From patchwork Thu Jun 22 20:57:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289697 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 65AADC001B1 for ; Thu, 22 Jun 2023 20:58:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231329AbjFVU6p (ORCPT ); Thu, 22 Jun 2023 16:58:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231336AbjFVU6m (ORCPT ); Thu, 22 Jun 2023 16:58:42 -0400 Received: from mail-yb1-xb2e.google.com (mail-yb1-xb2e.google.com [IPv6:2607:f8b0:4864:20::b2e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 711442694; Thu, 22 Jun 2023 13:58:04 -0700 (PDT) Received: by mail-yb1-xb2e.google.com with SMTP id 3f1490d57ef6-bb2ffa1e235so7075814276.0; Thu, 22 Jun 2023 13:58:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467478; x=1690059478; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=DXYENedStYVsFXpaqy8X3+wmlabVR1q8JHyD5+dxFj0=; b=oWqJsihW3Mww2gXtWCx6NN1vPsnSmScA0KqTPfHOB2L1LHk/oZiCduo6ehbRGsj3u1 3K4TZcf4ipLxkr2vI99P6IIjGRev7x1HMuDNE81bxWMzhRU6uyioFzTZTsBBM3X8iluN tBK6Y8stl1G/1qCE5N0GQ3Qa+8Pmm+N03Nm44USTvnLt7V5LvALEjdohUoDqU7kxuZLt IgowLw0bUJXUmFP7v8RMzC0EWbABefmvZCJB+fh5ayxmmTYy0RtnueLq29qEPJSsxOpa bu8Ei1mTrJukofeSyNP/F3QTQ4sGlZhg7IWdEGo85alo6ycJggU6oX8hiEo/eX8VwR76 IyqQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467478; x=1690059478; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=DXYENedStYVsFXpaqy8X3+wmlabVR1q8JHyD5+dxFj0=; b=DicwCtgzB61TGoXHIKOtF3ZO8QJPnWYrdrdut+oSomrFimf/ZyUhSFStCZ61JYQ3F7 hV3QEpL40+saw8vEO7C8982V3go228Dn9X4AsqQbKQfWds1O7lACSZA0WkeMvUcCae9a l+ayhzagpZ9TUjynF/dhTvPwvWVSU3ihIbLhuCtQYOfEPOEHA6s7y76Y2PqgNopu5m1x MSP+EWPMGAPa/T3DXJlIs17N7gZEwzqbDwNJnVfdvtfd8MSrjWOUkaAswQ+REJyXtMMs wMDuc9MZz7vsZWHJ309MyQIcKjB3sQZj0tKQs1hdjgvoa3V8CjSKfczpRxcr8sS7IrjB 2+Mw== X-Gm-Message-State: AC+VfDwaEGEiHZZNizLPnWvoEpnlxZTu2qclLInsg0agkuGjJcDumOr6 m3vd4wPh2PL9/Qh2FtOZEXk= X-Google-Smtp-Source: ACHHUZ6Iv2PzBVPKZ2hNXXGWhZAWkMVnsSNpndVsfJ1BDlCBJeA25OFgV2XyKC6amBhVDhSuupua4g== X-Received: by 2002:a25:2fce:0:b0:bac:2a78:aaa7 with SMTP id v197-20020a252fce000000b00bac2a78aaa7mr16148309ybv.54.1687467478063; Thu, 22 Jun 2023 13:57:58 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.57.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:57:57 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 01/33] mm: Add PAGE_TYPE_OP folio functions Date: Thu, 22 Jun 2023 13:57:13 -0700 Message-Id: <20230622205745.79707-2-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org No folio equivalents for page type operations have been defined, so define them for later folio conversions. Also changes the Page##uname macros to take in const struct page* since we only read the memory here. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- include/linux/page-flags.h | 30 +++++++++++++++++++++++------- 1 file changed, 23 insertions(+), 7 deletions(-) diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 92a2063a0a23..9218028caf33 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -908,6 +908,8 @@ static inline bool is_page_hwpoison(struct page *page) #define PageType(page, flag) \ ((page->page_type & (PAGE_TYPE_BASE | flag)) == PAGE_TYPE_BASE) +#define folio_test_type(folio, flag) \ + ((folio->page.page_type & (PAGE_TYPE_BASE | flag)) == PAGE_TYPE_BASE) static inline int page_type_has_type(unsigned int page_type) { @@ -919,27 +921,41 @@ static inline int page_has_type(struct page *page) return page_type_has_type(page->page_type); } -#define PAGE_TYPE_OPS(uname, lname) \ -static __always_inline int Page##uname(struct page *page) \ +#define PAGE_TYPE_OPS(uname, lname, fname) \ +static __always_inline int Page##uname(const struct page *page) \ { \ return PageType(page, PG_##lname); \ } \ +static __always_inline int folio_test_##fname(const struct folio *folio)\ +{ \ + return folio_test_type(folio, PG_##lname); \ +} \ static __always_inline void __SetPage##uname(struct page *page) \ { \ VM_BUG_ON_PAGE(!PageType(page, 0), page); \ page->page_type &= ~PG_##lname; \ } \ +static __always_inline void __folio_set_##fname(struct folio *folio) \ +{ \ + VM_BUG_ON_FOLIO(!folio_test_type(folio, 0), folio); \ + folio->page.page_type &= ~PG_##lname; \ +} \ static __always_inline void __ClearPage##uname(struct page *page) \ { \ VM_BUG_ON_PAGE(!Page##uname(page), page); \ page->page_type |= PG_##lname; \ -} +} \ +static __always_inline void __folio_clear_##fname(struct folio *folio) \ +{ \ + VM_BUG_ON_FOLIO(!folio_test_##fname(folio), folio); \ + folio->page.page_type |= PG_##lname; \ +} \ /* * PageBuddy() indicates that the page is free and in the buddy system * (see mm/page_alloc.c). */ -PAGE_TYPE_OPS(Buddy, buddy) +PAGE_TYPE_OPS(Buddy, buddy, buddy) /* * PageOffline() indicates that the page is logically offline although the @@ -963,7 +979,7 @@ PAGE_TYPE_OPS(Buddy, buddy) * pages should check PageOffline() and synchronize with such drivers using * page_offline_freeze()/page_offline_thaw(). */ -PAGE_TYPE_OPS(Offline, offline) +PAGE_TYPE_OPS(Offline, offline, offline) extern void page_offline_freeze(void); extern void page_offline_thaw(void); @@ -973,12 +989,12 @@ extern void page_offline_end(void); /* * Marks pages in use as page tables. */ -PAGE_TYPE_OPS(Table, table) +PAGE_TYPE_OPS(Table, table, pgtable) /* * Marks guardpages used with debug_pagealloc. */ -PAGE_TYPE_OPS(Guard, guard) +PAGE_TYPE_OPS(Guard, guard, guard) extern bool is_free_buddy_page(struct page *page); From patchwork Thu Jun 22 20:57:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289698 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4A548C001DD for ; Thu, 22 Jun 2023 20:59:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231461AbjFVU7D (ORCPT ); Thu, 22 Jun 2023 16:59:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49110 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231336AbjFVU6x (ORCPT ); Thu, 22 Jun 2023 16:58:53 -0400 Received: from mail-yb1-xb35.google.com (mail-yb1-xb35.google.com [IPv6:2607:f8b0:4864:20::b35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3A2626AC; Thu, 22 Jun 2023 13:58:13 -0700 (PDT) Received: by mail-yb1-xb35.google.com with SMTP id 3f1490d57ef6-bd6d9d7da35so7433126276.0; Thu, 22 Jun 2023 13:58:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467480; x=1690059480; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=qrvvNogNsRIG83AHolsa9VCJSL8m6r0U+Sd+5GfHivE=; b=KRYiTPa+c/tVoaJ+3dZS4cLOTSKca+/tfUQ3JeDVu73GmVqps7KdsafFOLBranRl3o XGASS552wrkc4i7AyqYqkBS9E2bGfVs6VaJjrSMpB6+h2kA8qTrBwdwXD7HZ0uPFkzEr mLs6bk2eo4sPlhjHz+uOvvGYISwwAmtTPhHFgzUAnDvPaqWpwBhojPMOt6opGt2D5oKC XNigZkqZiwfc5pQLxvwb1NwMN92RSQp6HSUhvqRpXqhTQWx6SqvyrTdy9r4JKWSpMkwF TX6dYagRDEjvQLY6rwycjttvIBm56ezZgGtKTQaL+AAx6Np6Okl1PvSd6YP7qp9YxIbi 4K0w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467480; x=1690059480; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=qrvvNogNsRIG83AHolsa9VCJSL8m6r0U+Sd+5GfHivE=; b=ERFuAHaqLExSBXTbBt70lLBJZHBRys4Fe5l//l1ADEVS7oHE+lya4RSL1UTjpog2Ql s9UqZWyRwJcyX0QAKs01BWTF4agtjWwsh3DHN+o+z93X+qKfzMGUijSSSS581vpOeiKS ORehVK6QnKAXR0D8WtsEkulXtj/haZqjhzPHfue73YaimNqMu937CFGIll4LWRiIVN1Y qTeMUSjcVY7Fz0DHhrhEDEiseqjnrsNE0gRrTmP7wc7ey2q9KqxJ7/Rx9nQkq3MZ/qv5 SfG+RO22VoGaBeujMOAKCS48wSHIpYQZ/JOMAuxT52tcNVkSdFnfu4U0P0IcdOlj0dV4 n/UA== X-Gm-Message-State: AC+VfDzi7CCAYCHBMeGwS8EXejy3xLTGKFO7RGJeSMfqEBZ+KdaYr4+6 gk5U9gtZIxyoqzrvwkrwdVw= X-Google-Smtp-Source: ACHHUZ72azbPgEnM10h3+Uy/lBMVdF9iS4rECO6ri/LhbP9GjX2972eBvU9RVBJ95UxDdXiOiTNdYA== X-Received: by 2002:a25:ada2:0:b0:ba7:b933:9063 with SMTP id z34-20020a25ada2000000b00ba7b9339063mr17587509ybi.4.1687467480239; Thu, 22 Jun 2023 13:58:00 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.57.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:57:59 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , David Hildenbrand , Claudio Imbrenda , Mike Rapoport Subject: [PATCH v5 02/33] s390: Use _pt_s390_gaddr for gmap address tracking Date: Thu, 22 Jun 2023 13:57:14 -0700 Message-Id: <20230622205745.79707-3-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org s390 uses page->index to keep track of page tables for the guest address space. In an attempt to consolidate the usage of page fields in s390, replace _pt_pad_2 with _pt_s390_gaddr to replace page->index in gmap. Since page->_pt_s390_gaddr aliases with mapping, ensure its set to NULL before freeing the pages as well. This also reverts commit 7e25de77bc5ea ("s390/mm: use pmd_pgtable_page() helper in __gmap_segment_gaddr()") which had s390 use pmd_pgtable_page() to get a gmap page table, as pmd_pgtable_page() should be used for more generic process page tables. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/s390/mm/gmap.c | 56 +++++++++++++++++++++++++++------------- include/linux/mm_types.h | 2 +- 2 files changed, 39 insertions(+), 19 deletions(-) diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index f4b6fc746fce..beb4804d9ca8 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -70,7 +70,7 @@ static struct gmap *gmap_alloc(unsigned long limit) page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); if (!page) goto out_free; - page->index = 0; + page->_pt_s390_gaddr = 0; list_add(&page->lru, &gmap->crst_list); table = page_to_virt(page); crst_table_init(table, etype); @@ -187,16 +187,20 @@ static void gmap_free(struct gmap *gmap) if (!(gmap_is_shadow(gmap) && gmap->removed)) gmap_flush_tlb(gmap); /* Free all segment & region tables. */ - list_for_each_entry_safe(page, next, &gmap->crst_list, lru) + list_for_each_entry_safe(page, next, &gmap->crst_list, lru) { + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); + } gmap_radix_tree_free(&gmap->guest_to_host); gmap_radix_tree_free(&gmap->host_to_guest); /* Free additional data for a shadow gmap */ if (gmap_is_shadow(gmap)) { /* Free all page tables. */ - list_for_each_entry_safe(page, next, &gmap->pt_list, lru) + list_for_each_entry_safe(page, next, &gmap->pt_list, lru) { + page->_pt_s390_gaddr = 0; page_table_free_pgste(page); + } gmap_rmap_radix_tree_free(&gmap->host_to_rmap); /* Release reference to the parent */ gmap_put(gmap->parent); @@ -318,12 +322,14 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table, list_add(&page->lru, &gmap->crst_list); *table = __pa(new) | _REGION_ENTRY_LENGTH | (*table & _REGION_ENTRY_TYPE_MASK); - page->index = gaddr; + page->_pt_s390_gaddr = gaddr; page = NULL; } spin_unlock(&gmap->guest_table_lock); - if (page) + if (page) { + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); + } return 0; } @@ -336,12 +342,14 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table, static unsigned long __gmap_segment_gaddr(unsigned long *entry) { struct page *page; - unsigned long offset; + unsigned long offset, mask; offset = (unsigned long) entry / sizeof(unsigned long); offset = (offset & (PTRS_PER_PMD - 1)) * PMD_SIZE; - page = pmd_pgtable_page((pmd_t *) entry); - return page->index + offset; + mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1); + page = virt_to_page((void *)((unsigned long) entry & mask)); + + return page->_pt_s390_gaddr + offset; } /** @@ -1351,6 +1359,7 @@ static void gmap_unshadow_pgt(struct gmap *sg, unsigned long raddr) /* Free page table */ page = phys_to_page(pgt); list_del(&page->lru); + page->_pt_s390_gaddr = 0; page_table_free_pgste(page); } @@ -1379,6 +1388,7 @@ static void __gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr, /* Free page table */ page = phys_to_page(pgt); list_del(&page->lru); + page->_pt_s390_gaddr = 0; page_table_free_pgste(page); } } @@ -1409,6 +1419,7 @@ static void gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr) /* Free segment table */ page = phys_to_page(sgt); list_del(&page->lru); + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); } @@ -1437,6 +1448,7 @@ static void __gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr, /* Free segment table */ page = phys_to_page(sgt); list_del(&page->lru); + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); } } @@ -1467,6 +1479,7 @@ static void gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr) /* Free region 3 table */ page = phys_to_page(r3t); list_del(&page->lru); + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); } @@ -1495,6 +1508,7 @@ static void __gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr, /* Free region 3 table */ page = phys_to_page(r3t); list_del(&page->lru); + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); } } @@ -1525,6 +1539,7 @@ static void gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr) /* Free region 2 table */ page = phys_to_page(r2t); list_del(&page->lru); + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); } @@ -1557,6 +1572,7 @@ static void __gmap_unshadow_r1t(struct gmap *sg, unsigned long raddr, /* Free region 2 table */ page = phys_to_page(r2t); list_del(&page->lru); + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); } } @@ -1762,9 +1778,9 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t, page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); if (!page) return -ENOMEM; - page->index = r2t & _REGION_ENTRY_ORIGIN; + page->_pt_s390_gaddr = r2t & _REGION_ENTRY_ORIGIN; if (fake) - page->index |= GMAP_SHADOW_FAKE_TABLE; + page->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; s_r2t = page_to_phys(page); /* Install shadow region second table */ spin_lock(&sg->guest_table_lock); @@ -1814,6 +1830,7 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t, return rc; out_free: spin_unlock(&sg->guest_table_lock); + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); return rc; } @@ -1846,9 +1863,9 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t, page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); if (!page) return -ENOMEM; - page->index = r3t & _REGION_ENTRY_ORIGIN; + page->_pt_s390_gaddr = r3t & _REGION_ENTRY_ORIGIN; if (fake) - page->index |= GMAP_SHADOW_FAKE_TABLE; + page->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; s_r3t = page_to_phys(page); /* Install shadow region second table */ spin_lock(&sg->guest_table_lock); @@ -1898,6 +1915,7 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t, return rc; out_free: spin_unlock(&sg->guest_table_lock); + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); return rc; } @@ -1930,9 +1948,9 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt, page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); if (!page) return -ENOMEM; - page->index = sgt & _REGION_ENTRY_ORIGIN; + page->_pt_s390_gaddr = sgt & _REGION_ENTRY_ORIGIN; if (fake) - page->index |= GMAP_SHADOW_FAKE_TABLE; + page->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; s_sgt = page_to_phys(page); /* Install shadow region second table */ spin_lock(&sg->guest_table_lock); @@ -1982,6 +2000,7 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt, return rc; out_free: spin_unlock(&sg->guest_table_lock); + page->_pt_s390_gaddr = 0; __free_pages(page, CRST_ALLOC_ORDER); return rc; } @@ -2014,9 +2033,9 @@ int gmap_shadow_pgt_lookup(struct gmap *sg, unsigned long saddr, if (table && !(*table & _SEGMENT_ENTRY_INVALID)) { /* Shadow page tables are full pages (pte+pgste) */ page = pfn_to_page(*table >> PAGE_SHIFT); - *pgt = page->index & ~GMAP_SHADOW_FAKE_TABLE; + *pgt = page->_pt_s390_gaddr & ~GMAP_SHADOW_FAKE_TABLE; *dat_protection = !!(*table & _SEGMENT_ENTRY_PROTECT); - *fake = !!(page->index & GMAP_SHADOW_FAKE_TABLE); + *fake = !!(page->_pt_s390_gaddr & GMAP_SHADOW_FAKE_TABLE); rc = 0; } else { rc = -EAGAIN; @@ -2054,9 +2073,9 @@ int gmap_shadow_pgt(struct gmap *sg, unsigned long saddr, unsigned long pgt, page = page_table_alloc_pgste(sg->mm); if (!page) return -ENOMEM; - page->index = pgt & _SEGMENT_ENTRY_ORIGIN; + page->_pt_s390_gaddr = pgt & _SEGMENT_ENTRY_ORIGIN; if (fake) - page->index |= GMAP_SHADOW_FAKE_TABLE; + page->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; s_pgt = page_to_phys(page); /* Install shadow page table */ spin_lock(&sg->guest_table_lock); @@ -2101,6 +2120,7 @@ int gmap_shadow_pgt(struct gmap *sg, unsigned long saddr, unsigned long pgt, return rc; out_free: spin_unlock(&sg->guest_table_lock); + page->_pt_s390_gaddr = 0; page_table_free_pgste(page); return rc; diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index de10fc797c8e..fbbe4e93a9ba 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -144,7 +144,7 @@ struct page { struct { /* Page table pages */ unsigned long _pt_pad_1; /* compound_head */ pgtable_t pmd_huge_pte; /* protected by page->ptl */ - unsigned long _pt_pad_2; /* mapping */ + unsigned long _pt_s390_gaddr; /* mapping */ union { struct mm_struct *pt_mm; /* x86 pgds only */ atomic_t pt_frag_refcount; /* powerpc */ From patchwork Thu Jun 22 20:57:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289699 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71B4BC04E69 for ; Thu, 22 Jun 2023 20:59:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231468AbjFVU7D (ORCPT ); Thu, 22 Jun 2023 16:59:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49138 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229993AbjFVU6y (ORCPT ); Thu, 22 Jun 2023 16:58:54 -0400 Received: from mail-yb1-xb2e.google.com (mail-yb1-xb2e.google.com [IPv6:2607:f8b0:4864:20::b2e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0726A26B6; Thu, 22 Jun 2023 13:58:18 -0700 (PDT) Received: by mail-yb1-xb2e.google.com with SMTP id 3f1490d57ef6-bcd0226607bso1693160276.1; Thu, 22 Jun 2023 13:58:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467482; x=1690059482; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=g10wkISUfh+NWh/zmhT9FX+m3ZttfvdTUqPKBonJP24=; b=pU1rNku+EwfuvvAUFkFumH3vBy2yB8eY8b9rmQMddlJoc9QhOnRcokyjWDtIUPPy9P MyE7phtpnefNxvysKqFF1dCChREaY4VAw7Hj9WJFlZFrzpk6eifBId3wubz0Vyh/S2pn 8/Y3zkVGHHKKYxzZzu8HCxLQTltPQvJHitS9QsbrsAUgPjueiuuK933isxWF/RQdLHvt zcy+Qct09qmvfH+KRctZzkT+vvZGDQDyiysBgsbHpUxND18HRJm9vVFEK6S0KHOtgU7u IRCWYGiDuX3Hydg/OjrZHIGz2lGmohOF8cCd3deLunhE1oH3PJ2GTuP2PJzlmW5OQRrp EAKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467482; x=1690059482; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=g10wkISUfh+NWh/zmhT9FX+m3ZttfvdTUqPKBonJP24=; b=hZdJ9mfjG68oQuD7MHZpubtTQt/2MrHFq5erfb64UGaENbBs2sdRa7aQk8siOH01iu Bi2M6SyG7eQ3XLw7vrhi3YD8b9roW+LgsExlzRPRp1pK3hVEiKCY4WBf1NvpuYlX8q5D c9axNFCY6wX0siVlO2jWiPi3Mrj4dEErrlY7TFjsj4MebPeiq/vvy02qTMZSlCN1lVSx vaQMPWEqWaKxa0jC+sOZwpokgVgNDiN5WIdH+KxNeYQe/B2zY7FgYHEsgdDFC3YqRWq2 h755yX+R+NXlysgZAkaZxBJLea39gibhXzi48a+nflsCQNW8z94j4bpsXXtVS+XOhFge PMNA== X-Gm-Message-State: AC+VfDxDPFdQsqGEXMMpnhzxxn5PBYqn/+1iS+xgjJhekFvuWcl7s9C4 3QqHD6p2z+8LU2z5UQbaGk0= X-Google-Smtp-Source: ACHHUZ77fWcfFpcqNU9K3kqcEPsqSpbWa/fmZ/3pFZFyzvd1rtc51te7WicHxIwYc2YzOzHNnZEaEA== X-Received: by 2002:a25:2f85:0:b0:bd5:eeb4:55be with SMTP id v127-20020a252f85000000b00bd5eeb455bemr19092596ybv.0.1687467482307; Thu, 22 Jun 2023 13:58:02 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:02 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 03/33] pgtable: Create struct ptdesc Date: Thu, 22 Jun 2023 13:57:15 -0700 Message-Id: <20230622205745.79707-4-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Currently, page table information is stored within struct page. As part of simplifying struct page, create struct ptdesc for page table information. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- include/linux/pgtable.h | 68 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 5063b482e34f..d46cb709ce08 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -987,6 +987,74 @@ static inline void ptep_modify_prot_commit(struct vm_area_struct *vma, #endif /* __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION */ #endif /* CONFIG_MMU */ + +/** + * struct ptdesc - Memory descriptor for page tables. + * @__page_flags: Same as page flags. Unused for page tables. + * @pt_rcu_head: For freeing page table pages. + * @pt_list: List of used page tables. Used for s390 and x86. + * @_pt_pad_1: Padding that aliases with page's compound head. + * @pmd_huge_pte: Protected by ptdesc->ptl, used for THPs. + * @_pt_s390_gaddr: Aliases with page's mapping. Used for s390 gmap only. + * @pt_mm: Used for x86 pgds. + * @pt_frag_refcount: For fragmented page table tracking. Powerpc and s390 only. + * @ptl: Lock for the page table. + * @__page_type: Same as page->page_type. Unused for page tables. + * @_refcount: Same as page refcount. Used for s390 page tables. + * @pt_memcg_data: Memcg data. Tracked for page tables here. + * + * This struct overlays struct page for now. Do not modify without a good + * understanding of the issues. + */ +struct ptdesc { + unsigned long __page_flags; + + union { + struct rcu_head pt_rcu_head; + struct list_head pt_list; + struct { + unsigned long _pt_pad_1; + pgtable_t pmd_huge_pte; + }; + }; + unsigned long _pt_s390_gaddr; + + union { + struct mm_struct *pt_mm; + atomic_t pt_frag_refcount; + }; + + union { + unsigned long _pt_pad_2; +#if ALLOC_SPLIT_PTLOCKS + spinlock_t *ptl; +#else + spinlock_t ptl; +#endif + }; + unsigned int __page_type; + atomic_t _refcount; +#ifdef CONFIG_MEMCG + unsigned long pt_memcg_data; +#endif +}; + +#define TABLE_MATCH(pg, pt) \ + static_assert(offsetof(struct page, pg) == offsetof(struct ptdesc, pt)) +TABLE_MATCH(flags, __page_flags); +TABLE_MATCH(compound_head, pt_list); +TABLE_MATCH(compound_head, _pt_pad_1); +TABLE_MATCH(pmd_huge_pte, pmd_huge_pte); +TABLE_MATCH(mapping, _pt_s390_gaddr); +TABLE_MATCH(pt_mm, pt_mm); +TABLE_MATCH(ptl, ptl); +TABLE_MATCH(rcu_head, pt_rcu_head); +#ifdef CONFIG_MEMCG +TABLE_MATCH(memcg_data, pt_memcg_data); +#endif +#undef TABLE_MATCH +static_assert(sizeof(struct ptdesc) <= sizeof(struct page)); + /* * No-op macros that just return the current protection value. Defined here * because these macros can be used even if CONFIG_MMU is not defined. From patchwork Thu Jun 22 20:57:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289700 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C3716C05052 for ; Thu, 22 Jun 2023 20:59:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231524AbjFVU7K (ORCPT ); Thu, 22 Jun 2023 16:59:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49250 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230478AbjFVU7B (ORCPT ); Thu, 22 Jun 2023 16:59:01 -0400 Received: from mail-yb1-xb30.google.com (mail-yb1-xb30.google.com [IPv6:2607:f8b0:4864:20::b30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CC4B0272E; Thu, 22 Jun 2023 13:58:19 -0700 (PDT) Received: by mail-yb1-xb30.google.com with SMTP id 3f1490d57ef6-bff4f1e93caso2006021276.0; Thu, 22 Jun 2023 13:58:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467484; x=1690059484; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=HtFJ7gYDDt6nFtJ3t4rf4iEtrxS/aE7Nt5tBsex6r9A=; b=ZxYyU7k2vGalXaPVFbsAoA3LfcjeLDhIOlxkMUoxB7wD5DzRvEzQGJZMJxTOPdFAYE GF8H8J3v3pIjRre3uBFGoQhrehz40XLVdSwrbVpckO4S1lcUeENHrNTK6kfLjGoHYzvr nhXtSSc9VaEE/j5fCXHdi35T0qtxrEHQkX2kvNCXyGYBu1DiUkeGGXiy91rFgYuyJidG yhM8UfJ79m5utnGApQW/CB4uav8Cyl/ViwcY0GfzkowvqJFo3jCDUp7w3xYorcQhuQVB Ccqw/rMENg5s9Xp75lULxIZiDzj7mDSoiTj8XYlqSon7icuirfeluYeOq+6o64D11tV3 SMqQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467484; x=1690059484; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=HtFJ7gYDDt6nFtJ3t4rf4iEtrxS/aE7Nt5tBsex6r9A=; b=WRGeMJHoIJlB8k4i6fRaJOqzjqxP518QE4fSqAq+xZjnfQ1IleihFngy5wV6i6KaH4 HsNrKvBnhoTRz+mXGajY4gBW4EH84iEniDnpGLTrm+Frobsd/YeQ8CHQH97SYYBXz//B fjKUMHabcQJhqbX96qJiOdcCJJfyzeQ+R+Q+6DY5DT6O2FKiNFpPuUQTz/EUShkgV6G6 hyBNlXKvaRZetZljVy5P4eBLtpq4Roy+PgIRhCUagbEsOz5KrZAXoozJRdx8zz3NkTpy bNJuNDSp6HN0uFAOXZ/ovqGcgbkfgpQssGpEZKgis90EAMKGdfaZXW21Vifdn69IAkJA ZzsA== X-Gm-Message-State: AC+VfDwy8Kc3qa6NNVyok3gGNPpMzeLdlSSXpfzx0bA9atvW2/Iv/g/u KlKECe8k5XgnkQlI7mZ7jvpliMjHMbkwOQ== X-Google-Smtp-Source: ACHHUZ5hnxQ163/uFnii7yUzhLCvlKkxDndNuqoPVJ1DEXuk1sFzA/lJHmZOgLxy0t1IuUHDUPN6qA== X-Received: by 2002:a25:df84:0:b0:bcc:f2cc:73e with SMTP id w126-20020a25df84000000b00bccf2cc073emr16743014ybg.22.1687467484442; Thu, 22 Jun 2023 13:58:04 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:04 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" Subject: [PATCH v5 04/33] mm: add utility functions for ptdesc Date: Thu, 22 Jun 2023 13:57:16 -0700 Message-Id: <20230622205745.79707-5-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Introduce utility functions setting the foundation for ptdescs. These will also assist in the splitting out of ptdesc from struct page. Functions that focus on the descriptor are prefixed with ptdesc_* while functions that focus on the pagetable are prefixed with pagetable_*. pagetable_alloc() is defined to allocate new ptdesc pages as compound pages. This is to standardize ptdescs by allowing for one allocation and one free function, in contrast to 2 allocation and 2 free functions. Signed-off-by: Vishal Moola (Oracle) --- include/asm-generic/tlb.h | 11 ++++++++ include/linux/mm.h | 56 +++++++++++++++++++++++++++++++++++++++ include/linux/pgtable.h | 12 +++++++++ 3 files changed, 79 insertions(+) diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index b46617207c93..6bade9e0e799 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -481,6 +481,17 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) return tlb_remove_page_size(tlb, page, PAGE_SIZE); } +static inline void tlb_remove_ptdesc(struct mmu_gather *tlb, void *pt) +{ + tlb_remove_table(tlb, pt); +} + +/* Like tlb_remove_ptdesc, but for page-like page directories. */ +static inline void tlb_remove_page_ptdesc(struct mmu_gather *tlb, struct ptdesc *pt) +{ + tlb_remove_page(tlb, ptdesc_page(pt)); +} + static inline void tlb_change_page_size(struct mmu_gather *tlb, unsigned int page_size) { diff --git a/include/linux/mm.h b/include/linux/mm.h index 0dad5f40ef96..14d95d494958 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2744,6 +2744,57 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a } #endif /* CONFIG_MMU */ +static inline struct ptdesc *virt_to_ptdesc(const void *x) +{ + return page_ptdesc(virt_to_page(x)); +} + +static inline void *ptdesc_to_virt(const struct ptdesc *pt) +{ + return page_to_virt(ptdesc_page(pt)); +} + +static inline void *ptdesc_address(const struct ptdesc *pt) +{ + return folio_address(ptdesc_folio(pt)); +} + +static inline bool pagetable_is_reserved(struct ptdesc *pt) +{ + return folio_test_reserved(ptdesc_folio(pt)); +} + +/** + * pagetable_alloc - Allocate pagetables + * @gfp: GFP flags + * @order: desired pagetable order + * + * pagetable_alloc allocates memory for page tables as well as a page table + * descriptor to describe that memory. + * + * Return: The ptdesc describing the allocated page tables. + */ +static inline struct ptdesc *pagetable_alloc(gfp_t gfp, unsigned int order) +{ + struct page *page = alloc_pages(gfp | __GFP_COMP, order); + + return page_ptdesc(page); +} + +/** + * pagetable_free - Free pagetables + * @pt: The page table descriptor + * + * pagetable_free frees the memory of all page tables described by a page + * table descriptor and the memory for the descriptor itself. + */ +static inline void pagetable_free(struct ptdesc *pt) +{ + struct page *page = ptdesc_page(pt); + + __free_pages(page, compound_order(page)); +} + #if USE_SPLIT_PTE_PTLOCKS #if ALLOC_SPLIT_PTLOCKS void __init ptlock_cache_init(void); @@ -2981,6 +3032,11 @@ static inline void mark_page_reserved(struct page *page) adjust_managed_page_count(page, -1); } +static inline void free_reserved_ptdesc(struct ptdesc *pt) +{ + free_reserved_page(ptdesc_page(pt)); +} + /* * Default method to free all the __init memory into the buddy system. * The freed pages will be poisoned with pattern "poison" if it's within diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index d46cb709ce08..e9bb5f18cade 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1055,6 +1055,18 @@ TABLE_MATCH(memcg_data, pt_memcg_data); #undef TABLE_MATCH static_assert(sizeof(struct ptdesc) <= sizeof(struct page)); +#define ptdesc_page(pt) (_Generic((pt), \ + const struct ptdesc *: (const struct page *)(pt), \ + struct ptdesc *: (struct page *)(pt))) + +#define ptdesc_folio(pt) (_Generic((pt), \ + const struct ptdesc *: (const struct folio *)(pt), \ + struct ptdesc *: (struct folio *)(pt))) + +#define page_ptdesc(p) (_Generic((p), \ + const struct page *: (const struct ptdesc *)(p), \ + struct page *: (struct ptdesc *)(p))) + /* * No-op macros that just return the current protection value. Defined here * because these macros can be used even if CONFIG_MMU is not defined. From patchwork Thu Jun 22 20:57:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289701 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 16FC6C10F19 for ; Thu, 22 Jun 2023 20:59:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231386AbjFVU7L (ORCPT ); Thu, 22 Jun 2023 16:59:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49278 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231414AbjFVU7C (ORCPT ); Thu, 22 Jun 2023 16:59:02 -0400 Received: from mail-ot1-x32c.google.com (mail-ot1-x32c.google.com [IPv6:2607:f8b0:4864:20::32c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BAF542704; Thu, 22 Jun 2023 13:58:24 -0700 (PDT) Received: by mail-ot1-x32c.google.com with SMTP id 46e09a7af769-6b5d57d7db9so1630320a34.3; Thu, 22 Jun 2023 13:58:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467487; x=1690059487; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=5MMx6i8bJUxARp5QNqsq1CJUY3hOxlwkAEMcUNtK7dI=; b=UdIEW49a6VlVFdeDO40XUMIhkzu0TZbzMPBM/WacFFYU0Mf2IMmAOz+NL1cV98Ton4 4zQ7N3mgDzFH/zAeyyuA7dsXAtz6L9a3ryBLZR0keuhq84g9s5CyaVK84D28lhUtpY1k n1Pbrc0aBtOd2I2lssPU62Gn+t4FuAK2YSMld5ItzYd2Gb7upO15jx4dCKR0ZoMoveD4 fYCQ1IFYfK8OlRQ+gZ/yAiK4LxmWYPlg8lrZ4XnMaYZEtLSmgFLWfXItXcddGU79r9OH 9d/82j8McTJZKyaaoZkqZMldnjmKIChpQ0nH7tpNr90msjJzxK9KTHEvxYDWGujERLdc e96g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467487; x=1690059487; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=5MMx6i8bJUxARp5QNqsq1CJUY3hOxlwkAEMcUNtK7dI=; b=ZJDUNbzJ8lAfT8uu4s4+wkMUDplbb0xWatsW09NN51p9EGIuOuezKqLM44dhzXaL7W zcdemEv1nehrlmGDikG20FFxEcdsJN9f7K1pGYuFtXXn5ruQsN3STynYsvuBIJxOrbX6 9lOjpa0zpGJ04h/L0XohNThRRaaTczLavHzD7EFAjM/Vkh+Fh1HekwDldcrT4OONOCOR njh9UEpW+aqhSAlzksl+VAYWI4QRGS5ZEhVU04snVct/2yYYAPUwsqa/j+HFJUepgTtb lV6Et5A3gyeiScSyC24qSl6e2hlVK6ouBOtXwdz1yTUQ1CzuIWR/tbgGmOyQYtqR+D5v 7Ruw== X-Gm-Message-State: AC+VfDyURCDBXPKtJFhx//7RBm1sovFh+qUTPNwuJ81Smd4yHA9f/hBt vMWwaQh4I5Jnn+pBWpOp1Wg= X-Google-Smtp-Source: ACHHUZ5msoxCs4WtHFESbyMK1EuaDf4wukFNhVJUOVId63qr2aSW3HXx+zFK0CBZB4PkAluxQSVOjw== X-Received: by 2002:a05:6359:2ea4:b0:12b:e5b1:1c9c with SMTP id rp36-20020a0563592ea400b0012be5b11c9cmr10630381rwb.14.1687467486510; Thu, 22 Jun 2023 13:58:06 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:06 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 05/33] mm: Convert pmd_pgtable_page() to pmd_ptdesc() Date: Thu, 22 Jun 2023 13:57:17 -0700 Message-Id: <20230622205745.79707-6-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Converts pmd_pgtable_page() to pmd_ptdesc() and all its callers. This removes some direct accesses to struct page, working towards splitting out struct ptdesc from struct page. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- include/linux/mm.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 14d95d494958..1511faf0263c 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2915,15 +2915,15 @@ pte_t *pte_offset_map_nolock(struct mm_struct *mm, pmd_t *pmd, #if USE_SPLIT_PMD_PTLOCKS -static inline struct page *pmd_pgtable_page(pmd_t *pmd) +static inline struct ptdesc *pmd_ptdesc(pmd_t *pmd) { unsigned long mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1); - return virt_to_page((void *)((unsigned long) pmd & mask)); + return virt_to_ptdesc((void *)((unsigned long) pmd & mask)); } static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd) { - return ptlock_ptr(pmd_pgtable_page(pmd)); + return ptlock_ptr(ptdesc_page(pmd_ptdesc(pmd))); } static inline bool pmd_ptlock_init(struct page *page) @@ -2942,7 +2942,7 @@ static inline void pmd_ptlock_free(struct page *page) ptlock_free(page); } -#define pmd_huge_pte(mm, pmd) (pmd_pgtable_page(pmd)->pmd_huge_pte) +#define pmd_huge_pte(mm, pmd) (pmd_ptdesc(pmd)->pmd_huge_pte) #else From patchwork Thu Jun 22 20:57:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289704 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B89B5EB64DD for ; Thu, 22 Jun 2023 20:59:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231716AbjFVU7b (ORCPT ); Thu, 22 Jun 2023 16:59:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231435AbjFVU7C (ORCPT ); Thu, 22 Jun 2023 16:59:02 -0400 Received: from mail-oo1-xc2c.google.com (mail-oo1-xc2c.google.com [IPv6:2607:f8b0:4864:20::c2c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A02E2100; Thu, 22 Jun 2023 13:58:27 -0700 (PDT) Received: by mail-oo1-xc2c.google.com with SMTP id 006d021491bc7-55e11f94817so4751978eaf.2; Thu, 22 Jun 2023 13:58:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467488; x=1690059488; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=sr5TgrSX24KD5rPSp2rkPhxpII4heal/IIgk1FACoIs=; b=UtF2QiZk6b9G+hZ8o+uaaa8jIMv9kwu5Z4W+DnKhqSxtuxZLeuCmgWiQ2UyCbKdGf3 JlKYQP1/9HAEwi4YcMuZIpkc1UasphklUD1y4PAfxdaiUenlc82pk0MDNgE4UyvTP/Ti WAZ4mtTP+0UbBT6PIwdrRUvrUpbxA+faq7jSe2iTSffGzc1HNKXsxuak3eG36Kz3Hx1p 3Bw014l7N9peXiYCyjbUvF7k31KviCnInVoJPhH8kz/FXkdJ8oxWXWbjuOh6BjmUEfNL NLvkARmq7C0ZzVI4l8HT21OfZWS/swkiU6k+jkbLgeAOyE/KVS/34HjWz0qthh2YGY4M vuhg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467488; x=1690059488; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=sr5TgrSX24KD5rPSp2rkPhxpII4heal/IIgk1FACoIs=; b=LmSoB8fH1eDh4wgcjjE2RjieMj/W83hYGq7yDiI7vOdAEtjM9Er2hVnaBdwQNCoXa0 dk6kB2mWe7Jx/6cltrQOAes6xOkTcK9DRNBgkJnVXbWf+KpV4biVmYw/vcZSaakXeCQe depRu+gZLoBMoogeMRSxSHXnuz9AebypY6rtZYLUsSsG17pc+NgDp3T09v8g/vP3pFrK pN3A/8Fv7w/3cEC/JHTTCIo/bIngiawBccU66fEv8uvwDyq3SV8kIPiG06+6A/4tSnXH J3uRcNCsV9rwopS57M+cCe2aZ1Utai1KVV//UruPMrHxUprB+5rBazBhV3QPUiw7yYaD CZ+Q== X-Gm-Message-State: AC+VfDwcM8S6Mw0uuKLDCbKlkVM3cRlCnQBiLSOdbwFWYX+E7UP1TRhm y/Or8emD4oFBn9U5ZDhoTYk= X-Google-Smtp-Source: ACHHUZ6Wv4q+lCV8nxexJGI3S2vfJP94k7k+pAexpWAqQNNuxMHJpmGx+Tn2Ll2+HAYtwXHgGRnsHw== X-Received: by 2002:a05:6358:9f9f:b0:132:d8bc:b15b with SMTP id fy31-20020a0563589f9f00b00132d8bcb15bmr1343396rwb.2.1687467488545; Thu, 22 Jun 2023 13:58:08 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:08 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 06/33] mm: Convert ptlock_alloc() to use ptdescs Date: Thu, 22 Jun 2023 13:57:18 -0700 Message-Id: <20230622205745.79707-7-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org This removes some direct accesses to struct page, working towards splitting out struct ptdesc from struct page. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- include/linux/mm.h | 6 +++--- mm/memory.c | 4 ++-- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 1511faf0263c..39b0a4661e44 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2798,7 +2798,7 @@ static inline void pagetable_free(struct ptdesc *pt) #if USE_SPLIT_PTE_PTLOCKS #if ALLOC_SPLIT_PTLOCKS void __init ptlock_cache_init(void); -extern bool ptlock_alloc(struct page *page); +bool ptlock_alloc(struct ptdesc *ptdesc); extern void ptlock_free(struct page *page); static inline spinlock_t *ptlock_ptr(struct page *page) @@ -2810,7 +2810,7 @@ static inline void ptlock_cache_init(void) { } -static inline bool ptlock_alloc(struct page *page) +static inline bool ptlock_alloc(struct ptdesc *ptdesc) { return true; } @@ -2840,7 +2840,7 @@ static inline bool ptlock_init(struct page *page) * slab code uses page->slab_cache, which share storage with page->ptl. */ VM_BUG_ON_PAGE(*(unsigned long *)&page->ptl, page); - if (!ptlock_alloc(page)) + if (!ptlock_alloc(page_ptdesc(page))) return false; spin_lock_init(ptlock_ptr(page)); return true; diff --git a/mm/memory.c b/mm/memory.c index 80faf3e76232..2ff14f50c7b3 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -5920,14 +5920,14 @@ void __init ptlock_cache_init(void) SLAB_PANIC, NULL); } -bool ptlock_alloc(struct page *page) +bool ptlock_alloc(struct ptdesc *ptdesc) { spinlock_t *ptl; ptl = kmem_cache_alloc(page_ptl_cachep, GFP_KERNEL); if (!ptl) return false; - page->ptl = ptl; + ptdesc->ptl = ptl; return true; } From patchwork Thu Jun 22 20:57:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289702 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C80B7C0015E for ; Thu, 22 Jun 2023 20:59:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231666AbjFVU72 (ORCPT ); Thu, 22 Jun 2023 16:59:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231446AbjFVU7C (ORCPT ); Thu, 22 Jun 2023 16:59:02 -0400 Received: from mail-yw1-x1136.google.com (mail-yw1-x1136.google.com [IPv6:2607:f8b0:4864:20::1136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BF2471FF9; Thu, 22 Jun 2023 13:58:28 -0700 (PDT) Received: by mail-yw1-x1136.google.com with SMTP id 00721157ae682-561b7729a12so16639267b3.1; Thu, 22 Jun 2023 13:58:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467490; x=1690059490; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Z9Q71kHk0zB6vt5ahL9ZHs7069+SCA/PofhBzVdlAuY=; b=SXnr3kTV6njYUvauamdMyIGRqi3Z41OxkG9JlPzJUx0NriTeoHWuqaMEo3l+9h8t2a VYkat48qctNxV1/ppcRnfQARZuWAzrRCUbykSbsoBMp8966TwG20r91mIMZZWqpjcTmW hdpH7DDiGoYlRwkaTlsQfcolxJPdgdCgC9/4W8c/dT4apJrOeLX3lj0oWu+YQP0DxUAd osWDaPCIsD5h/hDouYKm/GWbJh0+G1rOXddszwPTKiRotQWqfvXUbSh9a+2twyPuDXpa FZNLCmQA2AiifhKNd54UF2voysI7AeqYSwKdAxxqSAv3Uf/qcrBy28RD1vznPZVN3aBc SnyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467490; x=1690059490; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Z9Q71kHk0zB6vt5ahL9ZHs7069+SCA/PofhBzVdlAuY=; b=L1a07QJg/amYII9ihKw4KOFKapvK3hOgca3EhoCYV5wQHtpgmSLmOptnTEyWqNr9PW O56V4eHT1TMtcTekJW2B0LS50DDJJtHfh3C/Gjorto1rZ0AbYPADRP7puqigsM7WvYdj NYmEvtkbGZ5dXze7zvSVuzF/lW9ud54w5ilcYdlJZZj9o9SlbJnIjZ8c99UPDwYackn3 Zf5YvttdXNcK3jRQzECZdpCR5K752VRex/fwfP4quY/PqoEkhV7lI9mN79rofXWGbhuT bklWd0yLw5DcVbhq9u47Bf52mTYoB/ufoueYVFYURtJB5ljnZqTnBUhqDKCWY26MXAdT Wq6g== X-Gm-Message-State: AC+VfDytWw1LOK09lfRyumEEATEpRARaPB1XgKvqHlXzk8DEFATSCFcu 3qjRMEU721zkgNKhNLANEzQ= X-Google-Smtp-Source: ACHHUZ6BwDtDcu2DafE0mELxOK/IzeJcBBP6EuYjmA8bqRWBwzcd6lelREQA4aNwT3EjfCEygFsIlw== X-Received: by 2002:a25:2144:0:b0:bce:5e08:c330 with SMTP id h65-20020a252144000000b00bce5e08c330mr18770867ybh.29.1687467490539; Thu, 22 Jun 2023 13:58:10 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:10 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 07/33] mm: Convert ptlock_ptr() to use ptdescs Date: Thu, 22 Jun 2023 13:57:19 -0700 Message-Id: <20230622205745.79707-8-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org This removes some direct accesses to struct page, working towards splitting out struct ptdesc from struct page. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/x86/xen/mmu_pv.c | 2 +- include/linux/mm.h | 14 +++++++------- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c index e0a975165de7..8796ec310483 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -667,7 +667,7 @@ static spinlock_t *xen_pte_lock(struct page *page, struct mm_struct *mm) spinlock_t *ptl = NULL; #if USE_SPLIT_PTE_PTLOCKS - ptl = ptlock_ptr(page); + ptl = ptlock_ptr(page_ptdesc(page)); spin_lock_nest_lock(ptl, &mm->page_table_lock); #endif diff --git a/include/linux/mm.h b/include/linux/mm.h index 39b0a4661e44..0b230d5d229a 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2801,9 +2801,9 @@ void __init ptlock_cache_init(void); bool ptlock_alloc(struct ptdesc *ptdesc); extern void ptlock_free(struct page *page); -static inline spinlock_t *ptlock_ptr(struct page *page) +static inline spinlock_t *ptlock_ptr(struct ptdesc *ptdesc) { - return page->ptl; + return ptdesc->ptl; } #else /* ALLOC_SPLIT_PTLOCKS */ static inline void ptlock_cache_init(void) @@ -2819,15 +2819,15 @@ static inline void ptlock_free(struct page *page) { } -static inline spinlock_t *ptlock_ptr(struct page *page) +static inline spinlock_t *ptlock_ptr(struct ptdesc *ptdesc) { - return &page->ptl; + return &ptdesc->ptl; } #endif /* ALLOC_SPLIT_PTLOCKS */ static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd) { - return ptlock_ptr(pmd_page(*pmd)); + return ptlock_ptr(page_ptdesc(pmd_page(*pmd))); } static inline bool ptlock_init(struct page *page) @@ -2842,7 +2842,7 @@ static inline bool ptlock_init(struct page *page) VM_BUG_ON_PAGE(*(unsigned long *)&page->ptl, page); if (!ptlock_alloc(page_ptdesc(page))) return false; - spin_lock_init(ptlock_ptr(page)); + spin_lock_init(ptlock_ptr(page_ptdesc(page))); return true; } @@ -2923,7 +2923,7 @@ static inline struct ptdesc *pmd_ptdesc(pmd_t *pmd) static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd) { - return ptlock_ptr(ptdesc_page(pmd_ptdesc(pmd))); + return ptlock_ptr(pmd_ptdesc(pmd)); } static inline bool pmd_ptlock_init(struct page *page) From patchwork Thu Jun 22 20:57:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289703 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 18A33C04FE1 for ; Thu, 22 Jun 2023 20:59:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231683AbjFVU7a (ORCPT ); Thu, 22 Jun 2023 16:59:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49334 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231475AbjFVU7E (ORCPT ); Thu, 22 Jun 2023 16:59:04 -0400 Received: from mail-yb1-xb2d.google.com (mail-yb1-xb2d.google.com [IPv6:2607:f8b0:4864:20::b2d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C8E91FF2; Thu, 22 Jun 2023 13:58:31 -0700 (PDT) Received: by mail-yb1-xb2d.google.com with SMTP id 3f1490d57ef6-bc43a73ab22so23041276.0; Thu, 22 Jun 2023 13:58:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467492; x=1690059492; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=QwvXTPG+SvX1bm+f7lh9ddV99LBkA8HMSnaL5DvtP/w=; b=V7iIPiXuenZc5LxLPVAYTxoBribtdhvsXYi0NcHOJsAsyDJa0lFaEv3HMhCS8nZW6D tBGbKDLUXgq6SXB+UHfoUVwA1VP1oc9uyCsQtJaaWpV0A9i7GdGsTkpa9yZ5PdH4EtVM Ni1Gr88vaVkgSSmwVNY0eyneVDMvJ4SahI/dxEEDmyh7acczYA1fdB5Q85cg9BE7TeJ5 v+qGG39VtOAMjNZakRVRxe4b5fNSSUnmW+YdbvmJDes0xjF1gJ/GuHYdLYvgYUIG6iI6 eUC4zgsXmS8SGsNdBxCv7WeYY6IHbiVQmbpLNYO57IVPmerTWPsJRHKkJEBcDrOn9Fu9 t5Kg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467492; x=1690059492; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=QwvXTPG+SvX1bm+f7lh9ddV99LBkA8HMSnaL5DvtP/w=; b=WJ3JevVmOQHMxXZcRh/gsHTP3WswkO0kYiNgdLO7yh5HGobJdb9mV0SWl1TZ79pFuO JQ5pqw2636tPOUUGcRDl1QBt3ehmxzQUAHyd+4B/n2EIYfVo9paOy+PbGl7/wggZVItn e3aqyILXPs/c3RpjHpV/m73qz3knEtl7bmLhx8leLGEVFY5wfVam8COhOZYBzK0iQ3Ko TiPX0cFM4c0TWsDTeDgEKfQMp2rQZfwMaE625xT1c3sAGGlnlaTF+MtPTV0ulohuz6BQ 5S+5xbcAI2q/t2XSUPYO9dAvEzQN4fIPusRMxIwvnPE6BMiFvPg2L3VXa7VhO+P7YLq/ pdHA== X-Gm-Message-State: AC+VfDylPrQLTq3XsQmNwVOWnLujZ0Tc/ULLBpSWEPiX47YfhQ0OBVik 2NRNoX2/WkMe+GDkTWa1dxM= X-Google-Smtp-Source: ACHHUZ6ppOE9aJqUa6Cvm3ZqXuUeTC6rF3mEFKF1yW3aWJUSdADhBmOmFOGnjJA0vfHR/02sJ+sTQw== X-Received: by 2002:a25:1406:0:b0:b9d:766d:f72b with SMTP id 6-20020a251406000000b00b9d766df72bmr17309619ybu.31.1687467492519; Thu, 22 Jun 2023 13:58:12 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:12 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 08/33] mm: Convert pmd_ptlock_init() to use ptdescs Date: Thu, 22 Jun 2023 13:57:20 -0700 Message-Id: <20230622205745.79707-9-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org This removes some direct accesses to struct page, working towards splitting out struct ptdesc from struct page. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- include/linux/mm.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 0b230d5d229a..1c4c6a7b69b3 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2926,12 +2926,12 @@ static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd) return ptlock_ptr(pmd_ptdesc(pmd)); } -static inline bool pmd_ptlock_init(struct page *page) +static inline bool pmd_ptlock_init(struct ptdesc *ptdesc) { #ifdef CONFIG_TRANSPARENT_HUGEPAGE - page->pmd_huge_pte = NULL; + ptdesc->pmd_huge_pte = NULL; #endif - return ptlock_init(page); + return ptlock_init(ptdesc_page(ptdesc)); } static inline void pmd_ptlock_free(struct page *page) @@ -2951,7 +2951,7 @@ static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd) return &mm->page_table_lock; } -static inline bool pmd_ptlock_init(struct page *page) { return true; } +static inline bool pmd_ptlock_init(struct ptdesc *ptdesc) { return true; } static inline void pmd_ptlock_free(struct page *page) {} #define pmd_huge_pte(mm, pmd) ((mm)->pmd_huge_pte) @@ -2967,7 +2967,7 @@ static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd) static inline bool pgtable_pmd_page_ctor(struct page *page) { - if (!pmd_ptlock_init(page)) + if (!pmd_ptlock_init(page_ptdesc(page))) return false; __SetPageTable(page); inc_lruvec_page_state(page, NR_PAGETABLE); From patchwork Thu Jun 22 20:57:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289705 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 345EEC04A94 for ; Thu, 22 Jun 2023 20:59:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231506AbjFVU7c (ORCPT ); Thu, 22 Jun 2023 16:59:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231480AbjFVU7H (ORCPT ); Thu, 22 Jun 2023 16:59:07 -0400 Received: from mail-yb1-xb34.google.com (mail-yb1-xb34.google.com [IPv6:2607:f8b0:4864:20::b34]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85AAA2116; Thu, 22 Jun 2023 13:58:33 -0700 (PDT) Received: by mail-yb1-xb34.google.com with SMTP id 3f1490d57ef6-bc9782291f5so7432660276.1; Thu, 22 Jun 2023 13:58:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467494; x=1690059494; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=uRcW1jW+95PozpJhE7MOWGztyyXp9a8KAqI8T3AvQGQ=; b=HsKWFMjgc4nubz/CGqFDPycebn/IPCG8iEQx6Mn71pJrvZNcRYxgpmqqwFpryLpJLe U6CGU7xvBFlirMshzGg8T6i9YZLzGTtKn+CcBm+t56pm6lJ3TVyGOGzuaYqSKVupajIy 2DQcn5crUg65j6RvjiPUyIXYF96jtw4qqx3rhyDnmY0a3BGeHq9tpmXxMVnvgVEpyfbE yzd/PSl+jlwziFt4f/K0ChaqSr0HvoaTl5CqhIJz/dAvHyE0NXDWuGcwuqDlT7PKZ2aX gZRI6eIDsk4xWFnXPJdwPbiPss9pl0UJqOUtsNLHKXkhccURxnMshNZ4JT+gJbW9Nc9s Wlpw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467494; x=1690059494; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=uRcW1jW+95PozpJhE7MOWGztyyXp9a8KAqI8T3AvQGQ=; b=bUAg4eZE6cUNF1V9ZFnkMkHkPr85a68BR9/xeEY+wOd+pVAmuKJgsd81borF2u4lAQ ZER1OaB43gew7TD8JtWgWht6mHG5n4i2zsxTQHQ0JEc3AQM8MwjGpcbQhV2r3slHLW7n sROvGlYFEmRgnXEpxUfUdn1ESZLDHHAwwOf5XHv8dI1y47khQCWPjMjnsxdSbirypvsy S4v4buHgXPAxF/whbrbBCHJwercOIow1TVc58CqF6ZxwRl5q4IxmP46ljc8fay3n5oU9 a8Q96uKTG2TrCCP1dauYWtjdvUaZpnRLpcrKBwQKkoZoy1TWgxVnoSQ2qhTX6JZ2QPs1 Q1Jg== X-Gm-Message-State: AC+VfDxSDlzu76s/MIaj5QoLtgY81MmKUtvb5a5hktXGy1zVh3YiQ0hx gfUVC2gC12GIpiTarTnxdYA= X-Google-Smtp-Source: ACHHUZ6cGkwHgROFidQ6wg7SrcN0EGNFb8Fy55CY8QeCStx6HVI/iqe9yVRaoh7RjiWHDP58CRtZwQ== X-Received: by 2002:a25:f902:0:b0:bff:209a:9034 with SMTP id q2-20020a25f902000000b00bff209a9034mr4880542ybe.22.1687467494535; Thu, 22 Jun 2023 13:58:14 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:14 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 09/33] mm: Convert ptlock_init() to use ptdescs Date: Thu, 22 Jun 2023 13:57:21 -0700 Message-Id: <20230622205745.79707-10-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org This removes some direct accesses to struct page, working towards splitting out struct ptdesc from struct page. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- include/linux/mm.h | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 1c4c6a7b69b3..4af424e4015a 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2830,7 +2830,7 @@ static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd) return ptlock_ptr(page_ptdesc(pmd_page(*pmd))); } -static inline bool ptlock_init(struct page *page) +static inline bool ptlock_init(struct ptdesc *ptdesc) { /* * prep_new_page() initialize page->private (and therefore page->ptl) @@ -2839,10 +2839,10 @@ static inline bool ptlock_init(struct page *page) * It can happen if arch try to use slab for page table allocation: * slab code uses page->slab_cache, which share storage with page->ptl. */ - VM_BUG_ON_PAGE(*(unsigned long *)&page->ptl, page); - if (!ptlock_alloc(page_ptdesc(page))) + VM_BUG_ON_PAGE(*(unsigned long *)&ptdesc->ptl, ptdesc_page(ptdesc)); + if (!ptlock_alloc(ptdesc)) return false; - spin_lock_init(ptlock_ptr(page_ptdesc(page))); + spin_lock_init(ptlock_ptr(ptdesc)); return true; } @@ -2855,13 +2855,13 @@ static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd) return &mm->page_table_lock; } static inline void ptlock_cache_init(void) {} -static inline bool ptlock_init(struct page *page) { return true; } +static inline bool ptlock_init(struct ptdesc *ptdesc) { return true; } static inline void ptlock_free(struct page *page) {} #endif /* USE_SPLIT_PTE_PTLOCKS */ static inline bool pgtable_pte_page_ctor(struct page *page) { - if (!ptlock_init(page)) + if (!ptlock_init(page_ptdesc(page))) return false; __SetPageTable(page); inc_lruvec_page_state(page, NR_PAGETABLE); @@ -2931,7 +2931,7 @@ static inline bool pmd_ptlock_init(struct ptdesc *ptdesc) #ifdef CONFIG_TRANSPARENT_HUGEPAGE ptdesc->pmd_huge_pte = NULL; #endif - return ptlock_init(ptdesc_page(ptdesc)); + return ptlock_init(ptdesc); } static inline void pmd_ptlock_free(struct page *page) From patchwork Thu Jun 22 20:57:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289706 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AE2A8C04FDF for ; Thu, 22 Jun 2023 20:59:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231442AbjFVU7e (ORCPT ); Thu, 22 Jun 2023 16:59:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230287AbjFVU7E (ORCPT ); Thu, 22 Jun 2023 16:59:04 -0400 Received: from mail-yb1-xb29.google.com (mail-yb1-xb29.google.com [IPv6:2607:f8b0:4864:20::b29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 987592682; Thu, 22 Jun 2023 13:58:34 -0700 (PDT) Received: by mail-yb1-xb29.google.com with SMTP id 3f1490d57ef6-be3e2d172cbso6083013276.3; Thu, 22 Jun 2023 13:58:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467496; x=1690059496; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=wSwuU7fg/k+TT5PagWIdYLap7GxOydHG9fnVI01D6B4=; b=I/bVEj+DUjJI8l/gEF/kUAGaYNT5Bo0ZW57h+bRIiIunD3HbfI+MBQBKO4xoy6kMld by9iDd+YOlloG6orphek9MUhK7idN+HCTnjbwImmtOZyc6e9u9PHx9KvfH/RMgtU+eEw KkmIT3OJU3QYrQoQpzTDW/lNw6UL91T+VL7WZPaAaf3blTIwnU3tSpIBE8mZnuXVnYm+ rvZ17E5R9YwQ5EOQRDXtuuSLgHPTNFwHVzddHdU5MZn7f0HGX0TpCThXTZUeoTrDSQuu 9j0W4VdWm0ZtykEhgIk1WPxDhiiNhplU95urAkZpVmBWbtxqWeEVwFyvBy3V06yBmQux q4sw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467496; x=1690059496; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=wSwuU7fg/k+TT5PagWIdYLap7GxOydHG9fnVI01D6B4=; b=Ju6wBrC6hYCpdJyEz0Ws8XjwoagHmWgTD01wPq6oiALpcwAvaOKupV47kBtWPTeNIv BBY7QLRlk34uUz0osP1/znI32nOR2YYGM002+vxmgPS52ufZvfdKg8MOoX6bo6ZEnQTa xX3SG5RNK9cJ09U5upROs4XFef/a+DPWACeT8b8XmKUeLVbn40kdUZrudIvSItVvp9bI 6mfzaibfkj3H2JPc2mA//fMb/Qh51CbdjoyYv56LhAYWuk7m3mqU5GN7HXMPQHhFEOa+ BtnixAvTG9lGUsz2rFZ3/sdLFPKxQFcxL/qFafeO7PIyaxQvRLNTjWIs+OzjHDrA/ivc A2KA== X-Gm-Message-State: AC+VfDx70xEnnIZ38DDburIL7DK1p+eeGy8dHjXTRXzIWpkp+6VQMK5K gcuJOp4IprZ+JCmgo5OcENc= X-Google-Smtp-Source: ACHHUZ4fKnSuVlprYtWMiqysn5f2VA+PJ55bhXLl+JTYwbJxQpJ17qCGbx2gEAsv8+8GLejR/TMFxQ== X-Received: by 2002:a25:6982:0:b0:ba8:1c9e:c77f with SMTP id e124-20020a256982000000b00ba81c9ec77fmr9956027ybc.22.1687467496585; Thu, 22 Jun 2023 13:58:16 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:16 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 10/33] mm: Convert pmd_ptlock_free() to use ptdescs Date: Thu, 22 Jun 2023 13:57:22 -0700 Message-Id: <20230622205745.79707-11-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org This removes some direct accesses to struct page, working towards splitting out struct ptdesc from struct page. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- include/linux/mm.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 4af424e4015a..0221675e4dc5 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2934,12 +2934,12 @@ static inline bool pmd_ptlock_init(struct ptdesc *ptdesc) return ptlock_init(ptdesc); } -static inline void pmd_ptlock_free(struct page *page) +static inline void pmd_ptlock_free(struct ptdesc *ptdesc) { #ifdef CONFIG_TRANSPARENT_HUGEPAGE - VM_BUG_ON_PAGE(page->pmd_huge_pte, page); + VM_BUG_ON_PAGE(ptdesc->pmd_huge_pte, ptdesc_page(ptdesc)); #endif - ptlock_free(page); + ptlock_free(ptdesc_page(ptdesc)); } #define pmd_huge_pte(mm, pmd) (pmd_ptdesc(pmd)->pmd_huge_pte) @@ -2952,7 +2952,7 @@ static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd) } static inline bool pmd_ptlock_init(struct ptdesc *ptdesc) { return true; } -static inline void pmd_ptlock_free(struct page *page) {} +static inline void pmd_ptlock_free(struct ptdesc *ptdesc) {} #define pmd_huge_pte(mm, pmd) ((mm)->pmd_huge_pte) @@ -2976,7 +2976,7 @@ static inline bool pgtable_pmd_page_ctor(struct page *page) static inline void pgtable_pmd_page_dtor(struct page *page) { - pmd_ptlock_free(page); + pmd_ptlock_free(page_ptdesc(page)); __ClearPageTable(page); dec_lruvec_page_state(page, NR_PAGETABLE); } From patchwork Thu Jun 22 20:57:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289707 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC0A5EB64DC for ; Thu, 22 Jun 2023 20:59:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231411AbjFVU7n (ORCPT ); Thu, 22 Jun 2023 16:59:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231515AbjFVU7I (ORCPT ); Thu, 22 Jun 2023 16:59:08 -0400 Received: from mail-yw1-x1134.google.com (mail-yw1-x1134.google.com [IPv6:2607:f8b0:4864:20::1134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 292812129; Thu, 22 Jun 2023 13:58:37 -0700 (PDT) Received: by mail-yw1-x1134.google.com with SMTP id 00721157ae682-5728df0a7d9so67493717b3.1; Thu, 22 Jun 2023 13:58:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467498; x=1690059498; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=bhgUYiKwQSwYMGFv9d1r56wjiuPfdLCT9N5JwdJpvSY=; b=IkBs/PpafQMwMb5+bV+TjhgBJMISrd3r9Ehxv0D4bga5hDCjsodC2JnFe5fw5CuuNh oXzvywchS02bgspv2vVMsLaNaJfhQqRd4zMAT9dIGzvPtgGebpRn3vizNbCCeH4kxu0g TyHgRtXbQw9QJenBGoSSN+LcKZYEWvqLZfshqBtx5IJouxvVity8IJ3BMNOIhoxk8spN JqRw951qgrZvKDiFAsIL9Ao//k8BkssPPj/JxKTcUCZ9IjeC8TdTUdZgtY4aRKAk9cjf OLinZRYVomzL7Or7UYL6bwPiJppfDFOL1vHSgfsuBpqKRMQaWBk81ZwgHtszBi4jTAEe xuMQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467498; x=1690059498; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=bhgUYiKwQSwYMGFv9d1r56wjiuPfdLCT9N5JwdJpvSY=; b=ZR5pQ7717Xj3lHF4J0in83GojUmL7UCVQeD01QsGnRsvG+hqXZ56ZBdfLYpNTDsdtJ NachJYrAH8zXcf6fgkrzhRxGB6awgPdKYdfMonKTlG52tEmpLVP38oqAS0N0BopvLpho KNI5TZQimb6P4ZXmbkPmgk2GXmHY9RCS4G/4BwdrNmLLqTR0004ZPcgj99Db+yKS5OXD 3HOgssnus/wtTAk0yfeqnK45cpK3zRvQNzLjkkmhqdEPgfN3/aNHzE5BU8I4B4VUaz4D myb3RnOoN0RSnlAvIU1H+twJ+yl1TN8sqQ0aGNbnyjWg244phubqoVJ0XTqzI+rNZP/A uw8g== X-Gm-Message-State: AC+VfDzxAgzzRYrnlytgGRHF99XokPQsmzNobLsWRSE/vNkMaBIrldG8 T5hrEh/lOyyXVTZwzy7jJSg= X-Google-Smtp-Source: ACHHUZ7Pa6VOZ8zc9ZXGMhVrxtFlOQ5CfM1HOMla01BhywdpE01k0n5trNDAUGdHgqy9w/StTvGJbA== X-Received: by 2002:a25:aaa9:0:b0:ba8:66fb:dd86 with SMTP id t38-20020a25aaa9000000b00ba866fbdd86mr17182535ybi.25.1687467498635; Thu, 22 Jun 2023 13:58:18 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:18 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 11/33] mm: Convert ptlock_free() to use ptdescs Date: Thu, 22 Jun 2023 13:57:23 -0700 Message-Id: <20230622205745.79707-12-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org This removes some direct accesses to struct page, working towards splitting out struct ptdesc from struct page. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- include/linux/mm.h | 10 +++++----- mm/memory.c | 4 ++-- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 0221675e4dc5..69e6d6696c44 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2799,7 +2799,7 @@ static inline void pagetable_free(struct ptdesc *pt) #if ALLOC_SPLIT_PTLOCKS void __init ptlock_cache_init(void); bool ptlock_alloc(struct ptdesc *ptdesc); -extern void ptlock_free(struct page *page); +void ptlock_free(struct ptdesc *ptdesc); static inline spinlock_t *ptlock_ptr(struct ptdesc *ptdesc) { @@ -2815,7 +2815,7 @@ static inline bool ptlock_alloc(struct ptdesc *ptdesc) return true; } -static inline void ptlock_free(struct page *page) +static inline void ptlock_free(struct ptdesc *ptdesc) { } @@ -2856,7 +2856,7 @@ static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd) } static inline void ptlock_cache_init(void) {} static inline bool ptlock_init(struct ptdesc *ptdesc) { return true; } -static inline void ptlock_free(struct page *page) {} +static inline void ptlock_free(struct ptdesc *ptdesc) {} #endif /* USE_SPLIT_PTE_PTLOCKS */ static inline bool pgtable_pte_page_ctor(struct page *page) @@ -2870,7 +2870,7 @@ static inline bool pgtable_pte_page_ctor(struct page *page) static inline void pgtable_pte_page_dtor(struct page *page) { - ptlock_free(page); + ptlock_free(page_ptdesc(page)); __ClearPageTable(page); dec_lruvec_page_state(page, NR_PAGETABLE); } @@ -2939,7 +2939,7 @@ static inline void pmd_ptlock_free(struct ptdesc *ptdesc) #ifdef CONFIG_TRANSPARENT_HUGEPAGE VM_BUG_ON_PAGE(ptdesc->pmd_huge_pte, ptdesc_page(ptdesc)); #endif - ptlock_free(ptdesc_page(ptdesc)); + ptlock_free(ptdesc); } #define pmd_huge_pte(mm, pmd) (pmd_ptdesc(pmd)->pmd_huge_pte) diff --git a/mm/memory.c b/mm/memory.c index 2ff14f50c7b3..8743aef6095b 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -5931,8 +5931,8 @@ bool ptlock_alloc(struct ptdesc *ptdesc) return true; } -void ptlock_free(struct page *page) +void ptlock_free(struct ptdesc *ptdesc) { - kmem_cache_free(page_ptl_cachep, page->ptl); + kmem_cache_free(page_ptl_cachep, ptdesc->ptl); } #endif From patchwork Thu Jun 22 20:57:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289708 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EBF32EB64DD for ; Thu, 22 Jun 2023 21:00:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231523AbjFVVAN (ORCPT ); Thu, 22 Jun 2023 17:00:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49630 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231557AbjFVU7U (ORCPT ); Thu, 22 Jun 2023 16:59:20 -0400 Received: from mail-oo1-xc34.google.com (mail-oo1-xc34.google.com [IPv6:2607:f8b0:4864:20::c34]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A334D26BD; Thu, 22 Jun 2023 13:58:38 -0700 (PDT) Received: by mail-oo1-xc34.google.com with SMTP id 006d021491bc7-55e299e1d02so4613620eaf.1; Thu, 22 Jun 2023 13:58:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467501; x=1690059501; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=RnNdr5PDFTKJu1h5zX1p1xVUKJvhUfKvVUh/w7ZbrdI=; b=RozEvIvVOP2VqVYYMWGzDNL6CpsXTnGXlp/+8t0w3BlD0JmgE5T0sEFoPJ6ld3NgrT bo4deZV9iKOusMQ4leLcL/PwL7QvpCQol+1I1GDFuH17XhvWiV9F9j1adtGOARy9Hha6 3RGKMSONQqhzWt/kDmWTnPMrNJ63EExn/gif2mwqScqJ0/yA9eOZVrNV6N0d1si+/PRm WBpjPrumaScaXS+oAuKW5qjU1zlQ2w0x0jfPY5Gm7PSjCaEQ+p7K8a/NRyFlUYxCrD6N J99EeDDjbETqur6Uq9P5kOnzRuhiB5K690PgOVUOJzS9Q8J6CLKu6wMbAbv6pVzbEVQk Y9LA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467501; x=1690059501; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=RnNdr5PDFTKJu1h5zX1p1xVUKJvhUfKvVUh/w7ZbrdI=; b=BoDxFNjBzypiKSwPmEF8VGZdyv/zLGFe1qtNkQEJC2qtZu2QEwlZ2optKBHQlv8yV/ gcwzuMnk4ZmnZtGY8ruWP2HTimHzguTZKT/y7DbM8PDYUFLAl7xjbyeGGHGsHyob8e/8 lDHxjexfR3QYiijfC5NnM6sXwBFXDGxTUipPNv5nnOJN/Mq1pIcvjrppocXsMksCUGk6 sNjLzHbLgXs2KxdxYx42dohbGbbvn4DzMgMdH3rBzSZOgVkNfd6vv5rbZc+jp1SDe4Hl OiHvKBjyWzZRtdbIdZAGsN5YujL+Y4nc5r+jdwAiIRrddBPyTEDhr0FbpN2mR9HlbvVb Y8/w== X-Gm-Message-State: AC+VfDzrKH/M0/Cw71JqePQrjHkT4en3+fotey6QPPXgKjgR0Ny2hSJZ dPdVAb2jFbhktPB4wqTu9EM= X-Google-Smtp-Source: ACHHUZ69lonjyuyFM3x/i0CqMLsv9C2vXMWoj4oQ2M7sud29qozQJHPP5PISfmTicbDCzcNZpP0hng== X-Received: by 2002:a05:6358:c114:b0:12b:cdd6:9661 with SMTP id fh20-20020a056358c11400b0012bcdd69661mr14337984rwb.13.1687467500803; Thu, 22 Jun 2023 13:58:20 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:20 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 12/33] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Date: Thu, 22 Jun 2023 13:57:24 -0700 Message-Id: <20230622205745.79707-13-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Create pagetable_pte_ctor(), pagetable_pmd_ctor(), pagetable_pte_dtor(), and pagetable_pmd_dtor() and make the original pgtable constructor/destructors wrappers. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- include/linux/mm.h | 56 ++++++++++++++++++++++++++++++++++------------ 1 file changed, 42 insertions(+), 14 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 69e6d6696c44..356e79984cf9 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2859,20 +2859,34 @@ static inline bool ptlock_init(struct ptdesc *ptdesc) { return true; } static inline void ptlock_free(struct ptdesc *ptdesc) {} #endif /* USE_SPLIT_PTE_PTLOCKS */ -static inline bool pgtable_pte_page_ctor(struct page *page) +static inline bool pagetable_pte_ctor(struct ptdesc *ptdesc) { - if (!ptlock_init(page_ptdesc(page))) + struct folio *folio = ptdesc_folio(ptdesc); + + if (!ptlock_init(ptdesc)) return false; - __SetPageTable(page); - inc_lruvec_page_state(page, NR_PAGETABLE); + __folio_set_pgtable(folio); + lruvec_stat_add_folio(folio, NR_PAGETABLE); return true; } +static inline bool pgtable_pte_page_ctor(struct page *page) +{ + return pagetable_pte_ctor(page_ptdesc(page)); +} + +static inline void pagetable_pte_dtor(struct ptdesc *ptdesc) +{ + struct folio *folio = ptdesc_folio(ptdesc); + + ptlock_free(ptdesc); + __folio_clear_pgtable(folio); + lruvec_stat_sub_folio(folio, NR_PAGETABLE); +} + static inline void pgtable_pte_page_dtor(struct page *page) { - ptlock_free(page_ptdesc(page)); - __ClearPageTable(page); - dec_lruvec_page_state(page, NR_PAGETABLE); + pagetable_pte_dtor(page_ptdesc(page)); } pte_t *__pte_offset_map(pmd_t *pmd, unsigned long addr, pmd_t *pmdvalp); @@ -2965,20 +2979,34 @@ static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd) return ptl; } -static inline bool pgtable_pmd_page_ctor(struct page *page) +static inline bool pagetable_pmd_ctor(struct ptdesc *ptdesc) { - if (!pmd_ptlock_init(page_ptdesc(page))) + struct folio *folio = ptdesc_folio(ptdesc); + + if (!pmd_ptlock_init(ptdesc)) return false; - __SetPageTable(page); - inc_lruvec_page_state(page, NR_PAGETABLE); + __folio_set_pgtable(folio); + lruvec_stat_add_folio(folio, NR_PAGETABLE); return true; } +static inline bool pgtable_pmd_page_ctor(struct page *page) +{ + return pagetable_pmd_ctor(page_ptdesc(page)); +} + +static inline void pagetable_pmd_dtor(struct ptdesc *ptdesc) +{ + struct folio *folio = ptdesc_folio(ptdesc); + + pmd_ptlock_free(ptdesc); + __folio_clear_pgtable(folio); + lruvec_stat_sub_folio(folio, NR_PAGETABLE); +} + static inline void pgtable_pmd_page_dtor(struct page *page) { - pmd_ptlock_free(page_ptdesc(page)); - __ClearPageTable(page); - dec_lruvec_page_state(page, NR_PAGETABLE); + pagetable_pmd_dtor(page_ptdesc(page)); } /* From patchwork Thu Jun 22 20:57:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289709 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85044EB64DC for ; Thu, 22 Jun 2023 21:00:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231755AbjFVVA0 (ORCPT ); Thu, 22 Jun 2023 17:00:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49694 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231570AbjFVU7Y (ORCPT ); Thu, 22 Jun 2023 16:59:24 -0400 Received: from mail-vs1-xe2b.google.com (mail-vs1-xe2b.google.com [IPv6:2607:f8b0:4864:20::e2b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A2C422139; Thu, 22 Jun 2023 13:58:44 -0700 (PDT) Received: by mail-vs1-xe2b.google.com with SMTP id ada2fe7eead31-440ad8ea514so2000324137.2; Thu, 22 Jun 2023 13:58:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467503; x=1690059503; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=JO1uHT8He+Av5NkiVAKHRKBK8X3I83QFDr1CeWVeYZ4=; b=ABncV8bcPnEx/V5hIZt3PK/aoJ0qqGZh9rD70FXARHI59ktAXJSvC9QEDtQfXkDAn0 gPvKhKRqJ9/P2llt1JLv5/rvvesIO3IE1AWOpUXp6uiTrsNqZThkWa1zouEa3Mbcsav1 276BRnzfwGIqQvVb7zax3PpvYwF7X1EO6UUT2ec+v+o19Kw7redekwq60WrGr9r5dly5 iwJZLpkxzloILO701IKBKyiXRNIoFjjYDVD07RCmfWhhF52WoxSilofbL2vgDoXDMBKs Q1/htIPwHXAwm3A3T5s4rqwem2be0Q53PLHeqtpDT4d2+OmrVTF4tJkx6cGzhA/nmIID QsiA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467503; x=1690059503; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=JO1uHT8He+Av5NkiVAKHRKBK8X3I83QFDr1CeWVeYZ4=; b=STAot1XPn6Of72isibIBgFDXPjGiLucbhuZoZe+a9HV63Kbz/q0RV2bG0kvVSB6U1N RaqwmdgV6AyJ3cy8mIRyyTmwcKQywt4A3ai+bQjS1ye2F7/Bwv6JtydrI/7qgGdLA39a yWZ9q9JmkdyZNpJC7esAtFod8fCEHsgdrx3iT5dAzbcP6BSCWOv35P1+l643xK2VODEA KSIUTqHMlKIcbB/XuNlC9mwyogS04Xy6MAEZmjQx6GsLOlJCm0pH0ULodUx89chQbZxu vcdcWXtXXevbj6zw6i7gQ+TYQeWNNcIe75FixglUeEtGkKM/K71aFT2WTHCAqkopHezI JV+w== X-Gm-Message-State: AC+VfDzD3j31vPFWlORUyumpEsoGbbO38XSlsdmUJJT7B7vO9DQODAMg mhT/1gAD9NeqkfGTuEfMFh4= X-Google-Smtp-Source: ACHHUZ6J7vEsrvtjtX6BrmtaxKuDLa21w+gHXjjUWBOcKrlZJaxY4XlKKEFhMBRF8kX2fbwnoUz2mw== X-Received: by 2002:a67:ef81:0:b0:440:8ac0:ef57 with SMTP id r1-20020a67ef81000000b004408ac0ef57mr9038809vsp.24.1687467502842; Thu, 22 Jun 2023 13:58:22 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:22 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Christophe Leroy , Mike Rapoport Subject: [PATCH v5 13/33] powerpc: Convert various functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:25 -0700 Message-Id: <20230622205745.79707-14-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org In order to split struct ptdesc from struct page, convert various functions to use ptdescs. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/powerpc/mm/book3s64/mmu_context.c | 10 +++--- arch/powerpc/mm/book3s64/pgtable.c | 32 +++++++++--------- arch/powerpc/mm/pgtable-frag.c | 46 +++++++++++++------------- 3 files changed, 44 insertions(+), 44 deletions(-) diff --git a/arch/powerpc/mm/book3s64/mmu_context.c b/arch/powerpc/mm/book3s64/mmu_context.c index c766e4c26e42..1715b07c630c 100644 --- a/arch/powerpc/mm/book3s64/mmu_context.c +++ b/arch/powerpc/mm/book3s64/mmu_context.c @@ -246,15 +246,15 @@ static void destroy_contexts(mm_context_t *ctx) static void pmd_frag_destroy(void *pmd_frag) { int count; - struct page *page; + struct ptdesc *ptdesc; - page = virt_to_page(pmd_frag); + ptdesc = virt_to_ptdesc(pmd_frag); /* drop all the pending references */ count = ((unsigned long)pmd_frag & ~PAGE_MASK) >> PMD_FRAG_SIZE_SHIFT; /* We allow PTE_FRAG_NR fragments from a PTE page */ - if (atomic_sub_and_test(PMD_FRAG_NR - count, &page->pt_frag_refcount)) { - pgtable_pmd_page_dtor(page); - __free_page(page); + if (atomic_sub_and_test(PMD_FRAG_NR - count, &ptdesc->pt_frag_refcount)) { + pagetable_pmd_dtor(ptdesc); + pagetable_free(ptdesc); } } diff --git a/arch/powerpc/mm/book3s64/pgtable.c b/arch/powerpc/mm/book3s64/pgtable.c index 85c84e89e3ea..1212deeabe15 100644 --- a/arch/powerpc/mm/book3s64/pgtable.c +++ b/arch/powerpc/mm/book3s64/pgtable.c @@ -306,22 +306,22 @@ static pmd_t *get_pmd_from_cache(struct mm_struct *mm) static pmd_t *__alloc_for_pmdcache(struct mm_struct *mm) { void *ret = NULL; - struct page *page; + struct ptdesc *ptdesc; gfp_t gfp = GFP_KERNEL_ACCOUNT | __GFP_ZERO; if (mm == &init_mm) gfp &= ~__GFP_ACCOUNT; - page = alloc_page(gfp); - if (!page) + ptdesc = pagetable_alloc(gfp, 0); + if (!ptdesc) return NULL; - if (!pgtable_pmd_page_ctor(page)) { - __free_pages(page, 0); + if (!pagetable_pmd_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - atomic_set(&page->pt_frag_refcount, 1); + atomic_set(&ptdesc->pt_frag_refcount, 1); - ret = page_address(page); + ret = ptdesc_address(ptdesc); /* * if we support only one fragment just return the * allocated page. @@ -331,12 +331,12 @@ static pmd_t *__alloc_for_pmdcache(struct mm_struct *mm) spin_lock(&mm->page_table_lock); /* - * If we find pgtable_page set, we return + * If we find ptdesc_page set, we return * the allocated page with single fragment * count. */ if (likely(!mm->context.pmd_frag)) { - atomic_set(&page->pt_frag_refcount, PMD_FRAG_NR); + atomic_set(&ptdesc->pt_frag_refcount, PMD_FRAG_NR); mm->context.pmd_frag = ret + PMD_FRAG_SIZE; } spin_unlock(&mm->page_table_lock); @@ -357,15 +357,15 @@ pmd_t *pmd_fragment_alloc(struct mm_struct *mm, unsigned long vmaddr) void pmd_fragment_free(unsigned long *pmd) { - struct page *page = virt_to_page(pmd); + struct ptdesc *ptdesc = virt_to_ptdesc(pmd); - if (PageReserved(page)) - return free_reserved_page(page); + if (pagetable_is_reserved(ptdesc)) + return free_reserved_ptdesc(ptdesc); - BUG_ON(atomic_read(&page->pt_frag_refcount) <= 0); - if (atomic_dec_and_test(&page->pt_frag_refcount)) { - pgtable_pmd_page_dtor(page); - __free_page(page); + BUG_ON(atomic_read(&ptdesc->pt_frag_refcount) <= 0); + if (atomic_dec_and_test(&ptdesc->pt_frag_refcount)) { + pagetable_pmd_dtor(ptdesc); + pagetable_free(ptdesc); } } diff --git a/arch/powerpc/mm/pgtable-frag.c b/arch/powerpc/mm/pgtable-frag.c index 20652daa1d7e..8961f1540209 100644 --- a/arch/powerpc/mm/pgtable-frag.c +++ b/arch/powerpc/mm/pgtable-frag.c @@ -18,15 +18,15 @@ void pte_frag_destroy(void *pte_frag) { int count; - struct page *page; + struct ptdesc *ptdesc; - page = virt_to_page(pte_frag); + ptdesc = virt_to_ptdesc(pte_frag); /* drop all the pending references */ count = ((unsigned long)pte_frag & ~PAGE_MASK) >> PTE_FRAG_SIZE_SHIFT; /* We allow PTE_FRAG_NR fragments from a PTE page */ - if (atomic_sub_and_test(PTE_FRAG_NR - count, &page->pt_frag_refcount)) { - pgtable_pte_page_dtor(page); - __free_page(page); + if (atomic_sub_and_test(PTE_FRAG_NR - count, &ptdesc->pt_frag_refcount)) { + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } } @@ -55,25 +55,25 @@ static pte_t *get_pte_from_cache(struct mm_struct *mm) static pte_t *__alloc_for_ptecache(struct mm_struct *mm, int kernel) { void *ret = NULL; - struct page *page; + struct ptdesc *ptdesc; if (!kernel) { - page = alloc_page(PGALLOC_GFP | __GFP_ACCOUNT); - if (!page) + ptdesc = pagetable_alloc(PGALLOC_GFP | __GFP_ACCOUNT, 0); + if (!ptdesc) return NULL; - if (!pgtable_pte_page_ctor(page)) { - __free_page(page); + if (!pagetable_pte_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } } else { - page = alloc_page(PGALLOC_GFP); - if (!page) + ptdesc = pagetable_alloc(PGALLOC_GFP, 0); + if (!ptdesc) return NULL; } - atomic_set(&page->pt_frag_refcount, 1); + atomic_set(&ptdesc->pt_frag_refcount, 1); - ret = page_address(page); + ret = ptdesc_address(ptdesc); /* * if we support only one fragment just return the * allocated page. @@ -82,12 +82,12 @@ static pte_t *__alloc_for_ptecache(struct mm_struct *mm, int kernel) return ret; spin_lock(&mm->page_table_lock); /* - * If we find pgtable_page set, we return + * If we find ptdesc_page set, we return * the allocated page with single fragment * count. */ if (likely(!pte_frag_get(&mm->context))) { - atomic_set(&page->pt_frag_refcount, PTE_FRAG_NR); + atomic_set(&ptdesc->pt_frag_refcount, PTE_FRAG_NR); pte_frag_set(&mm->context, ret + PTE_FRAG_SIZE); } spin_unlock(&mm->page_table_lock); @@ -108,15 +108,15 @@ pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel) void pte_fragment_free(unsigned long *table, int kernel) { - struct page *page = virt_to_page(table); + struct ptdesc *ptdesc = virt_to_ptdesc(table); - if (PageReserved(page)) - return free_reserved_page(page); + if (pagetable_is_reserved(ptdesc)) + return free_reserved_ptdesc(ptdesc); - BUG_ON(atomic_read(&page->pt_frag_refcount) <= 0); - if (atomic_dec_and_test(&page->pt_frag_refcount)) { + BUG_ON(atomic_read(&ptdesc->pt_frag_refcount) <= 0); + if (atomic_dec_and_test(&ptdesc->pt_frag_refcount)) { if (!kernel) - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } } From patchwork Thu Jun 22 20:57:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289710 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D27EFEB64DA for ; Thu, 22 Jun 2023 21:00:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231787AbjFVVAc (ORCPT ); Thu, 22 Jun 2023 17:00:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231593AbjFVU7Z (ORCPT ); Thu, 22 Jun 2023 16:59:25 -0400 Received: from mail-yb1-xb32.google.com (mail-yb1-xb32.google.com [IPv6:2607:f8b0:4864:20::b32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EFF6D2688; Thu, 22 Jun 2023 13:58:48 -0700 (PDT) Received: by mail-yb1-xb32.google.com with SMTP id 3f1490d57ef6-bd61dd9a346so7344212276.2; Thu, 22 Jun 2023 13:58:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467505; x=1690059505; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=sltDOqqNfHEtvz8jLXUjW/r74sJCuRKUMVTEbSHBWCo=; b=kPeKxS6xjGfz9AlFKXBrS7k/oMitniLbJZydJSL7P9mRWo4eZ6+mhZ0RfQ/xgzRpRR shlp6IDjxc1Zi54v2Szw/IWPs7h13yhnqa4+SLs+JrO4xub++cDoiwuSfK32oAECXVqr +0aImmxu0MO1NlcDWPWE1t/GfM5gpYghSOx5OplyS42V7eE66ajuWsZpNSBe+PsYPrqi VcjBr8bDpFWaHKuuoQ+xJvxJpfPEC5IOcvI0xVrUQ3Ge8p6hulYzFPiT6b0ht75dwKoi lPIDcih2cDzp/fXel61I0gphUyR5giMIqEnrUx6FuLn8RjvsQYvRr7lV2J95H++gAjzy cNtw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467505; x=1690059505; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=sltDOqqNfHEtvz8jLXUjW/r74sJCuRKUMVTEbSHBWCo=; b=eL33KLMvjprK7KQyTYSyK21YofVwDQTuNStalbXJPEZgT8OH2qVroPYy6BxTwAeGmS upQRjjNk39T6AzhzG8Srzz9I2NMhlXiymrCKuYfSui/Nq4ZfmKEJ8Fme7YeCNioFjwUE l67IbBupIzMxEDQZUpKmLjnKwddM1vcUsJhkQwP1/HJoSO78rOD6xh4fqL+oI6XHC/5T fJ5Hs/QpZIQb7e+IT+MTYpEpWEMWGNByLH8nwopcgeWr6s9jnsqEEo5I0cllLYWZ4Lv2 n/HjjdX9R83gW6voHDVI+WLvHsDYiT3ATZZpfnXE3HjBrO3sdZdGOWcTx0Ok3AeOW2YF kp6A== X-Gm-Message-State: AC+VfDz00gahJntXIcZoyalLf9rNOWSA2/wW93Ba9dz0kNfiMU/oblqs sXH0ZO7aXPR7YgW3Xz6TAaE= X-Google-Smtp-Source: ACHHUZ79c/uNHhonLkSvxldyR2pWp+AvCJ2e1p2TKGM3TkHKm3UmTC7VE9FYRHtJjJMm9DuNY9PrUg== X-Received: by 2002:a25:c057:0:b0:ba7:db6c:c0ee with SMTP id c84-20020a25c057000000b00ba7db6cc0eemr14608074ybf.6.1687467504871; Thu, 22 Jun 2023 13:58:24 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:24 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Dave Hansen Subject: [PATCH v5 14/33] x86: Convert various functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:26 -0700 Message-Id: <20230622205745.79707-15-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org In order to split struct ptdesc from struct page, convert various functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) --- arch/x86/mm/pgtable.c | 47 ++++++++++++++++++++++++++----------------- 1 file changed, 28 insertions(+), 19 deletions(-) diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 15a8009a4480..d3a93e8766ee 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -52,7 +52,7 @@ early_param("userpte", setup_userpte); void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte) { - pgtable_pte_page_dtor(pte); + pagetable_pte_dtor(page_ptdesc(pte)); paravirt_release_pte(page_to_pfn(pte)); paravirt_tlb_remove_table(tlb, pte); } @@ -60,7 +60,7 @@ void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte) #if CONFIG_PGTABLE_LEVELS > 2 void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd) { - struct page *page = virt_to_page(pmd); + struct ptdesc *ptdesc = virt_to_ptdesc(pmd); paravirt_release_pmd(__pa(pmd) >> PAGE_SHIFT); /* * NOTE! For PAE, any changes to the top page-directory-pointer-table @@ -69,8 +69,8 @@ void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd) #ifdef CONFIG_X86_PAE tlb->need_flush_all = 1; #endif - pgtable_pmd_page_dtor(page); - paravirt_tlb_remove_table(tlb, page); + pagetable_pmd_dtor(ptdesc); + paravirt_tlb_remove_table(tlb, ptdesc_page(ptdesc)); } #if CONFIG_PGTABLE_LEVELS > 3 @@ -92,16 +92,16 @@ void ___p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d) static inline void pgd_list_add(pgd_t *pgd) { - struct page *page = virt_to_page(pgd); + struct ptdesc *ptdesc = virt_to_ptdesc(pgd); - list_add(&page->lru, &pgd_list); + list_add(&ptdesc->pt_list, &pgd_list); } static inline void pgd_list_del(pgd_t *pgd) { - struct page *page = virt_to_page(pgd); + struct ptdesc *ptdesc = virt_to_ptdesc(pgd); - list_del(&page->lru); + list_del(&ptdesc->pt_list); } #define UNSHARED_PTRS_PER_PGD \ @@ -112,12 +112,12 @@ static inline void pgd_list_del(pgd_t *pgd) static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm) { - virt_to_page(pgd)->pt_mm = mm; + virt_to_ptdesc(pgd)->pt_mm = mm; } struct mm_struct *pgd_page_get_mm(struct page *page) { - return page->pt_mm; + return page_ptdesc(page)->pt_mm; } static void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) @@ -213,11 +213,14 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) static void free_pmds(struct mm_struct *mm, pmd_t *pmds[], int count) { int i; + struct ptdesc *ptdesc; for (i = 0; i < count; i++) if (pmds[i]) { - pgtable_pmd_page_dtor(virt_to_page(pmds[i])); - free_page((unsigned long)pmds[i]); + ptdesc = virt_to_ptdesc(pmds[i]); + + pagetable_pmd_dtor(ptdesc); + pagetable_free(ptdesc); mm_dec_nr_pmds(mm); } } @@ -230,18 +233,24 @@ static int preallocate_pmds(struct mm_struct *mm, pmd_t *pmds[], int count) if (mm == &init_mm) gfp &= ~__GFP_ACCOUNT; + gfp &= ~__GFP_HIGHMEM; for (i = 0; i < count; i++) { - pmd_t *pmd = (pmd_t *)__get_free_page(gfp); - if (!pmd) + pmd_t *pmd = NULL; + struct ptdesc *ptdesc = pagetable_alloc(gfp, 0); + + if (!ptdesc) failed = true; - if (pmd && !pgtable_pmd_page_ctor(virt_to_page(pmd))) { - free_page((unsigned long)pmd); - pmd = NULL; + if (ptdesc && !pagetable_pmd_ctor(ptdesc)) { + pagetable_free(ptdesc); + ptdesc = NULL; failed = true; } - if (pmd) + if (ptdesc) { mm_inc_nr_pmds(mm); + pmd = ptdesc_address(ptdesc); + } + pmds[i] = pmd; } @@ -830,7 +839,7 @@ int pud_free_pmd_page(pud_t *pud, unsigned long addr) free_page((unsigned long)pmd_sv); - pgtable_pmd_page_dtor(virt_to_page(pmd)); + pagetable_pmd_dtor(virt_to_ptdesc(pmd)); free_page((unsigned long)pmd); return 1; From patchwork Thu Jun 22 20:57:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289713 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D212CC001E0 for ; Thu, 22 Jun 2023 21:00:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231823AbjFVVAm (ORCPT ); Thu, 22 Jun 2023 17:00:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49346 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231618AbjFVU70 (ORCPT ); Thu, 22 Jun 2023 16:59:26 -0400 Received: from mail-yb1-xb2f.google.com (mail-yb1-xb2f.google.com [IPv6:2607:f8b0:4864:20::b2f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF2C71FF0; Thu, 22 Jun 2023 13:58:52 -0700 (PDT) Received: by mail-yb1-xb2f.google.com with SMTP id 3f1490d57ef6-be30cbe88b3so7455181276.1; Thu, 22 Jun 2023 13:58:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467507; x=1690059507; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=xnT0OuFQgSMPBMpNBMcjRtrAID2j2J/z+99kPRjsdFc=; b=CFniQwJChRQH7765fapkmXvTYUWljBI3etiFy/IUhcwGjAj7vPiGkSjmRv5QF/IAka OSzIYnhvidG2W30wNEZ5XX0rdt2N1cNUzZo7yyO/i1w1j5CkZxRPEL1+1kqS1DupiuCD of7w7SOQo1WDGv4IZmgu6M0YvoyK0T9wAWj4Y6yaoya2aEfQEApVJBV1uDc8gK0oZSL9 nB303dtPPvy7hMOiqU4AC+LnTNiE4NAFn6xNl54ljOLzRvtWHhrA+r1wUq5YflvTwzTI d63+WU9pml8sdEvvWVMLpUd3CQwrXwlZliNmYoxjyDkL0CHEH8mnboeDt3Vd1ElvVRDA F8Vg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467507; x=1690059507; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=xnT0OuFQgSMPBMpNBMcjRtrAID2j2J/z+99kPRjsdFc=; b=K0foVS5/qo7/h3LwyYyZ4SoGcMLRafR51hyQ1Sd/JNy8e/3Wozn6QpfVLmXWS1vX2U Vn0i/6Y90ih0QVV1YAS0dUqHvHr83ao+IURUbXZFXam7YnyVkXHPrvfDE9e+aGyoTUEb QsOxw2/S+pVkr3NJ61Q+InCSDpJ9ZjWnUPB9m2x7aI+CBLyPiQjm3l8haQ5Ov466WACK 86DdZAropPj8LoSG0fh3WH21rhykEFGtV1hHKH0QCGEXQRdINwI5NumhdmmIBmoLLR75 LnuSbENR1Pkm3tQcBIOtrrSKu32F5L6GvMu8v4XKHsSNE88PIU+HYf1xnGpAGZB6jg91 pV6Q== X-Gm-Message-State: AC+VfDw5YXzmkePxUEgdbrNmTcy6DiAZOP94LSifWhHfoIAwJoYnyNNb 7ueYOQrGF0WXx6dx1j0iIZQ= X-Google-Smtp-Source: ACHHUZ6rxA6TM0NHi6rOKcExqb94O0u6Ux1uxCup2OxBwQlj09S9/pS7FVr6lZVUqccEnVqh/TxF7g== X-Received: by 2002:a25:495:0:b0:bc8:2158:63cf with SMTP id 143-20020a250495000000b00bc8215863cfmr14696422ybe.23.1687467506992; Thu, 22 Jun 2023 13:58:26 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:26 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , David Hildenbrand , Claudio Imbrenda , Mike Rapoport Subject: [PATCH v5 15/33] s390: Convert various gmap functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:27 -0700 Message-Id: <20230622205745.79707-16-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org In order to split struct ptdesc from struct page, convert various functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Since we're now using pagetable_free(), set _pt_s390_gaddr (which aliases with page->mapping) to NULL in that function instead. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/s390/mm/gmap.c | 217 +++++++++++++++++++++++--------------------- include/linux/mm.h | 3 + 2 files changed, 117 insertions(+), 103 deletions(-) diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index beb4804d9ca8..8dbe0fdc0e44 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -34,7 +34,7 @@ static struct gmap *gmap_alloc(unsigned long limit) { struct gmap *gmap; - struct page *page; + struct ptdesc *ptdesc; unsigned long *table; unsigned long etype, atype; @@ -67,12 +67,12 @@ static struct gmap *gmap_alloc(unsigned long limit) spin_lock_init(&gmap->guest_table_lock); spin_lock_init(&gmap->shadow_lock); refcount_set(&gmap->ref_count, 1); - page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); - if (!page) + ptdesc = pagetable_alloc(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); + if (!ptdesc) goto out_free; - page->_pt_s390_gaddr = 0; - list_add(&page->lru, &gmap->crst_list); - table = page_to_virt(page); + ptdesc->_pt_s390_gaddr = 0; + list_add(&ptdesc->pt_list, &gmap->crst_list); + table = ptdesc_to_virt(ptdesc); crst_table_init(table, etype); gmap->table = table; gmap->asce = atype | _ASCE_TABLE_LENGTH | @@ -181,25 +181,23 @@ static void gmap_rmap_radix_tree_free(struct radix_tree_root *root) */ static void gmap_free(struct gmap *gmap) { - struct page *page, *next; + struct ptdesc *ptdesc, *next; /* Flush tlb of all gmaps (if not already done for shadows) */ if (!(gmap_is_shadow(gmap) && gmap->removed)) gmap_flush_tlb(gmap); /* Free all segment & region tables. */ - list_for_each_entry_safe(page, next, &gmap->crst_list, lru) { - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); + list_for_each_entry_safe(ptdesc, next, &gmap->crst_list, pt_list) { + pagetable_free(ptdesc); } gmap_radix_tree_free(&gmap->guest_to_host); gmap_radix_tree_free(&gmap->host_to_guest); /* Free additional data for a shadow gmap */ if (gmap_is_shadow(gmap)) { - /* Free all page tables. */ - list_for_each_entry_safe(page, next, &gmap->pt_list, lru) { - page->_pt_s390_gaddr = 0; - page_table_free_pgste(page); + /* Free all ptdesc tables. */ + list_for_each_entry_safe(ptdesc, next, &gmap->pt_list, pt_list) { + page_table_free_pgste(ptdesc_page(ptdesc)); } gmap_rmap_radix_tree_free(&gmap->host_to_rmap); /* Release reference to the parent */ @@ -308,28 +306,27 @@ EXPORT_SYMBOL_GPL(gmap_get_enabled); static int gmap_alloc_table(struct gmap *gmap, unsigned long *table, unsigned long init, unsigned long gaddr) { - struct page *page; + struct ptdesc *ptdesc; unsigned long *new; /* since we dont free the gmap table until gmap_free we can unlock */ - page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); - if (!page) + ptdesc = pagetable_alloc(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); + if (!ptdesc) return -ENOMEM; - new = page_to_virt(page); + new = ptdesc_to_virt(ptdesc); crst_table_init(new, init); spin_lock(&gmap->guest_table_lock); if (*table & _REGION_ENTRY_INVALID) { - list_add(&page->lru, &gmap->crst_list); + list_add(&ptdesc->pt_list, &gmap->crst_list); *table = __pa(new) | _REGION_ENTRY_LENGTH | (*table & _REGION_ENTRY_TYPE_MASK); - page->_pt_s390_gaddr = gaddr; - page = NULL; + ptdesc->_pt_s390_gaddr = gaddr; + ptdesc = NULL; } spin_unlock(&gmap->guest_table_lock); - if (page) { - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); - } + if (ptdesc) + pagetable_free(ptdesc); + return 0; } @@ -341,15 +338,15 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table, */ static unsigned long __gmap_segment_gaddr(unsigned long *entry) { - struct page *page; + struct ptdesc *ptdesc; unsigned long offset, mask; offset = (unsigned long) entry / sizeof(unsigned long); offset = (offset & (PTRS_PER_PMD - 1)) * PMD_SIZE; mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1); - page = virt_to_page((void *)((unsigned long) entry & mask)); + ptdesc = virt_to_ptdesc((void *)((unsigned long) entry & mask)); - return page->_pt_s390_gaddr + offset; + return ptdesc->_pt_s390_gaddr + offset; } /** @@ -1345,6 +1342,7 @@ static void gmap_unshadow_pgt(struct gmap *sg, unsigned long raddr) unsigned long *ste; phys_addr_t sto, pgt; struct page *page; + struct ptdesc *ptdesc; BUG_ON(!gmap_is_shadow(sg)); ste = gmap_table_walk(sg, raddr, 1); /* get segment pointer */ @@ -1358,9 +1356,10 @@ static void gmap_unshadow_pgt(struct gmap *sg, unsigned long raddr) __gmap_unshadow_pgt(sg, raddr, __va(pgt)); /* Free page table */ page = phys_to_page(pgt); - list_del(&page->lru); - page->_pt_s390_gaddr = 0; - page_table_free_pgste(page); + + ptdesc = page_ptdesc(page); + list_del(&ptdesc->pt_list); + page_table_free_pgste(ptdesc_page(ptdesc)); } /** @@ -1374,9 +1373,10 @@ static void gmap_unshadow_pgt(struct gmap *sg, unsigned long raddr) static void __gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr, unsigned long *sgt) { - struct page *page; phys_addr_t pgt; int i; + struct page *page; + struct ptdesc *ptdesc; BUG_ON(!gmap_is_shadow(sg)); for (i = 0; i < _CRST_ENTRIES; i++, raddr += _SEGMENT_SIZE) { @@ -1387,9 +1387,10 @@ static void __gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr, __gmap_unshadow_pgt(sg, raddr, __va(pgt)); /* Free page table */ page = phys_to_page(pgt); - list_del(&page->lru); - page->_pt_s390_gaddr = 0; - page_table_free_pgste(page); + + ptdesc = page_ptdesc(page); + list_del(&ptdesc->pt_list); + page_table_free_pgste(ptdesc_page(ptdesc)); } } @@ -1405,6 +1406,7 @@ static void gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr) unsigned long r3o, *r3e; phys_addr_t sgt; struct page *page; + struct ptdesc *ptdesc; BUG_ON(!gmap_is_shadow(sg)); r3e = gmap_table_walk(sg, raddr, 2); /* get region-3 pointer */ @@ -1418,9 +1420,10 @@ static void gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr) __gmap_unshadow_sgt(sg, raddr, __va(sgt)); /* Free segment table */ page = phys_to_page(sgt); - list_del(&page->lru); - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); + + ptdesc = page_ptdesc(page); + list_del(&ptdesc->pt_list); + pagetable_free(ptdesc); } /** @@ -1434,9 +1437,10 @@ static void gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr) static void __gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr, unsigned long *r3t) { - struct page *page; phys_addr_t sgt; int i; + struct page *page; + struct ptdesc *ptdesc; BUG_ON(!gmap_is_shadow(sg)); for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION3_SIZE) { @@ -1447,9 +1451,10 @@ static void __gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr, __gmap_unshadow_sgt(sg, raddr, __va(sgt)); /* Free segment table */ page = phys_to_page(sgt); - list_del(&page->lru); - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); + + ptdesc = page_ptdesc(page); + list_del(&ptdesc->pt_list); + pagetable_free(ptdesc); } } @@ -1465,6 +1470,7 @@ static void gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr) unsigned long r2o, *r2e; phys_addr_t r3t; struct page *page; + struct ptdesc *ptdesc; BUG_ON(!gmap_is_shadow(sg)); r2e = gmap_table_walk(sg, raddr, 3); /* get region-2 pointer */ @@ -1478,9 +1484,10 @@ static void gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr) __gmap_unshadow_r3t(sg, raddr, __va(r3t)); /* Free region 3 table */ page = phys_to_page(r3t); - list_del(&page->lru); - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); + + ptdesc = page_ptdesc(page); + list_del(&ptdesc->pt_list); + pagetable_free(ptdesc); } /** @@ -1495,8 +1502,9 @@ static void __gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr, unsigned long *r2t) { phys_addr_t r3t; - struct page *page; int i; + struct page *page; + struct ptdesc *ptdesc; BUG_ON(!gmap_is_shadow(sg)); for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION2_SIZE) { @@ -1507,9 +1515,10 @@ static void __gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr, __gmap_unshadow_r3t(sg, raddr, __va(r3t)); /* Free region 3 table */ page = phys_to_page(r3t); - list_del(&page->lru); - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); + + ptdesc = page_ptdesc(page); + list_del(&ptdesc->pt_list); + pagetable_free(ptdesc); } } @@ -1525,6 +1534,7 @@ static void gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr) unsigned long r1o, *r1e; struct page *page; phys_addr_t r2t; + struct ptdesc *ptdesc; BUG_ON(!gmap_is_shadow(sg)); r1e = gmap_table_walk(sg, raddr, 4); /* get region-1 pointer */ @@ -1538,9 +1548,10 @@ static void gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr) __gmap_unshadow_r2t(sg, raddr, __va(r2t)); /* Free region 2 table */ page = phys_to_page(r2t); - list_del(&page->lru); - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); + + ptdesc = page_ptdesc(page); + list_del(&ptdesc->pt_list); + pagetable_free(ptdesc); } /** @@ -1558,6 +1569,7 @@ static void __gmap_unshadow_r1t(struct gmap *sg, unsigned long raddr, struct page *page; phys_addr_t r2t; int i; + struct ptdesc *ptdesc; BUG_ON(!gmap_is_shadow(sg)); asce = __pa(r1t) | _ASCE_TYPE_REGION1; @@ -1571,9 +1583,10 @@ static void __gmap_unshadow_r1t(struct gmap *sg, unsigned long raddr, r1t[i] = _REGION1_ENTRY_EMPTY; /* Free region 2 table */ page = phys_to_page(r2t); - list_del(&page->lru); - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); + + ptdesc = page_ptdesc(page); + list_del(&ptdesc->pt_list); + pagetable_free(ptdesc); } } @@ -1770,18 +1783,18 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t, unsigned long raddr, origin, offset, len; unsigned long *table; phys_addr_t s_r2t; - struct page *page; + struct ptdesc *ptdesc; int rc; BUG_ON(!gmap_is_shadow(sg)); /* Allocate a shadow region second table */ - page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); - if (!page) + ptdesc = pagetable_alloc(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); + if (!ptdesc) return -ENOMEM; - page->_pt_s390_gaddr = r2t & _REGION_ENTRY_ORIGIN; + ptdesc->_pt_s390_gaddr = r2t & _REGION_ENTRY_ORIGIN; if (fake) - page->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; - s_r2t = page_to_phys(page); + ptdesc->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; + s_r2t = page_to_phys(ptdesc_page(ptdesc)); /* Install shadow region second table */ spin_lock(&sg->guest_table_lock); table = gmap_table_walk(sg, saddr, 4); /* get region-1 pointer */ @@ -1802,7 +1815,7 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t, _REGION_ENTRY_TYPE_R1 | _REGION_ENTRY_INVALID; if (sg->edat_level >= 1) *table |= (r2t & _REGION_ENTRY_PROTECT); - list_add(&page->lru, &sg->crst_list); + list_add(&ptdesc->pt_list, &sg->crst_list); if (fake) { /* nothing to protect for fake tables */ *table &= ~_REGION_ENTRY_INVALID; @@ -1830,8 +1843,7 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t, return rc; out_free: spin_unlock(&sg->guest_table_lock); - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); + pagetable_free(ptdesc); return rc; } EXPORT_SYMBOL_GPL(gmap_shadow_r2t); @@ -1855,18 +1867,18 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t, unsigned long raddr, origin, offset, len; unsigned long *table; phys_addr_t s_r3t; - struct page *page; + struct ptdesc *ptdesc; int rc; BUG_ON(!gmap_is_shadow(sg)); /* Allocate a shadow region second table */ - page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); - if (!page) + ptdesc = pagetable_alloc(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); + if (!ptdesc) return -ENOMEM; - page->_pt_s390_gaddr = r3t & _REGION_ENTRY_ORIGIN; + ptdesc->_pt_s390_gaddr = r3t & _REGION_ENTRY_ORIGIN; if (fake) - page->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; - s_r3t = page_to_phys(page); + ptdesc->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; + s_r3t = page_to_phys(ptdesc_page(ptdesc)); /* Install shadow region second table */ spin_lock(&sg->guest_table_lock); table = gmap_table_walk(sg, saddr, 3); /* get region-2 pointer */ @@ -1887,7 +1899,7 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t, _REGION_ENTRY_TYPE_R2 | _REGION_ENTRY_INVALID; if (sg->edat_level >= 1) *table |= (r3t & _REGION_ENTRY_PROTECT); - list_add(&page->lru, &sg->crst_list); + list_add(&ptdesc->pt_list, &sg->crst_list); if (fake) { /* nothing to protect for fake tables */ *table &= ~_REGION_ENTRY_INVALID; @@ -1915,8 +1927,7 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t, return rc; out_free: spin_unlock(&sg->guest_table_lock); - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); + pagetable_free(ptdesc); return rc; } EXPORT_SYMBOL_GPL(gmap_shadow_r3t); @@ -1940,18 +1951,18 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt, unsigned long raddr, origin, offset, len; unsigned long *table; phys_addr_t s_sgt; - struct page *page; + struct ptdesc *ptdesc; int rc; BUG_ON(!gmap_is_shadow(sg) || (sgt & _REGION3_ENTRY_LARGE)); /* Allocate a shadow segment table */ - page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); - if (!page) + ptdesc = pagetable_alloc(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); + if (!ptdesc) return -ENOMEM; - page->_pt_s390_gaddr = sgt & _REGION_ENTRY_ORIGIN; + ptdesc->_pt_s390_gaddr = sgt & _REGION_ENTRY_ORIGIN; if (fake) - page->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; - s_sgt = page_to_phys(page); + ptdesc->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; + s_sgt = page_to_phys(ptdesc_page(ptdesc)); /* Install shadow region second table */ spin_lock(&sg->guest_table_lock); table = gmap_table_walk(sg, saddr, 2); /* get region-3 pointer */ @@ -1972,7 +1983,7 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt, _REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INVALID; if (sg->edat_level >= 1) *table |= sgt & _REGION_ENTRY_PROTECT; - list_add(&page->lru, &sg->crst_list); + list_add(&ptdesc->pt_list, &sg->crst_list); if (fake) { /* nothing to protect for fake tables */ *table &= ~_REGION_ENTRY_INVALID; @@ -2000,8 +2011,7 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt, return rc; out_free: spin_unlock(&sg->guest_table_lock); - page->_pt_s390_gaddr = 0; - __free_pages(page, CRST_ALLOC_ORDER); + pagetable_free(ptdesc); return rc; } EXPORT_SYMBOL_GPL(gmap_shadow_sgt); @@ -2024,8 +2034,9 @@ int gmap_shadow_pgt_lookup(struct gmap *sg, unsigned long saddr, int *fake) { unsigned long *table; - struct page *page; int rc; + struct page *page; + struct ptdesc *ptdesc; BUG_ON(!gmap_is_shadow(sg)); spin_lock(&sg->guest_table_lock); @@ -2033,9 +2044,10 @@ int gmap_shadow_pgt_lookup(struct gmap *sg, unsigned long saddr, if (table && !(*table & _SEGMENT_ENTRY_INVALID)) { /* Shadow page tables are full pages (pte+pgste) */ page = pfn_to_page(*table >> PAGE_SHIFT); - *pgt = page->_pt_s390_gaddr & ~GMAP_SHADOW_FAKE_TABLE; + ptdesc = page_ptdesc(page); + *pgt = ptdesc->_pt_s390_gaddr & ~GMAP_SHADOW_FAKE_TABLE; *dat_protection = !!(*table & _SEGMENT_ENTRY_PROTECT); - *fake = !!(page->_pt_s390_gaddr & GMAP_SHADOW_FAKE_TABLE); + *fake = !!(ptdesc->_pt_s390_gaddr & GMAP_SHADOW_FAKE_TABLE); rc = 0; } else { rc = -EAGAIN; @@ -2064,19 +2076,19 @@ int gmap_shadow_pgt(struct gmap *sg, unsigned long saddr, unsigned long pgt, { unsigned long raddr, origin; unsigned long *table; - struct page *page; + struct ptdesc *ptdesc; phys_addr_t s_pgt; int rc; BUG_ON(!gmap_is_shadow(sg) || (pgt & _SEGMENT_ENTRY_LARGE)); /* Allocate a shadow page table */ - page = page_table_alloc_pgste(sg->mm); - if (!page) + ptdesc = page_ptdesc(page_table_alloc_pgste(sg->mm)); + if (!ptdesc) return -ENOMEM; - page->_pt_s390_gaddr = pgt & _SEGMENT_ENTRY_ORIGIN; + ptdesc->_pt_s390_gaddr = pgt & _SEGMENT_ENTRY_ORIGIN; if (fake) - page->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; - s_pgt = page_to_phys(page); + ptdesc->_pt_s390_gaddr |= GMAP_SHADOW_FAKE_TABLE; + s_pgt = page_to_phys(ptdesc_page(ptdesc)); /* Install shadow page table */ spin_lock(&sg->guest_table_lock); table = gmap_table_walk(sg, saddr, 1); /* get segment pointer */ @@ -2094,7 +2106,7 @@ int gmap_shadow_pgt(struct gmap *sg, unsigned long saddr, unsigned long pgt, /* mark as invalid as long as the parent table is not protected */ *table = (unsigned long) s_pgt | _SEGMENT_ENTRY | (pgt & _SEGMENT_ENTRY_PROTECT) | _SEGMENT_ENTRY_INVALID; - list_add(&page->lru, &sg->pt_list); + list_add(&ptdesc->pt_list, &sg->pt_list); if (fake) { /* nothing to protect for fake tables */ *table &= ~_SEGMENT_ENTRY_INVALID; @@ -2120,8 +2132,7 @@ int gmap_shadow_pgt(struct gmap *sg, unsigned long saddr, unsigned long pgt, return rc; out_free: spin_unlock(&sg->guest_table_lock); - page->_pt_s390_gaddr = 0; - page_table_free_pgste(page); + page_table_free_pgste(ptdesc_page(ptdesc)); return rc; } @@ -2821,11 +2832,11 @@ EXPORT_SYMBOL_GPL(__s390_uv_destroy_range); */ void s390_unlist_old_asce(struct gmap *gmap) { - struct page *old; + struct ptdesc *old; - old = virt_to_page(gmap->table); + old = virt_to_ptdesc(gmap->table); spin_lock(&gmap->guest_table_lock); - list_del(&old->lru); + list_del(&old->pt_list); /* * Sometimes the topmost page might need to be "removed" multiple * times, for example if the VM is rebooted into secure mode several @@ -2840,7 +2851,7 @@ void s390_unlist_old_asce(struct gmap *gmap) * pointers, so list_del can work (and do nothing) without * dereferencing stale or invalid pointers. */ - INIT_LIST_HEAD(&old->lru); + INIT_LIST_HEAD(&old->pt_list); spin_unlock(&gmap->guest_table_lock); } EXPORT_SYMBOL_GPL(s390_unlist_old_asce); @@ -2861,7 +2872,7 @@ EXPORT_SYMBOL_GPL(s390_unlist_old_asce); int s390_replace_asce(struct gmap *gmap) { unsigned long asce; - struct page *page; + struct ptdesc *ptdesc; void *table; s390_unlist_old_asce(gmap); @@ -2870,10 +2881,10 @@ int s390_replace_asce(struct gmap *gmap) if ((gmap->asce & _ASCE_TYPE_MASK) == _ASCE_TYPE_SEGMENT) return -EINVAL; - page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); - if (!page) + ptdesc = pagetable_alloc(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER); + if (!ptdesc) return -ENOMEM; - table = page_to_virt(page); + table = ptdesc_to_virt(ptdesc); memcpy(table, gmap->table, 1UL << (CRST_ALLOC_ORDER + PAGE_SHIFT)); /* @@ -2882,7 +2893,7 @@ int s390_replace_asce(struct gmap *gmap) * it will be freed when the VM is torn down. */ spin_lock(&gmap->guest_table_lock); - list_add(&page->lru, &gmap->crst_list); + list_add(&ptdesc->pt_list, &gmap->crst_list); spin_unlock(&gmap->guest_table_lock); /* Set new table origin while preserving existing ASCE control bits */ diff --git a/include/linux/mm.h b/include/linux/mm.h index 356e79984cf9..0e4d5f6d10e5 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2792,6 +2792,9 @@ static inline void pagetable_free(struct ptdesc *pt) { struct page *page = ptdesc_page(pt); + /* set page->mapping to NULL since s390 gmap may have used it */ + pt->_pt_s390_gaddr = 0; + __free_pages(page, compound_order(page)); } From patchwork Thu Jun 22 20:57:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289711 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A672C00528 for ; Thu, 22 Jun 2023 21:00:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231348AbjFVVAi (ORCPT ); Thu, 22 Jun 2023 17:00:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49724 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231622AbjFVU70 (ORCPT ); Thu, 22 Jun 2023 16:59:26 -0400 Received: from mail-yb1-xb30.google.com (mail-yb1-xb30.google.com [IPv6:2607:f8b0:4864:20::b30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D88322696; Thu, 22 Jun 2023 13:58:53 -0700 (PDT) Received: by mail-yb1-xb30.google.com with SMTP id 3f1490d57ef6-bc4e41b7bc9so7406350276.2; Thu, 22 Jun 2023 13:58:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467509; x=1690059509; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=TkWAvuRnBcdDxQyUnHPccd2fzUbRvSLtPtfAdfkK0D0=; b=JUQrsli+sZGsM8ArTlB5xxxiXKaQ16kjb1jNJsf0EUnbEut5z8LPr7zozX3ngN3J6U oj9/6o1cvTbYQi1Ubens/5FSyer6qx2thXPWjAh/xxc284PvAGzN/QcAlMX9ynhGpd+T qPIkIg2LWrvLj/PvTjq3bl0zpKRlIAyxwTdxLcPdZ+3tz8EC/Gj9TafQgAoQSYOL+27+ CzmubZqKv2NQZEHqYF4zYQ48aNi68OK+vRu/rRbQy5mdk2My4qXesWcHTBf8AdzAB7RK OxWWIhxNEt1q7Zuw+9arNrILmoHLJ1cED2gx0CscP7EpkO9Ko2k74vfvaSBElKBfCj0j OqcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467509; x=1690059509; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=TkWAvuRnBcdDxQyUnHPccd2fzUbRvSLtPtfAdfkK0D0=; b=D4NtGwH7FIKdLzXCxCAbXIBHVkisC3Cym2ziVnWIYRuI2VNzje76RnwOkJtuLg3bKc BFCybgo+h2M91ThTThPUyrDqY/Qt0cLkZVzbLK0Wh0nChjjuj4sMzTd7zeoQgE4VrcGJ If/gECbjqJ3KmL7fCh9k2rkKzB7kSffEljMRKtUKHumWJO0HleREFftkUr/+KN+v36f3 PrR9W20OWvPheNapR0LlF9yL/xcV9alOVvDatjcwzHZjDuGEA2mZ1FAYEqi/dY0zbxJb 7mutvkcDr82zZYR8goBduNAj3tMQfgWEZ50t347OZFlcgvbUKWXX9gmbkkSS8DNJVcY0 67xA== X-Gm-Message-State: AC+VfDyHNpSCWUlvhZg9Vo1S6wA/6MMrff2tqG599zhosb6ePA7BWv2j ksm6SX89LRK7RBwZHhi2Drg= X-Google-Smtp-Source: ACHHUZ7T6Q6eadVFq1EkBKsONl5ooGMQ7R2flB1sllXachKXuN6+pkqfDDMeF2C+84hA1P0QBPzXOA== X-Received: by 2002:a25:c785:0:b0:bb3:ae54:9fcd with SMTP id w127-20020a25c785000000b00bb3ae549fcdmr16462955ybe.23.1687467509110; Thu, 22 Jun 2023 13:58:29 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:28 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , David Hildenbrand , Claudio Imbrenda , Mike Rapoport Subject: [PATCH v5 16/33] s390: Convert various pgalloc functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:28 -0700 Message-Id: <20230622205745.79707-17-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/s390/include/asm/pgalloc.h | 4 +- arch/s390/include/asm/tlb.h | 4 +- arch/s390/mm/pgalloc.c | 108 ++++++++++++++++---------------- 3 files changed, 59 insertions(+), 57 deletions(-) diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index 17eb618f1348..00ad9b88fda9 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -86,7 +86,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr) if (!table) return NULL; crst_table_init(table, _SEGMENT_ENTRY_EMPTY); - if (!pgtable_pmd_page_ctor(virt_to_page(table))) { + if (!pagetable_pmd_ctor(virt_to_ptdesc(table))) { crst_table_free(mm, table); return NULL; } @@ -97,7 +97,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { if (mm_pmd_folded(mm)) return; - pgtable_pmd_page_dtor(virt_to_page(pmd)); + pagetable_pmd_dtor(virt_to_ptdesc(pmd)); crst_table_free(mm, (unsigned long *) pmd); } diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index b91f4a9b044c..383b1f91442c 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -89,12 +89,12 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, { if (mm_pmd_folded(tlb->mm)) return; - pgtable_pmd_page_dtor(virt_to_page(pmd)); + pagetable_pmd_dtor(virt_to_ptdesc(pmd)); __tlb_adjust_range(tlb, address, PAGE_SIZE); tlb->mm->context.flush_mm = 1; tlb->freed_tables = 1; tlb->cleared_puds = 1; - tlb_remove_table(tlb, pmd); + tlb_remove_ptdesc(tlb, pmd); } /* diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c index 66ab68db9842..79b1c2458d85 100644 --- a/arch/s390/mm/pgalloc.c +++ b/arch/s390/mm/pgalloc.c @@ -43,17 +43,17 @@ __initcall(page_table_register_sysctl); unsigned long *crst_table_alloc(struct mm_struct *mm) { - struct page *page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER); + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL, CRST_ALLOC_ORDER); - if (!page) + if (!ptdesc) return NULL; - arch_set_page_dat(page, CRST_ALLOC_ORDER); - return (unsigned long *) page_to_virt(page); + arch_set_page_dat(ptdesc_page(ptdesc), CRST_ALLOC_ORDER); + return (unsigned long *) ptdesc_to_virt(ptdesc); } void crst_table_free(struct mm_struct *mm, unsigned long *table) { - free_pages((unsigned long)table, CRST_ALLOC_ORDER); + pagetable_free(virt_to_ptdesc(table)); } static void __crst_table_upgrade(void *arg) @@ -140,21 +140,21 @@ static inline unsigned int atomic_xor_bits(atomic_t *v, unsigned int bits) struct page *page_table_alloc_pgste(struct mm_struct *mm) { - struct page *page; + struct ptdesc *ptdesc; u64 *table; - page = alloc_page(GFP_KERNEL); - if (page) { - table = (u64 *)page_to_virt(page); + ptdesc = pagetable_alloc(GFP_KERNEL, 0); + if (ptdesc) { + table = (u64 *)ptdesc_to_virt(ptdesc); memset64(table, _PAGE_INVALID, PTRS_PER_PTE); memset64(table + PTRS_PER_PTE, 0, PTRS_PER_PTE); } - return page; + return ptdesc_page(ptdesc); } void page_table_free_pgste(struct page *page) { - __free_page(page); + pagetable_free(page_ptdesc(page)); } #endif /* CONFIG_PGSTE */ @@ -233,7 +233,7 @@ void page_table_free_pgste(struct page *page) unsigned long *page_table_alloc(struct mm_struct *mm) { unsigned long *table; - struct page *page; + struct ptdesc *ptdesc; unsigned int mask, bit; /* Try to get a fragment of a 4K page as a 2K page table */ @@ -241,9 +241,9 @@ unsigned long *page_table_alloc(struct mm_struct *mm) table = NULL; spin_lock_bh(&mm->context.lock); if (!list_empty(&mm->context.pgtable_list)) { - page = list_first_entry(&mm->context.pgtable_list, - struct page, lru); - mask = atomic_read(&page->_refcount) >> 24; + ptdesc = list_first_entry(&mm->context.pgtable_list, + struct ptdesc, pt_list); + mask = atomic_read(&ptdesc->_refcount) >> 24; /* * The pending removal bits must also be checked. * Failure to do so might lead to an impossible @@ -255,13 +255,13 @@ unsigned long *page_table_alloc(struct mm_struct *mm) */ mask = (mask | (mask >> 4)) & 0x03U; if (mask != 0x03U) { - table = (unsigned long *) page_to_virt(page); + table = (unsigned long *) ptdesc_to_virt(ptdesc); bit = mask & 1; /* =1 -> second 2K */ if (bit) table += PTRS_PER_PTE; - atomic_xor_bits(&page->_refcount, + atomic_xor_bits(&ptdesc->_refcount, 0x01U << (bit + 24)); - list_del(&page->lru); + list_del(&ptdesc->pt_list); } } spin_unlock_bh(&mm->context.lock); @@ -269,27 +269,27 @@ unsigned long *page_table_alloc(struct mm_struct *mm) return table; } /* Allocate a fresh page */ - page = alloc_page(GFP_KERNEL); - if (!page) + ptdesc = pagetable_alloc(GFP_KERNEL, 0); + if (!ptdesc) return NULL; - if (!pgtable_pte_page_ctor(page)) { - __free_page(page); + if (!pagetable_pte_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - arch_set_page_dat(page, 0); + arch_set_page_dat(ptdesc_page(ptdesc), 0); /* Initialize page table */ - table = (unsigned long *) page_to_virt(page); + table = (unsigned long *) ptdesc_to_virt(ptdesc); if (mm_alloc_pgste(mm)) { /* Return 4K page table with PGSTEs */ - atomic_xor_bits(&page->_refcount, 0x03U << 24); + atomic_xor_bits(&ptdesc->_refcount, 0x03U << 24); memset64((u64 *)table, _PAGE_INVALID, PTRS_PER_PTE); memset64((u64 *)table + PTRS_PER_PTE, 0, PTRS_PER_PTE); } else { /* Return the first 2K fragment of the page */ - atomic_xor_bits(&page->_refcount, 0x01U << 24); + atomic_xor_bits(&ptdesc->_refcount, 0x01U << 24); memset64((u64 *)table, _PAGE_INVALID, 2 * PTRS_PER_PTE); spin_lock_bh(&mm->context.lock); - list_add(&page->lru, &mm->context.pgtable_list); + list_add(&ptdesc->pt_list, &mm->context.pgtable_list); spin_unlock_bh(&mm->context.lock); } return table; @@ -311,9 +311,8 @@ static void page_table_release_check(struct page *page, void *table, void page_table_free(struct mm_struct *mm, unsigned long *table) { unsigned int mask, bit, half; - struct page *page; + struct ptdesc *ptdesc = virt_to_ptdesc(table); - page = virt_to_page(table); if (!mm_alloc_pgste(mm)) { /* Free 2K page table fragment of a 4K page */ bit = ((unsigned long) table & ~PAGE_MASK)/(PTRS_PER_PTE*sizeof(pte_t)); @@ -323,42 +322,41 @@ void page_table_free(struct mm_struct *mm, unsigned long *table) * will happen outside of the critical section from this * function or from __tlb_remove_table() */ - mask = atomic_xor_bits(&page->_refcount, 0x11U << (bit + 24)); + mask = atomic_xor_bits(&ptdesc->_refcount, 0x11U << (bit + 24)); mask >>= 24; if (mask & 0x03U) - list_add(&page->lru, &mm->context.pgtable_list); + list_add(&ptdesc->pt_list, &mm->context.pgtable_list); else - list_del(&page->lru); + list_del(&ptdesc->pt_list); spin_unlock_bh(&mm->context.lock); - mask = atomic_xor_bits(&page->_refcount, 0x10U << (bit + 24)); + mask = atomic_xor_bits(&ptdesc->_refcount, 0x10U << (bit + 24)); mask >>= 24; if (mask != 0x00U) return; half = 0x01U << bit; } else { half = 0x03U; - mask = atomic_xor_bits(&page->_refcount, 0x03U << 24); + mask = atomic_xor_bits(&ptdesc->_refcount, 0x03U << 24); mask >>= 24; } - page_table_release_check(page, table, half, mask); - pgtable_pte_page_dtor(page); - __free_page(page); + page_table_release_check(ptdesc_page(ptdesc), table, half, mask); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } void page_table_free_rcu(struct mmu_gather *tlb, unsigned long *table, unsigned long vmaddr) { struct mm_struct *mm; - struct page *page; unsigned int bit, mask; + struct ptdesc *ptdesc = virt_to_ptdesc(table); mm = tlb->mm; - page = virt_to_page(table); if (mm_alloc_pgste(mm)) { gmap_unlink(mm, table, vmaddr); table = (unsigned long *) ((unsigned long)table | 0x03U); - tlb_remove_table(tlb, table); + tlb_remove_ptdesc(tlb, table); return; } bit = ((unsigned long) table & ~PAGE_MASK) / (PTRS_PER_PTE*sizeof(pte_t)); @@ -368,12 +366,12 @@ void page_table_free_rcu(struct mmu_gather *tlb, unsigned long *table, * outside of the critical section from __tlb_remove_table() or from * page_table_free() */ - mask = atomic_xor_bits(&page->_refcount, 0x11U << (bit + 24)); + mask = atomic_xor_bits(&ptdesc->_refcount, 0x11U << (bit + 24)); mask >>= 24; if (mask & 0x03U) - list_add_tail(&page->lru, &mm->context.pgtable_list); + list_add_tail(&ptdesc->pt_list, &mm->context.pgtable_list); else - list_del(&page->lru); + list_del(&ptdesc->pt_list); spin_unlock_bh(&mm->context.lock); table = (unsigned long *) ((unsigned long) table | (0x01U << bit)); tlb_remove_table(tlb, table); @@ -383,7 +381,7 @@ void __tlb_remove_table(void *_table) { unsigned int mask = (unsigned long) _table & 0x03U, half = mask; void *table = (void *)((unsigned long) _table ^ mask); - struct page *page = virt_to_page(table); + struct ptdesc *ptdesc = virt_to_ptdesc(table); switch (half) { case 0x00U: /* pmd, pud, or p4d */ @@ -391,20 +389,20 @@ void __tlb_remove_table(void *_table) return; case 0x01U: /* lower 2K of a 4K page table */ case 0x02U: /* higher 2K of a 4K page table */ - mask = atomic_xor_bits(&page->_refcount, mask << (4 + 24)); + mask = atomic_xor_bits(&ptdesc->_refcount, mask << (4 + 24)); mask >>= 24; if (mask != 0x00U) return; break; case 0x03U: /* 4K page table with pgstes */ - mask = atomic_xor_bits(&page->_refcount, 0x03U << 24); + mask = atomic_xor_bits(&ptdesc->_refcount, 0x03U << 24); mask >>= 24; break; } - page_table_release_check(page, table, half, mask); - pgtable_pte_page_dtor(page); - __free_page(page); + page_table_release_check(ptdesc_page(ptdesc), table, half, mask); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } /* @@ -432,16 +430,20 @@ static void base_pgt_free(unsigned long *table) static unsigned long *base_crst_alloc(unsigned long val) { unsigned long *table; + struct ptdesc *ptdesc; - table = (unsigned long *)__get_free_pages(GFP_KERNEL, CRST_ALLOC_ORDER); - if (table) - crst_table_init(table, val); + ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, CRST_ALLOC_ORDER); + if (!ptdesc) + return NULL; + table = ptdesc_address(ptdesc); + + crst_table_init(table, val); return table; } static void base_crst_free(unsigned long *table) { - free_pages((unsigned long)table, CRST_ALLOC_ORDER); + pagetable_free(virt_to_ptdesc(table)); } #define BASE_ADDR_END_FUNC(NAME, SIZE) \ From patchwork Thu Jun 22 20:57:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289712 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DCD97C04FE0 for ; Thu, 22 Jun 2023 21:00:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231840AbjFVVAn (ORCPT ); Thu, 22 Jun 2023 17:00:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231626AbjFVU70 (ORCPT ); Thu, 22 Jun 2023 16:59:26 -0400 Received: from mail-qk1-x732.google.com (mail-qk1-x732.google.com [IPv6:2607:f8b0:4864:20::732]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9224B26A4; Thu, 22 Jun 2023 13:58:55 -0700 (PDT) Received: by mail-qk1-x732.google.com with SMTP id af79cd13be357-762092e1fb7so682069985a.1; Thu, 22 Jun 2023 13:58:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467511; x=1690059511; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=nccUzLka7Xkr4OuMpYk05u/KaIGQrzDFYQttz/vcmHQ=; b=bxkxtD+QQAC8zd161RKeCcg6MaoPAPE7L+CauClsYEL0Xy9+Td62VuxUGsgYxnFiq0 O6uvJ71cZ3HzaD3sn95/EOTS8BXKpmL+IQrAYm0nHFHW9S+p9vWLuqdK4qFg64CCRbun joR+Hl/5hsxihcXKPDNMSOwFhI08HqC+OD8d0u+5w8Qz5HarhFJT9jfwORvF779fEL9V zRFvHmiRuYANo66EVjgtR36nI9raB2GVIEDQNVqxyl97sNwtEBiuGHRD00zHWqOmK+wx CCZ2jYpmNaAVgCE8uPmkzzzOyp8bu94YHjJqAydk7W1+LKznmMU3DWFCBUl+KliiUs4D rLQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467511; x=1690059511; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=nccUzLka7Xkr4OuMpYk05u/KaIGQrzDFYQttz/vcmHQ=; b=Xlaw66sCUyGyIvXKGce0isRkP2pDB3wOhwOYeYvLbsWhxJmmFtbcecyNwGKolAAHs1 Cw+xncxvKsEJ1RU+pG61YWIJB6S3p0INav3NveqEzS58/84zZXfjkKvnC3aaiPjgS+9X R33VZWxfrNSdmM1KlJPgOS/qS2SZUhMo/R95sYd0bI8I45ggQoiF38mn6cht8GxEC2On yvqL7K1OlOLHuuVpUtzIJr7JHmKvRZUNEBB+0ca/uNX+d75WXM2KRiKwJpT0NyrZc7j7 kyF/PTVfnRTr5uJvOrrmqg7LYkQzbwz2xANW7MQBQ4dEtQgK1ZzvChbhKU8ucTAysSfq 5p6Q== X-Gm-Message-State: AC+VfDypZ3R9S8wNWozVGl/VPX831m4pqhO8a1BuAObT2HABvTDUb4+M mbHeXBDrkI6KNY9wjzRKsIg= X-Google-Smtp-Source: ACHHUZ4ad8Rj1cEO907Psdq+ajLgAiK0FYJ6eHB9wwgKt19FWwArd1FWX8Y4TNXwZH2eE/VH/YBYiA== X-Received: by 2002:a05:620a:4790:b0:765:41c1:31eb with SMTP id dt16-20020a05620a479000b0076541c131ebmr1410020qkb.48.1687467511080; Thu, 22 Jun 2023 13:58:31 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:30 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 17/33] mm: Remove page table members from struct page Date: Thu, 22 Jun 2023 13:57:29 -0700 Message-Id: <20230622205745.79707-18-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org The page table members are now split out into their own ptdesc struct. Remove them from struct page. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- include/linux/mm_types.h | 14 -------------- include/linux/pgtable.h | 3 --- 2 files changed, 17 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index fbbe4e93a9ba..434e54440686 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -141,20 +141,6 @@ struct page { struct { /* Tail pages of compound page */ unsigned long compound_head; /* Bit zero is set */ }; - struct { /* Page table pages */ - unsigned long _pt_pad_1; /* compound_head */ - pgtable_t pmd_huge_pte; /* protected by page->ptl */ - unsigned long _pt_s390_gaddr; /* mapping */ - union { - struct mm_struct *pt_mm; /* x86 pgds only */ - atomic_t pt_frag_refcount; /* powerpc */ - }; -#if ALLOC_SPLIT_PTLOCKS - spinlock_t *ptl; -#else - spinlock_t ptl; -#endif - }; struct { /* ZONE_DEVICE pages */ /** @pgmap: Points to the hosting device page map. */ struct dev_pagemap *pgmap; diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index e9bb5f18cade..daeacfe3930d 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1044,10 +1044,7 @@ struct ptdesc { TABLE_MATCH(flags, __page_flags); TABLE_MATCH(compound_head, pt_list); TABLE_MATCH(compound_head, _pt_pad_1); -TABLE_MATCH(pmd_huge_pte, pmd_huge_pte); TABLE_MATCH(mapping, _pt_s390_gaddr); -TABLE_MATCH(pt_mm, pt_mm); -TABLE_MATCH(ptl, ptl); TABLE_MATCH(rcu_head, pt_rcu_head); #ifdef CONFIG_MEMCG TABLE_MATCH(memcg_data, pt_memcg_data); From patchwork Thu Jun 22 20:57:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289714 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33D05C001DD for ; Thu, 22 Jun 2023 21:01:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230503AbjFVVA6 (ORCPT ); Thu, 22 Jun 2023 17:00:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49114 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231645AbjFVU71 (ORCPT ); Thu, 22 Jun 2023 16:59:27 -0400 Received: from mail-yb1-xb33.google.com (mail-yb1-xb33.google.com [IPv6:2607:f8b0:4864:20::b33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3FC02720; Thu, 22 Jun 2023 13:58:57 -0700 (PDT) Received: by mail-yb1-xb33.google.com with SMTP id 3f1490d57ef6-bc4e41b7bc9so7406391276.2; Thu, 22 Jun 2023 13:58:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467513; x=1690059513; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=bBkB4loM/Mt006iaxsYk7j8UnaAx8a9/NTd5FkPootg=; b=U/YhvIXsF31wyJbA88HCf5OMe/axiBVQv7uWDZihpT9cKR36AFdZIT/f1WwSyzH4hI U+m0TMsQkM7UPfGfoV+xyDDbKx0sn4rR9VR2kSMc/ekrVux2GO+7Ic+8heNm0pglVtP2 t1UCU3KD4xkYuJJWuiek/S+QoJhBCWN2Lbj1sTa5MjcyOpNlRy9xyvjddQZRa5sN2lln b7+B68MAYuCOvXQ/r3g8J9suD6O3M2csXA9+uWAiXx9rhZT2WrY6ABRuoILJHZtSBr2y 1QWhI34MPT8UQnj1JkQ7Zf6eaKvwmPeBbVlvE52nu4uEPYScQoo9/k4f5Oli5uroIxml dglQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467513; x=1690059513; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=bBkB4loM/Mt006iaxsYk7j8UnaAx8a9/NTd5FkPootg=; b=JeU2jGEnKJKXthDg2x/2bZcNYqZImry/uz2+9J7tA2sDlgMbJdD43Zj2/TSuD4qu1C KHTazCZHMEss3qi63LoJu5ZxGHbKWNJKJCWNrovvpAeXIb3xHFD/6xNgY9XF1XYNbsIx IEQujECwcm20evoY5tGiiCXoA8cgwr9VND2ajV199xJNkMAihMaLbPXyvg1DwFE+AwS8 JRigQIcOPd5Q1ZhpDK+1//6clzOlJ9MmAwM+7sa5jTHb/cTVH5Goio6PK2ZQ7vcsMrMZ o5+Ru2Fg47ntI7O8dK9uD4RPWB+fCjQ2cDlROpFsKR+dh8yj8e21OH314w7zsoUOQrtx 4WZw== X-Gm-Message-State: AC+VfDyI+OZV7dJrc7WFBeThfqAtv7xmkRIkDwnaOYl0QFXd7rCacYNS y2ukHU1a2PdtzsGnBf75vys= X-Google-Smtp-Source: ACHHUZ6hexLSx7MCu/vikPSHcuare299VqfoBmWOu7Ee1hjFQNgv7EnnmzWGuhYTdY+5xZGWojZCRA== X-Received: by 2002:a25:2f83:0:b0:bac:689f:a7ca with SMTP id v125-20020a252f83000000b00bac689fa7camr15467880ybv.15.1687467513112; Thu, 22 Jun 2023 13:58:33 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:32 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" Subject: [PATCH v5 18/33] pgalloc: Convert various functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:30 -0700 Message-Id: <20230622205745.79707-19-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) --- include/asm-generic/pgalloc.h | 88 +++++++++++++++++++++-------------- 1 file changed, 52 insertions(+), 36 deletions(-) diff --git a/include/asm-generic/pgalloc.h b/include/asm-generic/pgalloc.h index a7cf825befae..c75d4a753849 100644 --- a/include/asm-generic/pgalloc.h +++ b/include/asm-generic/pgalloc.h @@ -8,7 +8,7 @@ #define GFP_PGTABLE_USER (GFP_PGTABLE_KERNEL | __GFP_ACCOUNT) /** - * __pte_alloc_one_kernel - allocate a page for PTE-level kernel page table + * __pte_alloc_one_kernel - allocate memory for a PTE-level kernel page table * @mm: the mm_struct of the current context * * This function is intended for architectures that need @@ -18,12 +18,17 @@ */ static inline pte_t *__pte_alloc_one_kernel(struct mm_struct *mm) { - return (pte_t *)__get_free_page(GFP_PGTABLE_KERNEL); + struct ptdesc *ptdesc = pagetable_alloc(GFP_PGTABLE_KERNEL & + ~__GFP_HIGHMEM, 0); + + if (!ptdesc) + return NULL; + return ptdesc_address(ptdesc); } #ifndef __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL /** - * pte_alloc_one_kernel - allocate a page for PTE-level kernel page table + * pte_alloc_one_kernel - allocate memory for a PTE-level kernel page table * @mm: the mm_struct of the current context * * Return: pointer to the allocated memory or %NULL on error @@ -35,40 +40,40 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) #endif /** - * pte_free_kernel - free PTE-level kernel page table page + * pte_free_kernel - free PTE-level kernel page table memory * @mm: the mm_struct of the current context * @pte: pointer to the memory containing the page table */ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { - free_page((unsigned long)pte); + pagetable_free(virt_to_ptdesc(pte)); } /** - * __pte_alloc_one - allocate a page for PTE-level user page table + * __pte_alloc_one - allocate memory for a PTE-level user page table * @mm: the mm_struct of the current context * @gfp: GFP flags to use for the allocation * - * Allocates a page and runs the pgtable_pte_page_ctor(). + * Allocate memory for a page table and ptdesc and runs pagetable_pte_ctor(). * * This function is intended for architectures that need * anything beyond simple page allocation or must have custom GFP flags. * - * Return: `struct page` initialized as page table or %NULL on error + * Return: `struct page` referencing the ptdesc or %NULL on error */ static inline pgtable_t __pte_alloc_one(struct mm_struct *mm, gfp_t gfp) { - struct page *pte; + struct ptdesc *ptdesc; - pte = alloc_page(gfp); - if (!pte) + ptdesc = pagetable_alloc(gfp, 0); + if (!ptdesc) return NULL; - if (!pgtable_pte_page_ctor(pte)) { - __free_page(pte); + if (!pagetable_pte_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - return pte; + return ptdesc_page(ptdesc); } #ifndef __HAVE_ARCH_PTE_ALLOC_ONE @@ -76,9 +81,9 @@ static inline pgtable_t __pte_alloc_one(struct mm_struct *mm, gfp_t gfp) * pte_alloc_one - allocate a page for PTE-level user page table * @mm: the mm_struct of the current context * - * Allocates a page and runs the pgtable_pte_page_ctor(). + * Allocate memory for a page table and ptdesc and runs pagetable_pte_ctor(). * - * Return: `struct page` initialized as page table or %NULL on error + * Return: `struct page` referencing the ptdesc or %NULL on error */ static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { @@ -92,14 +97,16 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm) */ /** - * pte_free - free PTE-level user page table page + * pte_free - free PTE-level user page table memory * @mm: the mm_struct of the current context - * @pte_page: the `struct page` representing the page table + * @pte_page: the `struct page` referencing the ptdesc */ static inline void pte_free(struct mm_struct *mm, struct page *pte_page) { - pgtable_pte_page_dtor(pte_page); - __free_page(pte_page); + struct ptdesc *ptdesc = page_ptdesc(pte_page); + + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } @@ -107,10 +114,11 @@ static inline void pte_free(struct mm_struct *mm, struct page *pte_page) #ifndef __HAVE_ARCH_PMD_ALLOC_ONE /** - * pmd_alloc_one - allocate a page for PMD-level page table + * pmd_alloc_one - allocate memory for a PMD-level page table * @mm: the mm_struct of the current context * - * Allocates a page and runs the pgtable_pmd_page_ctor(). + * Allocate memory for a page table and ptdesc and runs pagetable_pmd_ctor(). + * * Allocations use %GFP_PGTABLE_USER in user context and * %GFP_PGTABLE_KERNEL in kernel context. * @@ -118,28 +126,30 @@ static inline void pte_free(struct mm_struct *mm, struct page *pte_page) */ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) { - struct page *page; + struct ptdesc *ptdesc; gfp_t gfp = GFP_PGTABLE_USER; if (mm == &init_mm) gfp = GFP_PGTABLE_KERNEL; - page = alloc_page(gfp); - if (!page) + ptdesc = pagetable_alloc(gfp, 0); + if (!ptdesc) return NULL; - if (!pgtable_pmd_page_ctor(page)) { - __free_page(page); + if (!pagetable_pmd_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - return (pmd_t *)page_address(page); + return ptdesc_address(ptdesc); } #endif #ifndef __HAVE_ARCH_PMD_FREE static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { + struct ptdesc *ptdesc = virt_to_ptdesc(pmd); + BUG_ON((unsigned long)pmd & (PAGE_SIZE-1)); - pgtable_pmd_page_dtor(virt_to_page(pmd)); - free_page((unsigned long)pmd); + pagetable_pmd_dtor(ptdesc); + pagetable_free(ptdesc); } #endif @@ -150,19 +160,25 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) static inline pud_t *__pud_alloc_one(struct mm_struct *mm, unsigned long addr) { gfp_t gfp = GFP_PGTABLE_USER; + struct ptdesc *ptdesc; if (mm == &init_mm) gfp = GFP_PGTABLE_KERNEL; - return (pud_t *)get_zeroed_page(gfp); + gfp &= ~__GFP_HIGHMEM; + + ptdesc = pagetable_alloc(gfp, 0); + if (!ptdesc) + return NULL; + return ptdesc_address(ptdesc); } #ifndef __HAVE_ARCH_PUD_ALLOC_ONE /** - * pud_alloc_one - allocate a page for PUD-level page table + * pud_alloc_one - allocate memory for a PUD-level page table * @mm: the mm_struct of the current context * - * Allocates a page using %GFP_PGTABLE_USER for user context and - * %GFP_PGTABLE_KERNEL for kernel context. + * Allocate memory for a page table using %GFP_PGTABLE_USER for user context + * and %GFP_PGTABLE_KERNEL for kernel context. * * Return: pointer to the allocated memory or %NULL on error */ @@ -175,7 +191,7 @@ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) static inline void __pud_free(struct mm_struct *mm, pud_t *pud) { BUG_ON((unsigned long)pud & (PAGE_SIZE-1)); - free_page((unsigned long)pud); + pagetable_free(virt_to_ptdesc(pud)); } #ifndef __HAVE_ARCH_PUD_FREE @@ -190,7 +206,7 @@ static inline void pud_free(struct mm_struct *mm, pud_t *pud) #ifndef __HAVE_ARCH_PGD_FREE static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - free_page((unsigned long)pgd); + pagetable_free(virt_to_ptdesc(pgd)); } #endif From patchwork Thu Jun 22 20:57:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289715 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80796C001DF for ; Thu, 22 Jun 2023 21:01:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231521AbjFVVBa (ORCPT ); Thu, 22 Jun 2023 17:01:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49688 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231557AbjFVVAZ (ORCPT ); Thu, 22 Jun 2023 17:00:25 -0400 Received: from mail-qk1-x72d.google.com (mail-qk1-x72d.google.com [IPv6:2607:f8b0:4864:20::72d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0AE872950; Thu, 22 Jun 2023 13:59:06 -0700 (PDT) Received: by mail-qk1-x72d.google.com with SMTP id af79cd13be357-763d86856fdso194317185a.3; Thu, 22 Jun 2023 13:59:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467515; x=1690059515; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=jHkn+4hWn6cNWfQmftBQOtWQYQb9iJJIYcRZZNmu6iY=; b=aYnvKxdcWv6qwRiCaWGJVXxgi34L6bq8ffoeujUnALIHtFuBXRmM+bcP9XCahDm+sX c/aqF5jzy/t6hTOr4VmOAf00WcyCDW4uBsXDaSxBnZc2Y5pzs1DtJ08u48NaJcU33gxe biARDPsxQJJ1M4wS/EW+UE7Jv4/5cxI8wBjMD1x51K3UK2lYTvqb8DS6s/XFH10WDh2J VablBYi+dZASmJrgz36uvDp4UJXSq36XOIyfuFYT8xy605670eCEF/XRu34qeL3h/9QF NP9Vpp+QW87o+p8FpzexMhKxgQg/GTdeD91r7OzfnHYpx/Em9cW4zYexsWWaxdvDLTnY 5oIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467515; x=1690059515; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=jHkn+4hWn6cNWfQmftBQOtWQYQb9iJJIYcRZZNmu6iY=; b=Kigi801ah7OG8131Gp/LRceS2B8xkHH8TH6jhsWNosFmhY1/ktZ9I9nvC9Gz2wPE7x g6DZ/co9fjyyXMWJRmCfNG0eC6w4AyjFe3kpsQdC2y/Cubds8xt/9Y8z4pDAmkmVYX3r WD/GQiHPhldFsVdCZiWx+6AJV6ACkIn3YrueLRKql6AOagg3siQhzLU+VegCWZL8UJ8N /zKq+munE0rWLciFCLARNaC72tQ2uLg38KHwPXX79PNOe/x9OLN3f9BeSmygMX+//3Ij MlkmWbzZe8SGa1ePYe5BJhpt0MqfHRqFxshKJBa8JKKUjFQJ16tuWY84SXr9/h/ybs+c ruMw== X-Gm-Message-State: AC+VfDyzCcT4WG0vF/wzaJWxMlfZDhj0LPtCfLy/3quKaN8GVExz9xmS AAfpKHPwqt5TcbJgQSMUtvs= X-Google-Smtp-Source: ACHHUZ60juxfhAagNO6Es1Dw+TzUsWcwO9UH0sU+P0uZ6ZZDjPscGIIYCumcyS40JVtPdjZ8M8DAow== X-Received: by 2002:a05:620a:21dc:b0:763:a299:7235 with SMTP id h28-20020a05620a21dc00b00763a2997235mr11483461qka.0.1687467515158; Thu, 22 Jun 2023 13:58:35 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:34 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Catalin Marinas , Mike Rapoport Subject: [PATCH v5 19/33] arm: Convert various functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:31 -0700 Message-Id: <20230622205745.79707-20-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. late_alloc() also uses the __get_free_pages() helper function. Convert this to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/arm/include/asm/tlb.h | 12 +++++++----- arch/arm/mm/mmu.c | 7 ++++--- 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h index b8cbe03ad260..f40d06ad5d2a 100644 --- a/arch/arm/include/asm/tlb.h +++ b/arch/arm/include/asm/tlb.h @@ -39,7 +39,9 @@ static inline void __tlb_remove_table(void *_table) static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr) { - pgtable_pte_page_dtor(pte); + struct ptdesc *ptdesc = page_ptdesc(pte); + + pagetable_pte_dtor(ptdesc); #ifndef CONFIG_ARM_LPAE /* @@ -50,17 +52,17 @@ __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr) __tlb_adjust_range(tlb, addr - PAGE_SIZE, 2 * PAGE_SIZE); #endif - tlb_remove_table(tlb, pte); + tlb_remove_ptdesc(tlb, ptdesc); } static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, unsigned long addr) { #ifdef CONFIG_ARM_LPAE - struct page *page = virt_to_page(pmdp); + struct ptdesc *ptdesc = virt_to_ptdesc(pmdp); - pgtable_pmd_page_dtor(page); - tlb_remove_table(tlb, page); + pagetable_pmd_dtor(ptdesc); + tlb_remove_ptdesc(tlb, ptdesc); #endif } diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 13fc4bb5f792..fdeaee30d167 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -737,11 +737,12 @@ static void __init *early_alloc(unsigned long sz) static void *__init late_alloc(unsigned long sz) { - void *ptr = (void *)__get_free_pages(GFP_PGTABLE_KERNEL, get_order(sz)); + void *ptdesc = pagetable_alloc(GFP_PGTABLE_KERNEL & ~__GFP_HIGHMEM, + get_order(sz)); - if (!ptr || !pgtable_pte_page_ctor(virt_to_page(ptr))) + if (!ptdesc || !pagetable_pte_ctor(ptdesc)) BUG(); - return ptr; + return ptdesc_to_virt(ptdesc); } static pte_t * __init arm_pte_alloc(pmd_t *pmd, unsigned long addr, From patchwork Thu Jun 22 20:57:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289716 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AFAC6C001B1 for ; Thu, 22 Jun 2023 21:01:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231696AbjFVVBt (ORCPT ); Thu, 22 Jun 2023 17:01:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49250 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231587AbjFVVA1 (ORCPT ); Thu, 22 Jun 2023 17:00:27 -0400 Received: from mail-yb1-xb35.google.com (mail-yb1-xb35.google.com [IPv6:2607:f8b0:4864:20::b35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC9EE295C; Thu, 22 Jun 2023 13:59:10 -0700 (PDT) Received: by mail-yb1-xb35.google.com with SMTP id 3f1490d57ef6-be49ca27e1fso7104855276.3; Thu, 22 Jun 2023 13:59:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467517; x=1690059517; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=1W6z1I6yvWrQZbHmgHYBEGZZDstSbvELOPET/EcKlKw=; b=WzrZfg7Ix9NVgsDMORZZHtKMCnkCtYTNqN5BxfEl0LqJAF/m52D2DjGs1CtMdjlW/Y FCQoo6ICOsgfyZao7TI8v6fZI4UENFpY3jZe81s91B3mvmmCsOIgDTDPzHKe5SMRuqNo GqmfsZL/fdh4LhL0Jo2UTpv/Zzerp4OFJp5voue8zSTsRJ0/4bzo0POGwXibz4pL7ew3 XfWPis6drhy3Tn+kW5uEHt9jkm10f1F49xoaZHUD6V/XhEZK2GBId7pwhiwEW8CobjeX ndMopKlNsVQQSaeMMfuVNTCC7fSMRAuphXmsb5MG/ItVGni8JlC+amvlrfvw1GK2MkRJ BN3A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467517; x=1690059517; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=1W6z1I6yvWrQZbHmgHYBEGZZDstSbvELOPET/EcKlKw=; b=Q5behfvMKW5tnGa1l+DCjwjwHXdVsDS6Ck2x/HR/utm6iWpMtK/nCMEmjBrdKawwpe 2/nCT2uScd6MtOWdCRRqZs4dvtV7/MsM7hS+HWCeOEaE1XibW+Xtr+3xJfNKh/tM1GRV 5iLB7Snn/7NaRMD+yz3YFPeXseEHHeA2uMGhL7bnDm+E1XGsMUuv183iHmRDDJkAYVi8 IaFhPxypPxGuQHT3h3wAu1Fqql+Ek6z1UWm4gLtFjl3a7p1IOOxUS6LYBevZL6PiFSlq Q4KRKeeoMYF+u0oX+4wl9TVuAfdAqEHlGuUqenNYL/Ie3KN8xzr2KdO2c0b0jVIDskZS sMSQ== X-Gm-Message-State: AC+VfDw/8fdVkIZAGfKnHsu97FROsHlPIvds09srou2qOyRIiAR3Pes0 fyVvYRT2Jtw6SQAzOinJTP0= X-Google-Smtp-Source: ACHHUZ43E6q8U9GZrhFDLZLO6dXpt9JpmRg2Kg6CKMns06auYc1hxRdgyW9/NyEhButWG+5gdBeMhw== X-Received: by 2002:a25:b190:0:b0:bd4:8ea4:39bb with SMTP id h16-20020a25b190000000b00bd48ea439bbmr15159544ybj.4.1687467517233; Thu, 22 Jun 2023 13:58:37 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:36 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Catalin Marinas , Mike Rapoport Subject: [PATCH v5 20/33] arm64: Convert various functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:32 -0700 Message-Id: <20230622205745.79707-21-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) Acked-by: Catalin Marinas --- arch/arm64/include/asm/tlb.h | 14 ++++++++------ arch/arm64/mm/mmu.c | 7 ++++--- 2 files changed, 12 insertions(+), 9 deletions(-) diff --git a/arch/arm64/include/asm/tlb.h b/arch/arm64/include/asm/tlb.h index c995d1f4594f..2c29239d05c3 100644 --- a/arch/arm64/include/asm/tlb.h +++ b/arch/arm64/include/asm/tlb.h @@ -75,18 +75,20 @@ static inline void tlb_flush(struct mmu_gather *tlb) static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr) { - pgtable_pte_page_dtor(pte); - tlb_remove_table(tlb, pte); + struct ptdesc *ptdesc = page_ptdesc(pte); + + pagetable_pte_dtor(ptdesc); + tlb_remove_ptdesc(tlb, ptdesc); } #if CONFIG_PGTABLE_LEVELS > 2 static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, unsigned long addr) { - struct page *page = virt_to_page(pmdp); + struct ptdesc *ptdesc = virt_to_ptdesc(pmdp); - pgtable_pmd_page_dtor(page); - tlb_remove_table(tlb, page); + pagetable_pmd_dtor(ptdesc); + tlb_remove_ptdesc(tlb, ptdesc); } #endif @@ -94,7 +96,7 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pudp, unsigned long addr) { - tlb_remove_table(tlb, virt_to_page(pudp)); + tlb_remove_ptdesc(tlb, virt_to_ptdesc(pudp)); } #endif diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 95d360805f8a..47781bec6171 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -426,6 +426,7 @@ static phys_addr_t __pgd_pgtable_alloc(int shift) static phys_addr_t pgd_pgtable_alloc(int shift) { phys_addr_t pa = __pgd_pgtable_alloc(shift); + struct ptdesc *ptdesc = page_ptdesc(phys_to_page(pa)); /* * Call proper page table ctor in case later we need to @@ -433,12 +434,12 @@ static phys_addr_t pgd_pgtable_alloc(int shift) * this pre-allocated page table. * * We don't select ARCH_ENABLE_SPLIT_PMD_PTLOCK if pmd is - * folded, and if so pgtable_pmd_page_ctor() becomes nop. + * folded, and if so pagetable_pte_ctor() becomes nop. */ if (shift == PAGE_SHIFT) - BUG_ON(!pgtable_pte_page_ctor(phys_to_page(pa))); + BUG_ON(!pagetable_pte_ctor(ptdesc)); else if (shift == PMD_SHIFT) - BUG_ON(!pgtable_pmd_page_ctor(phys_to_page(pa))); + BUG_ON(!pagetable_pmd_ctor(ptdesc)); return pa; } From patchwork Thu Jun 22 20:57:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289717 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1302FC0015E for ; Thu, 22 Jun 2023 21:01:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231433AbjFVVBu (ORCPT ); Thu, 22 Jun 2023 17:01:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49116 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231473AbjFVVAm (ORCPT ); Thu, 22 Jun 2023 17:00:42 -0400 Received: from mail-qk1-x72d.google.com (mail-qk1-x72d.google.com [IPv6:2607:f8b0:4864:20::72d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 960592963; Thu, 22 Jun 2023 13:59:13 -0700 (PDT) Received: by mail-qk1-x72d.google.com with SMTP id af79cd13be357-763d6e8e286so178691085a.0; Thu, 22 Jun 2023 13:59:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467519; x=1690059519; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=/CuYJ7liBLmFxtlpmCAIL/qtog0vkZLk1dVk72P32nA=; b=BLHldLJJqXLpr8GAfoHi79v0sph0w6vN/SuJg9rBXjFWP7vHx2aGmaKx+f9hTGSIek StBGUDmlBLLgONen/ouQl25e+2Oh56rCFDCpMgFUEQOkNNTjcxLzf4Qpme/gK6EBGlEV uCg8bxuRbLrdLb22VpaeGfLLJwjdPeKaXRkjf+OAYYySwTDsQSI3SAbqeNXGAGljALee fcpdhclAhH7b5XES0gNbsvIBabKOZu9Ga/PYBeMD7nv08Dx2WAP2VJoEQ2QraVWTFN45 Wt/gJDKXfFk6SzeY9rfcZjQwBqyFukcCgFCguNA0XxXJLEGG2f88pPraJdoTC9IQG6ul Gb7g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467519; x=1690059519; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=/CuYJ7liBLmFxtlpmCAIL/qtog0vkZLk1dVk72P32nA=; b=Nudcur9OIyTWfbePh/GhLHGGI3oxkc5j82tyakdlqVHKDYR3P3+91wly91QtCraSOT rWMP2rfV78SypIzEQ+0DvX+uXMOkAk8amb8X4/I5ElxOodxidrxmlEvb5HisltfKFCvH PayKCv8mpCtT+WHyoGkrhcqrAFsO2NTtBp5bGDTcSOz8AAsqIrZiZpMbCKvEa9iKF6z2 QDIi21rM+hn+acYjY5pV4VpFh5g7QtNTCmxrskz2zMM2KbzMqlF2GpJhdDHt3S4gffxW RU+9HGlhHoCw8u17sJLFEwWRPRSDzAf3FXawY/cN5yINzSZnK8+PggvCO0xL69hq6+DW VGwA== X-Gm-Message-State: AC+VfDxsYy3MJ6c675wJIAo385NNP5jCOcZ7a2+qAhbWlnwgGgzVkKqb +Zruqo/ip4a0rZkcpw6SFRQ= X-Google-Smtp-Source: ACHHUZ4KRcOpBQjT0rqr9douhR2m3+ahnRE2h5Kbx3P/xMpW7X3b4hHm7K0gMXBTqIp4OFz3bRB+Jw== X-Received: by 2002:a05:620a:2cc1:b0:763:d981:d0a0 with SMTP id tc1-20020a05620a2cc100b00763d981d0a0mr4781474qkn.38.1687467519407; Thu, 22 Jun 2023 13:58:39 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:39 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Arnd Bergmann , Guo Ren , Mike Rapoport Subject: [PATCH v5 21/33] csky: Convert __pte_free_tlb() to use ptdescs Date: Thu, 22 Jun 2023 13:57:33 -0700 Message-Id: <20230622205745.79707-22-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents. Signed-off-by: Vishal Moola (Oracle) Acked-by: Guo Ren Acked-by: Mike Rapoport (IBM) --- arch/csky/include/asm/pgalloc.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/csky/include/asm/pgalloc.h b/arch/csky/include/asm/pgalloc.h index 7d57e5da0914..9c84c9012e53 100644 --- a/arch/csky/include/asm/pgalloc.h +++ b/arch/csky/include/asm/pgalloc.h @@ -63,8 +63,8 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) #define __pte_free_tlb(tlb, pte, address) \ do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page(tlb, pte); \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc(tlb, page_ptdesc(pte)); \ } while (0) extern void pagetable_init(void); From patchwork Thu Jun 22 20:57:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289718 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6AE30C04E69 for ; Thu, 22 Jun 2023 21:01:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231742AbjFVVB4 (ORCPT ); Thu, 22 Jun 2023 17:01:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231527AbjFVVBE (ORCPT ); Thu, 22 Jun 2023 17:01:04 -0400 Received: from mail-qk1-x72a.google.com (mail-qk1-x72a.google.com [IPv6:2607:f8b0:4864:20::72a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6E6072978; Thu, 22 Jun 2023 13:59:18 -0700 (PDT) Received: by mail-qk1-x72a.google.com with SMTP id af79cd13be357-763bd31d223so257173885a.3; Thu, 22 Jun 2023 13:59:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467521; x=1690059521; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=aUnc1suNAj/KzreaB6s7vAsOWiJZx3FNBLzDbQjj/SU=; b=mxSRrVtskejfc/X16Q74dptO75kex0U1BDLuwz97pVRe94MsJ1tXF/mDBi2+KIRPRR 7frc0Ipdbv1qDfHMpCRO5VQbJ/DKNN2DmrrOctIElaXq4X1eS2wG1MgKx+EEIDm5IE/n dhPljY31cmgrHKk6DhfJfpvGe6V9T4MqXnsXF7ZHxbxJIsBPM+C004kDxiRMae/4a+6A l/JL+zpf4vx2gyi8iDyTm65oAYm1ZOIjSFK4K+nSdgPKFtV6K4nHQ1K38iP6GDgp4k/p RVulC8Jyfz61VS4MiwEinectlQ9R+QOPA/9MgDEtR4kVqNBk2wlMydoonlFLN2E5gAjW A4dg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467521; x=1690059521; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=aUnc1suNAj/KzreaB6s7vAsOWiJZx3FNBLzDbQjj/SU=; b=FpJxkMfY0iMDNb5urF2EtyfPdxf3Uuo/8P+j1IEu3xdJNiM8FztLiNQ9DQn/rqwqIE OlJBGSS4aFigJadl+Dn0ouE4cMkrfirk/G/Eq1cL9bKRyXwy8RyBETPhFZ0Tkz2Tx8G7 Lms/8EdbSI28Tz7UkR3w0PBB416h2AJUYVqEAzQGjoKVHFF9KBOj0Ho8nJgE6zTBmb+K VW5dMJzXxDAtySWMeisNPchLM20sXtNe+nsGyR3svImWJvRgZQU5FZVhLD+Go4eXLLiQ VB8r0VqXeYMzZeCzFrMZ7QCZTG7uiJ6ekoMoMJxAEUwGoDrm/LrSbQezktUQGCgQAvWU W9Aw== X-Gm-Message-State: AC+VfDzed9iYWF98V7e2/YD8UGD0sQmp6bcJT7OWfbpfGE7ATXyqOBms VPWPwIasG2tsPBcc526fVL8= X-Google-Smtp-Source: ACHHUZ6uwsaC+f+4ISzpiwzmvKryO8fCbzH23CcTApoIn0lsQ518YuGTPwW7f524cMEve6g2SlrGNw== X-Received: by 2002:a05:620a:c82:b0:75e:6837:19f8 with SMTP id q2-20020a05620a0c8200b0075e683719f8mr19290818qki.54.1687467521509; Thu, 22 Jun 2023 13:58:41 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:41 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 22/33] hexagon: Convert __pte_free_tlb() to use ptdescs Date: Thu, 22 Jun 2023 13:57:34 -0700 Message-Id: <20230622205745.79707-23-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/hexagon/include/asm/pgalloc.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h index f0c47e6a7427..55988625e6fb 100644 --- a/arch/hexagon/include/asm/pgalloc.h +++ b/arch/hexagon/include/asm/pgalloc.h @@ -87,10 +87,10 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, max_kernel_seg = pmdindex; } -#define __pte_free_tlb(tlb, pte, addr) \ -do { \ - pgtable_pte_page_dtor((pte)); \ - tlb_remove_page((tlb), (pte)); \ +#define __pte_free_tlb(tlb, pte, addr) \ +do { \ + pagetable_pte_dtor((page_ptdesc(pte))); \ + tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \ } while (0) #endif From patchwork Thu Jun 22 20:57:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289719 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67FA3C001B1 for ; Thu, 22 Jun 2023 21:02:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231752AbjFVVCJ (ORCPT ); Thu, 22 Jun 2023 17:02:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49638 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231370AbjFVVBX (ORCPT ); Thu, 22 Jun 2023 17:01:23 -0400 Received: from mail-vk1-xa2e.google.com (mail-vk1-xa2e.google.com [IPv6:2607:f8b0:4864:20::a2e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5DCDA1FF6; Thu, 22 Jun 2023 13:59:24 -0700 (PDT) Received: by mail-vk1-xa2e.google.com with SMTP id 71dfb90a1353d-4718f761333so2381572e0c.0; Thu, 22 Jun 2023 13:59:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467523; x=1690059523; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=pBiyp2dfMpzV+NvCt1JbKOh6Ic1GEYp83948mVxRzoc=; b=kdaaDiZKntiVJqU6E+Fdy3gZ3zaYbFA4aZZ/ujglTgT5Y9qcAssURDthairv7t75pp DZxvPr4/eKE0doRm+U97EupNPOOTaxsU7MNWazhNoOvbWE4XMk615RzVbyQxpiQSMZLV teIZa5P2Nka6xv2fZj5Vm1X3bRNUsisHvvXMCnaK2ZkQVxJ23k+YXES8hxX51riBNGcy dBs/ll9Jvj9PkoRHnWQsnOHXYAxD19XHIBiXUNkDRQVqZwqJb6khPxnLaSebog2ECYc2 chI66X4PTb46Q3YOBBlw9vYeA9+HI9TiAAm+zkoHCKp+jdKVA4Qb45V8N3EiJFN0K5gl bLCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467523; x=1690059523; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=pBiyp2dfMpzV+NvCt1JbKOh6Ic1GEYp83948mVxRzoc=; b=Tg5cwJDmr/2DJE6OwWHoOBmyMEWIFk5As96SHyR1ZNJfGbYZbrzyNKcs5mayrdwJHf Huma6wzCRfniL3kiCx0ozXSXgBnSATKF29tFJwuegIk3DKgKXJyUjy2TNgv0Sa0xszji joQt1rORcEbu1P3R6XIuJYY3QEB/tHdVnkohk2N2tfPs5WU+zJFX/orOWOtprYWUTdN3 qwtKJgb82qCt2+kLA/bjO4oABDA9SJSDwhPp5y3kqCctT2ygJCRwW7qZ1T/GB0CyptIJ eoQkdXDcukwkTVSBnMyg+q2TbtDw+xJ8pTNv57mPNDYLTX+r0qTjqGQ851BxyfAXNFDD 0ckA== X-Gm-Message-State: AC+VfDxKXD9l5hyEz/62fbJTIwWyj6CiBivHpOGp8sIyz7Ue0y1Lcn1M nEHlieB/aPE4fEMjZaJX98A= X-Google-Smtp-Source: ACHHUZ4CnESNgKf2MlezH4s3DCtDkik+QVMr2WtnXejWDaMJ55d+3hRh640wmo8yJZi9qvEIVubjUg== X-Received: by 2002:a1f:c1c3:0:b0:463:b57a:e927 with SMTP id r186-20020a1fc1c3000000b00463b57ae927mr9637913vkf.4.1687467523563; Thu, 22 Jun 2023 13:58:43 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:43 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Huacai Chen , Mike Rapoport Subject: [PATCH v5 23/33] loongarch: Convert various functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:35 -0700 Message-Id: <20230622205745.79707-24-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/loongarch/include/asm/pgalloc.h | 27 +++++++++++++++------------ arch/loongarch/mm/pgtable.c | 7 ++++--- 2 files changed, 19 insertions(+), 15 deletions(-) diff --git a/arch/loongarch/include/asm/pgalloc.h b/arch/loongarch/include/asm/pgalloc.h index af1d1e4a6965..23f5b1107246 100644 --- a/arch/loongarch/include/asm/pgalloc.h +++ b/arch/loongarch/include/asm/pgalloc.h @@ -45,9 +45,9 @@ extern void pagetable_init(void); extern pgd_t *pgd_alloc(struct mm_struct *mm); #define __pte_free_tlb(tlb, pte, address) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \ } while (0) #ifndef __PAGETABLE_PMD_FOLDED @@ -55,18 +55,18 @@ do { \ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) { pmd_t *pmd; - struct page *pg; + struct ptdesc *ptdesc; - pg = alloc_page(GFP_KERNEL_ACCOUNT); - if (!pg) + ptdesc = pagetable_alloc(GFP_KERNEL_ACCOUNT, 0); + if (!ptdesc) return NULL; - if (!pgtable_pmd_page_ctor(pg)) { - __free_page(pg); + if (!pagetable_pmd_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - pmd = (pmd_t *)page_address(pg); + pmd = ptdesc_address(ptdesc); pmd_init(pmd); return pmd; } @@ -80,10 +80,13 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address) { pud_t *pud; + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, 0); - pud = (pud_t *) __get_free_page(GFP_KERNEL); - if (pud) - pud_init(pud); + if (!ptdesc) + return NULL; + pud = ptdesc_address(ptdesc); + + pud_init(pud); return pud; } diff --git a/arch/loongarch/mm/pgtable.c b/arch/loongarch/mm/pgtable.c index 36a6dc0148ae..5bd102b51f7c 100644 --- a/arch/loongarch/mm/pgtable.c +++ b/arch/loongarch/mm/pgtable.c @@ -11,10 +11,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm) { - pgd_t *ret, *init; + pgd_t *init, *ret = NULL; + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, 0); - ret = (pgd_t *) __get_free_page(GFP_KERNEL); - if (ret) { + if (ptdesc) { + ret = (pgd_t *)ptdesc_address(ptdesc); init = pgd_offset(&init_mm, 0UL); pgd_init(ret); memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD, From patchwork Thu Jun 22 20:57:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289720 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2D796C001DF for ; Thu, 22 Jun 2023 21:02:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231756AbjFVVCW (ORCPT ); Thu, 22 Jun 2023 17:02:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231645AbjFVVB0 (ORCPT ); Thu, 22 Jun 2023 17:01:26 -0400 Received: from mail-yb1-xb33.google.com (mail-yb1-xb33.google.com [IPv6:2607:f8b0:4864:20::b33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 37FC92118; Thu, 22 Jun 2023 13:59:31 -0700 (PDT) Received: by mail-yb1-xb33.google.com with SMTP id 3f1490d57ef6-bacf685150cso7079154276.3; Thu, 22 Jun 2023 13:59:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467525; x=1690059525; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=hySW7brzBg7/Cj99gTTdUd3MvFvqZB/M9ynkCaO3FFc=; b=kdBMDjj5wIp60ZYLcmWrdpMg4HGlypB71kW8hDPlIqh35A3b+v1T4Y1ydaWZz/xhee ZA5Wg86cVGIjXA/B7jKyd7KddQnHiyBrO7oSeao90//6ecohToH/3Eu0AvlHwhcP3OFV 2LpxjpRaH/c4lq6Z4eUITJ7RmwHPPRTtaIS3uYsOOd8x22FkyOEoLStjCJ6IEsjRHWMb 9n4Ph82ODGWg2AiQDJBhn0Lv8MIpG0JlDo4by6Q29EoMH8NyeBmUg+qti5r0raRohKmw K67ualO2cW/10KKjteAwcv5HaO3xkHdj+vI7ODmKcr0ceaF2dvSo3pCSjKcanq/h5Cgw ij4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467525; x=1690059525; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hySW7brzBg7/Cj99gTTdUd3MvFvqZB/M9ynkCaO3FFc=; b=gBWb3nJq3WhNluTB2MmdiMHgkEBu5hQ4XMb/SLYssSPASEau7bFFnYsuhimABJPyVx ugF3FQoAb1ZQrV/IZRgFmzZRVbZglQVQsM5RC2RHQ/5wf3wls+uGdEkdT43UJA697IgB psT63n+4XhR/AezR2yiMr58NrJO3UQRAOtuQDK0b3KHf4exWtfLm0W94x3saIBCPROtm e757Gsql9Ouhn6vli2W8nXqc1BuKjPW6Kptv/mxuwI2kvjpNca68BXIkAbWgE8GxZB5O 8pESz6OKF2Nke49KrTQwjEenhJ25T3VFedvLJ+MpO2skt/myZGQ5RuS/vzUOQvbtxTP1 P2Pw== X-Gm-Message-State: AC+VfDwnIZPY2brFXC+d6bf7aw7tASWE1QR14pbdYj85OIPqbVRcY4r8 XSXgev7r7kIzLGbzRcPucmJHBaDzEtDKKA== X-Google-Smtp-Source: ACHHUZ57HMpnicW72R7dp4/5KYNv6JBaVpOvftGFkmzTzwziBVHjkWFtItA58L9caDWgi5cpht4WKg== X-Received: by 2002:a25:ced2:0:b0:bd5:8616:2579 with SMTP id x201-20020a25ced2000000b00bd586162579mr16452165ybe.36.1687467525581; Thu, 22 Jun 2023 13:58:45 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:45 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Geert Uytterhoeven , Mike Rapoport Subject: [PATCH v5 24/33] m68k: Convert various functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:36 -0700 Message-Id: <20230622205745.79707-25-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) Acked-by: Geert Uytterhoeven --- arch/m68k/include/asm/mcf_pgalloc.h | 43 ++++++++++++++-------------- arch/m68k/include/asm/sun3_pgalloc.h | 8 +++--- arch/m68k/mm/motorola.c | 4 +-- 3 files changed, 28 insertions(+), 27 deletions(-) diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h index 5c2c0a864524..790ade4e778e 100644 --- a/arch/m68k/include/asm/mcf_pgalloc.h +++ b/arch/m68k/include/asm/mcf_pgalloc.h @@ -7,20 +7,20 @@ extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { - free_page((unsigned long) pte); + pagetable_free(virt_to_ptdesc(pte)); } extern const char bad_pmd_string[]; extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) { - unsigned long page = __get_free_page(GFP_DMA); + struct ptdesc *ptdesc = pagetable_alloc((GFP_DMA | __GFP_ZERO) & + ~__GFP_HIGHMEM, 0); - if (!page) + if (!ptdesc) return NULL; - memset((void *)page, 0, PAGE_SIZE); - return (pte_t *) (page); + return ptdesc_address(ptdesc); } extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) @@ -35,36 +35,34 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable, unsigned long address) { - struct page *page = virt_to_page(pgtable); + struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { - struct page *page = alloc_pages(GFP_DMA, 0); + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0); pte_t *pte; - if (!page) + if (!ptdesc) return NULL; - if (!pgtable_pte_page_ctor(page)) { - __free_page(page); + if (!pagetable_pte_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - pte = page_address(page); - clear_page(pte); - + pte = ptdesc_address(ptdesc); return pte; } static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) { - struct page *page = virt_to_page(pgtable); + struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } /* @@ -75,16 +73,19 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - free_page((unsigned long) pgd); + pagetable_free(virt_to_ptdesc(pgd)); } static inline pgd_t *pgd_alloc(struct mm_struct *mm) { pgd_t *new_pgd; + struct ptdesc *ptdesc = pagetable_alloc((GFP_DMA | GFP_NOWARN) & + ~__GFP_HIGHMEM, 0); - new_pgd = (pgd_t *)__get_free_page(GFP_DMA | __GFP_NOWARN); - if (!new_pgd) + if (!ptdesc) return NULL; + new_pgd = ptdesc_address(ptdesc); + memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t)); memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT); return new_pgd; diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h index 198036aff519..ff48573db2c0 100644 --- a/arch/m68k/include/asm/sun3_pgalloc.h +++ b/arch/m68k/include/asm/sun3_pgalloc.h @@ -17,10 +17,10 @@ extern const char bad_pmd_string[]; -#define __pte_free_tlb(tlb,pte,addr) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +#define __pte_free_tlb(tlb, pte, addr) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \ } while (0) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index c75984e2d86b..594575a0780c 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -161,7 +161,7 @@ void *get_pointer_table(int type) * m68k doesn't have SPLIT_PTE_PTLOCKS for not having * SMP. */ - pgtable_pte_page_ctor(virt_to_page(page)); + pagetable_pte_ctor(virt_to_ptdesc(page)); } mmu_page_ctor(page); @@ -201,7 +201,7 @@ int free_pointer_table(void *table, int type) list_del(dp); mmu_page_dtor((void *)page); if (type == TABLE_PTE) - pgtable_pte_page_dtor(virt_to_page((void *)page)); + pagetable_pte_dtor(virt_to_ptdesc((void *)page)); free_page (page); return 1; } else if (ptable_list[type].next != dp) { From patchwork Thu Jun 22 20:57:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289721 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13D2EC001DE for ; Thu, 22 Jun 2023 21:02:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231831AbjFVVCd (ORCPT ); Thu, 22 Jun 2023 17:02:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231429AbjFVVBb (ORCPT ); Thu, 22 Jun 2023 17:01:31 -0400 Received: from mail-yb1-xb33.google.com (mail-yb1-xb33.google.com [IPv6:2607:f8b0:4864:20::b33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D2642128; Thu, 22 Jun 2023 13:59:33 -0700 (PDT) Received: by mail-yb1-xb33.google.com with SMTP id 3f1490d57ef6-bd61dd9a346so7344465276.2; Thu, 22 Jun 2023 13:59:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467528; x=1690059528; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Z2eVDlXL8alglJUGVXcc8JA7ix0brgT+4DYqdXjkOuM=; b=DbS/FVmft5J2VICO+Nf92XNy2wvgGSGG4msWs7E9V6KxYzm+tSzGTprRX7LY1Az4z2 YpRpjh1gFRRLJ/li9beG6PIvlUHG9ZRwTYplGkWymenSAyOrWC24owgK1fhjKR3yrEtN hDpVadLC+93vTqzcu4H8sHAK66wH4JJJgH7pIr7Eko07frtpGYI2AQVOUDXreCJkOXFd 1tssjWaKiQ/O8SbW0+/XdEB5l3eXLYaeBTMZyr+OokbQWbFNHBYbcUGqZxcWlMHvdqKX xSAVDlOu/6aRWjk6xB/QGaUjzCCA1KdGOVBnKZ7vKSpcGAQnSE9HW2pjZqAURJ5Ds3lR MAFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467528; x=1690059528; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Z2eVDlXL8alglJUGVXcc8JA7ix0brgT+4DYqdXjkOuM=; b=MUFSLbHDrwOb80S8SItjctWLsKsVVLgjE5O2K4VVNoAEKAHwqe8SUE/gdc3t5H3QOb 4rsTdABPYtsN4JjPJ4BDHZGog0PQ++3fKbkM78gtjiP9FNuDsc6VPUDrFe78LS09qhPY lf3n5uaSEUUcYGRzXdU0fHFF1rCUxw+Ec4y3aNeOJo9SmZRUd58eyrB+AG8//FCaAT77 tU2ziI8Eaemh2C2QFhK71nUXptq5kMMP9D1v+0XSeu1/YrNJq3UPQ76Bngy0TTYXOUk7 yviyahZk3nyn92mU4hY2GgpwiWGfSa8LIyOAmv2qCL9MgZtfAgueY+2frhlrxHU7KBvY McjQ== X-Gm-Message-State: AC+VfDzvLhe5pC/n1KUBqx9oK5Ra1mBwd/cAMrnLwk89/YyqXr2cJvJY nUdvo9Y00gIed6VupVkzM6Y= X-Google-Smtp-Source: ACHHUZ6vkVdQ+2aFbexAEsw0zpg6DZHD2/vRtLHLUIl/mOJbyXKI4RGZmCd4L5PdfTZt6ngBy4nBHA== X-Received: by 2002:a25:44d:0:b0:bfe:e65b:cd1 with SMTP id 74-20020a25044d000000b00bfee65b0cd1mr5470842ybe.46.1687467527711; Thu, 22 Jun 2023 13:58:47 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:47 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Thomas Bogendoerfer , Mike Rapoport Subject: [PATCH v5 25/33] mips: Convert various functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:37 -0700 Message-Id: <20230622205745.79707-26-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/mips/include/asm/pgalloc.h | 32 ++++++++++++++++++-------------- arch/mips/mm/pgtable.c | 8 +++++--- 2 files changed, 23 insertions(+), 17 deletions(-) diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h index f72e737dda21..40e40a7eb94a 100644 --- a/arch/mips/include/asm/pgalloc.h +++ b/arch/mips/include/asm/pgalloc.h @@ -51,13 +51,13 @@ extern pgd_t *pgd_alloc(struct mm_struct *mm); static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - free_pages((unsigned long)pgd, PGD_TABLE_ORDER); + pagetable_free(virt_to_ptdesc(pgd)); } -#define __pte_free_tlb(tlb,pte,address) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +#define __pte_free_tlb(tlb, pte, address) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \ } while (0) #ifndef __PAGETABLE_PMD_FOLDED @@ -65,18 +65,18 @@ do { \ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) { pmd_t *pmd; - struct page *pg; + struct ptdesc *ptdesc; - pg = alloc_pages(GFP_KERNEL_ACCOUNT, PMD_TABLE_ORDER); - if (!pg) + ptdesc = pagetable_alloc(GFP_KERNEL_ACCOUNT, PMD_TABLE_ORDER); + if (!ptdesc) return NULL; - if (!pgtable_pmd_page_ctor(pg)) { - __free_pages(pg, PMD_TABLE_ORDER); + if (!pagetable_pmd_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - pmd = (pmd_t *)page_address(pg); + pmd = ptdesc_address(ptdesc); pmd_init(pmd); return pmd; } @@ -90,10 +90,14 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address) { pud_t *pud; + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, + PUD_TABLE_ORDER); - pud = (pud_t *) __get_free_pages(GFP_KERNEL, PUD_TABLE_ORDER); - if (pud) - pud_init(pud); + if (!ptdesc) + return NULL; + pud = ptdesc_address(ptdesc); + + pud_init(pud); return pud; } diff --git a/arch/mips/mm/pgtable.c b/arch/mips/mm/pgtable.c index b13314be5d0e..1506e458040d 100644 --- a/arch/mips/mm/pgtable.c +++ b/arch/mips/mm/pgtable.c @@ -10,10 +10,12 @@ pgd_t *pgd_alloc(struct mm_struct *mm) { - pgd_t *ret, *init; + pgd_t *init, *ret = NULL; + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, + PGD_TABLE_ORDER); - ret = (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_TABLE_ORDER); - if (ret) { + if (ptdesc) { + ret = ptdesc_address(ptdesc); init = pgd_offset(&init_mm, 0UL); pgd_init(ret); memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD, From patchwork Thu Jun 22 20:57:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289722 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DAF94C001B1 for ; Thu, 22 Jun 2023 21:02:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231841AbjFVVCg (ORCPT ); Thu, 22 Jun 2023 17:02:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49108 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231571AbjFVVBk (ORCPT ); Thu, 22 Jun 2023 17:01:40 -0400 Received: from mail-qk1-x734.google.com (mail-qk1-x734.google.com [IPv6:2607:f8b0:4864:20::734]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 296C626B9; Thu, 22 Jun 2023 13:59:35 -0700 (PDT) Received: by mail-qk1-x734.google.com with SMTP id af79cd13be357-76246351f0cso664289785a.1; Thu, 22 Jun 2023 13:59:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467530; x=1690059530; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=dSsj72OOim1moFehILf4IJ+e4eXIj/xtfG6kDsakLCY=; b=F65orfGp6lPWpCrD9sAMHQjbb/7dPkBeEZwnbqaqoaG+jHKHFKOpyv5U+mRswUePBl O+w6mgJQE0929R7HfQnempO9NwPEm6qT8tc34OERTuMiOZXiohUbt3LRN+VbVJEKUKkc tcmSj8t+FV4PGg1S/0RDnwUBY8C4sUVvlY/c/d4jqvMe/jl29yqPCuiM1limtTye3/Mt Xl+0XJrX90O7Fe0pzMoOa3o991eJyDuyXmsTPhqv2ERTFkUraPYZpwk4UgntXrYBzy7x tG0gCzAga9PV8hPLOnhqVRtX7sCVqxvHBH7A5BvtHK+faRxZPp8TVFIuHWDaefij0y+Q y3/A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467530; x=1690059530; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=dSsj72OOim1moFehILf4IJ+e4eXIj/xtfG6kDsakLCY=; b=fQn2BQfRBWDwhK6bl3Yk5ZWl2KYF4vtO+6N2uO1CMB4vxA19Aq/RFpLX5ggv0uNd2+ LlPJoU5LZF/OEYzkOLxvdbfmidcYT2hn5rni34bDjO69mr+DhRq7MLS9pA4tYRKGz64H xDXgXqXUxWZ8k/I43TmqjVy2anQ5wluYyY5bCs1lQovpDwijcJG/Tbx7LpnpqlTKhUpQ 5lhLXBBlJnkdJWSsDBLEvAdIlEov2r9HJkaMB7C4yJP4LjAe64iSLxBXTjwjlSBisiJW w3FLkYOrGJmuR1gnuUVDJF9Qux19iu0gGh1a2bQ044OIpTvHr+cj1A6Jb/amy3jVBoJn vWYw== X-Gm-Message-State: AC+VfDzatVY9ZL72Epa6h2DjLj3HGPCmL6wRVaEsqSjAprfBGHW8L/nC yfEK74bQ+gaF/zt3kRLldlM= X-Google-Smtp-Source: ACHHUZ7lI8iuHKQsEsdck4SAEFHmt9QQs6haysqfy7wOJRfjq9Goxv7w27b3gm3WMVCksX2Z3AB04Q== X-Received: by 2002:a05:620a:84c:b0:762:883a:f5a6 with SMTP id u12-20020a05620a084c00b00762883af5a6mr11201137qku.41.1687467529856; Thu, 22 Jun 2023 13:58:49 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:49 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Dinh Nguyen , Mike Rapoport Subject: [PATCH v5 26/33] nios2: Convert __pte_free_tlb() to use ptdescs Date: Thu, 22 Jun 2023 13:57:38 -0700 Message-Id: <20230622205745.79707-27-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) Acked-by: Dinh Nguyen --- arch/nios2/include/asm/pgalloc.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/nios2/include/asm/pgalloc.h b/arch/nios2/include/asm/pgalloc.h index ecd1657bb2ce..ce6bb8e74271 100644 --- a/arch/nios2/include/asm/pgalloc.h +++ b/arch/nios2/include/asm/pgalloc.h @@ -28,10 +28,10 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, extern pgd_t *pgd_alloc(struct mm_struct *mm); -#define __pte_free_tlb(tlb, pte, addr) \ - do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), (pte)); \ +#define __pte_free_tlb(tlb, pte, addr) \ + do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \ } while (0) #endif /* _ASM_NIOS2_PGALLOC_H */ From patchwork Thu Jun 22 20:57:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289723 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E3D14C001DD for ; Thu, 22 Jun 2023 21:02:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231752AbjFVVCv (ORCPT ); Thu, 22 Jun 2023 17:02:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231689AbjFVVBt (ORCPT ); Thu, 22 Jun 2023 17:01:49 -0400 Received: from mail-yb1-xb2a.google.com (mail-yb1-xb2a.google.com [IPv6:2607:f8b0:4864:20::b2a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E2E22D4F; Thu, 22 Jun 2023 13:59:37 -0700 (PDT) Received: by mail-yb1-xb2a.google.com with SMTP id 3f1490d57ef6-be3e2d172cbso6083479276.3; Thu, 22 Jun 2023 13:59:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467532; x=1690059532; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=0AnRv7d38hHUVaoAGins0CaWMMRgzo0GwUb20Y9YoSw=; b=iN2FzqOQCGlMw61BHmPlvHKCi1d4I+83kYFUJ+05be01GNIJnqIJIlehoUIlvwUaVM d/OWGkj4lxemSlNpzjA9vagyXYnKzygaSW8qGOFAS4kKsFBEkls14ZpomWkO/T200zVH qlBgWwV7Su2BIgoVpSS5ByD582z4lmvR8XQqnfXM/x/kcWnUDA1l8EH7UvhzGe/a36fq qzeiYGkPPC0vXVHADUCnvEqnbyiXBVZ5TrMcTAX4hM8+UdpZhrwM5A+KI61Sp+b5buW5 P1n/PN9/guunik8p7869oduuP/QEBbbnDZw3HC5F5neXLeBMAmnYdB3CF11sup6NCeqV 0mxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467532; x=1690059532; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=0AnRv7d38hHUVaoAGins0CaWMMRgzo0GwUb20Y9YoSw=; b=XzAroTsseAmGgVE0stXUQGvuGegHjqBCuAIrlPZ11Xiu9NZQk5dM8dm2PcVpsZqG8W QTaVrLu8ZuwGCE3ar5IWbGJ9H7Xi6eGVU9TUReHp5A14iIT/1SrC84IDa5u4SkTQD8zp YwQjUU3pc4NQ7/tIym4o+GMohv8iwAZL8R6aFWjifOsZraXj1G3pRmU16WhAZKlj8WBa O1YIQM6tcJOXSePuTzzdFngL88JoABDZ3w8bUU1/drgCVZB4oj1spm62POi643yBU8fX RtXJKyFV33QLB5RtqB7o98iajWw5VeYBK09Q54f2shDtfhJZI/ivKO3l2YIosaf4iZFw chTA== X-Gm-Message-State: AC+VfDzRT95AH5kgbWtuAtZIU3Bv8+qd5P+DX52Bgkn+79BMHn0lSEbz cH1XA/8eioIP2Q5cAQgMaUg= X-Google-Smtp-Source: ACHHUZ4L0O/ZcQJNV1a5FO9DGWMsGkRAWmV2oZ5bMU1z3VMLdsFOJ9p+X6w0stYIYuPTzeAJzZnheQ== X-Received: by 2002:a05:6902:1cf:b0:bff:78f9:ffcd with SMTP id u15-20020a05690201cf00b00bff78f9ffcdmr4883793ybh.38.1687467532210; Thu, 22 Jun 2023 13:58:52 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:51 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Jonas Bonn , Mike Rapoport Subject: [PATCH v5 27/33] openrisc: Convert __pte_free_tlb() to use ptdescs Date: Thu, 22 Jun 2023 13:57:39 -0700 Message-Id: <20230622205745.79707-28-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/openrisc/include/asm/pgalloc.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h index b7b2b8d16fad..c6a73772a546 100644 --- a/arch/openrisc/include/asm/pgalloc.h +++ b/arch/openrisc/include/asm/pgalloc.h @@ -66,10 +66,10 @@ extern inline pgd_t *pgd_alloc(struct mm_struct *mm) extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm); -#define __pte_free_tlb(tlb, pte, addr) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), (pte)); \ +#define __pte_free_tlb(tlb, pte, addr) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \ } while (0) #endif From patchwork Thu Jun 22 20:57:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289724 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BDFD9C0015E for ; Thu, 22 Jun 2023 21:02:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231684AbjFVVCz (ORCPT ); Thu, 22 Jun 2023 17:02:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231342AbjFVVBx (ORCPT ); Thu, 22 Jun 2023 17:01:53 -0400 Received: from mail-qk1-x729.google.com (mail-qk1-x729.google.com [IPv6:2607:f8b0:4864:20::729]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23C7626AA; Thu, 22 Jun 2023 13:59:42 -0700 (PDT) Received: by mail-qk1-x729.google.com with SMTP id af79cd13be357-763ca800ca9so211123785a.2; Thu, 22 Jun 2023 13:59:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467534; x=1690059534; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=0VT4pshsioiI3cvxCaccwxS3QnyiZywL9n+n1KwplTM=; b=TppJif0BHo6hnPlcQL9KC8WSGCLNYWnZ5TWCUGNi9Yse0euGomuzrLUl2hHWg+xOcN AtrgkmMfCUjy9KLBFfUuEG2s0Ihpe5FTyr5metIKFf6zbktuYMraC91YUKi/KWfbgyVG lvJTabP9ygpBud7nE/7yiG7FvQtoPgmdiRSK2sy5kuq4cEPaMRzkmi7ezbneoKdvpKLs RzOr7Yyw6OYIFnxYXzw+JpXxuwUJk+Gv++J63O8G6cjfEEYoESBKv3QgdI5Gny8Js2Dl u397T8c8ML9be3fyfcRz9z/KIcbHqeskiUObgkxyvqYvJ9bImtnagHyVKviaetoXJ3oC RmxQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467534; x=1690059534; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=0VT4pshsioiI3cvxCaccwxS3QnyiZywL9n+n1KwplTM=; b=Ii7KCRVBp11lC86JLhNyK5SAlC7Ooe7VpjOY43uGxhakRfWJPkNFEjux9+aG8oJZKU uBKoa+VlGlDwB/NRxJjjZL1kZ61ny2U94Kam2gCDXJqHsYYw4uFEZ8el79MAwZHn25Rl RqQyLUIPj0QhySDxXTjDkVwOfKINP+aETdwb9+qMEXvDX1mAhoVBUq/CiM7sNakQqia8 g2kFpRSgIbfcKXFArtBdIrmR5UIclwMzYVi5uFh/CcTR/G6j76eXIoEm52PRMexdmsv+ 8bqJpGtZe81p1R7gv0Tow42tHKvKvvAU5kGOMd/3H1CRENebdJmc9EHIlubZFN9IhVkX KlIw== X-Gm-Message-State: AC+VfDyAN1sx6Qz7FxkTc4Kk/Tb5wSbOYXvSkOdvFtVn4indYQPjqAMS 4Zm+V78wLscpeWQi2XDQNIc= X-Google-Smtp-Source: ACHHUZ4bdUBNX+PQFkV86pN6qHx4P8fCpAOyeLEg1MMh49m7gk0ETU/OT0t4ehwniJxuP5YNErTIxg== X-Received: by 2002:a05:620a:2455:b0:763:de2c:1a8a with SMTP id h21-20020a05620a245500b00763de2c1a8amr6902545qkn.57.1687467534343; Thu, 22 Jun 2023 13:58:54 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:54 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Paul Walmsley , Palmer Dabbelt , Mike Rapoport Subject: [PATCH v5 28/33] riscv: Convert alloc_{pmd, pte}_late() to use ptdescs Date: Thu, 22 Jun 2023 13:57:40 -0700 Message-Id: <20230622205745.79707-29-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) Acked-by: Palmer Dabbelt Acked-by: Mike Rapoport (IBM) --- arch/riscv/include/asm/pgalloc.h | 8 ++++---- arch/riscv/mm/init.c | 16 ++++++---------- 2 files changed, 10 insertions(+), 14 deletions(-) diff --git a/arch/riscv/include/asm/pgalloc.h b/arch/riscv/include/asm/pgalloc.h index 59dc12b5b7e8..d169a4f41a2e 100644 --- a/arch/riscv/include/asm/pgalloc.h +++ b/arch/riscv/include/asm/pgalloc.h @@ -153,10 +153,10 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) #endif /* __PAGETABLE_PMD_FOLDED */ -#define __pte_free_tlb(tlb, pte, buf) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +#define __pte_free_tlb(tlb, pte, buf) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte));\ } while (0) #endif /* CONFIG_MMU */ diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 4b95d8999120..efff9c752fcf 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -354,12 +354,10 @@ static inline phys_addr_t __init alloc_pte_fixmap(uintptr_t va) static phys_addr_t __init alloc_pte_late(uintptr_t va) { - unsigned long vaddr; - - vaddr = __get_free_page(GFP_KERNEL); - BUG_ON(!vaddr || !pgtable_pte_page_ctor(virt_to_page((void *)vaddr))); + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, 0); - return __pa(vaddr); + BUG_ON(!ptdesc || !pagetable_pte_ctor(ptdesc)); + return __pa((pte_t *)ptdesc_address(ptdesc)); } static void __init create_pte_mapping(pte_t *ptep, @@ -437,12 +435,10 @@ static phys_addr_t __init alloc_pmd_fixmap(uintptr_t va) static phys_addr_t __init alloc_pmd_late(uintptr_t va) { - unsigned long vaddr; - - vaddr = __get_free_page(GFP_KERNEL); - BUG_ON(!vaddr || !pgtable_pmd_page_ctor(virt_to_page((void *)vaddr))); + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, 0); - return __pa(vaddr); + BUG_ON(!ptdesc || !pagetable_pmd_ctor(ptdesc)); + return __pa((pmd_t *)ptdesc_address(ptdesc)); } static void __init create_pmd_mapping(pmd_t *pmdp, From patchwork Thu Jun 22 20:57:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289725 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DEF40EB64DD for ; Thu, 22 Jun 2023 21:03:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231572AbjFVVDE (ORCPT ); Thu, 22 Jun 2023 17:03:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231582AbjFVVBy (ORCPT ); Thu, 22 Jun 2023 17:01:54 -0400 Received: from mail-qk1-x731.google.com (mail-qk1-x731.google.com [IPv6:2607:f8b0:4864:20::731]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 358FC2D57; Thu, 22 Jun 2023 13:59:44 -0700 (PDT) Received: by mail-qk1-x731.google.com with SMTP id af79cd13be357-763dc87aac4so187168085a.2; Thu, 22 Jun 2023 13:59:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467536; x=1690059536; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=NG13BwzmmAIpXpcduEwvRHFbS3iQhU18W2JpKLteVDY=; b=bI7F5jd8U0pmZoDCjrDdgbVISfzJlV2CUqYAibSVdHZ1OfrWu+Og6tKjTlcLZOSWFx f+VE9wjvDVgQCRSbWCOuVgmL30v4mkM+TeOOIsHTqjG+MpjulK0jZg8Kight1gJqL3EJ uelPGFi4K83pZcziIo91nBQ/Xb1a7VXoH5rDwteSo81u0B0E0AB9v0ZYlD/3EFJOnXaR LHJhz4j3eKvixa2uY3tcUc56YA7rm/NnSwLp194pufjXDiSsyScPz/VvaVef5k0S3cDu KA06LddfVd5MnGrcrI8kMVYj85Gsgf9HVHh6xfDQTCqtTE6ZYhHSEi5n5/a6D65T/xzp 1jRA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467536; x=1690059536; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=NG13BwzmmAIpXpcduEwvRHFbS3iQhU18W2JpKLteVDY=; b=Zec/8Gg/5ma+s64Vg8jg76fvFofHHZrKYGf2vc8s1tBT3b+iMtYy+rX219bjTiOR9z rtJ1Gvn2U8Jqrd67xWCK3Zv9dJWKWAqA2DAkg10gcaSD+AcZG/5FO3XyivmTL50s6yWF 6/7X43pCuFJy0uD82OB7nKub64HRJ3H0ozrrdfJmu7eTuLAxg/dWSlUruLxDvlrZBb3d 7YB25Utj8ID+nM9kgvJuHle2SnnGEvkMuxYTPeED4Fysf8bjVBghrSTd9Dg1rNVGfEAM wlukCLC2qf27dYn4ZNHlJHf0jYFkIS9tzGPVFR+V5No9LJ+dLpQQIEsCZx1nxuI+CRNE ws8A== X-Gm-Message-State: AC+VfDwfdKbp1+Ldzo8nkW5C9B7vONYmJ+5nNCyL2Z4UYXhS3LVMeseY kot+zJUuD2MDq1842biWFCI= X-Google-Smtp-Source: ACHHUZ6PptFNgBqCV4/Z0wvxz/N4kUJPrg8w5rC/9pu7Gesur9H1ncl000IRfhTCjlej4fSGBBngjg== X-Received: by 2002:a05:620a:c55:b0:75e:d11d:51ab with SMTP id u21-20020a05620a0c5500b0075ed11d51abmr23662404qki.9.1687467536577; Thu, 22 Jun 2023 13:58:56 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:56 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Yoshinori Sato , Geert Uytterhoeven , John Paul Adrian Glaubitz , Mike Rapoport Subject: [PATCH v5 29/33] sh: Convert pte_free_tlb() to use ptdescs Date: Thu, 22 Jun 2023 13:57:41 -0700 Message-Id: <20230622205745.79707-30-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents. Also cleans up some spacing issues. Signed-off-by: Vishal Moola (Oracle) Reviewed-by: Geert Uytterhoeven Acked-by: John Paul Adrian Glaubitz Acked-by: Mike Rapoport (IBM) --- arch/sh/include/asm/pgalloc.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h index a9e98233c4d4..5d8577ab1591 100644 --- a/arch/sh/include/asm/pgalloc.h +++ b/arch/sh/include/asm/pgalloc.h @@ -2,6 +2,7 @@ #ifndef __ASM_SH_PGALLOC_H #define __ASM_SH_PGALLOC_H +#include #include #define __HAVE_ARCH_PMD_ALLOC_ONE @@ -31,10 +32,10 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, set_pmd(pmd, __pmd((unsigned long)page_address(pte))); } -#define __pte_free_tlb(tlb,pte,addr) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), (pte)); \ +#define __pte_free_tlb(tlb, pte, addr) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \ } while (0) #endif /* __ASM_SH_PGALLOC_H */ From patchwork Thu Jun 22 20:57:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289832 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97040C001DC for ; Thu, 22 Jun 2023 21:03:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231894AbjFVVDM (ORCPT ); Thu, 22 Jun 2023 17:03:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231712AbjFVVBz (ORCPT ); Thu, 22 Jun 2023 17:01:55 -0400 Received: from mail-yb1-xb2d.google.com (mail-yb1-xb2d.google.com [IPv6:2607:f8b0:4864:20::b2d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3E1C22D60; Thu, 22 Jun 2023 13:59:47 -0700 (PDT) Received: by mail-yb1-xb2d.google.com with SMTP id 3f1490d57ef6-bff89873d34so1836533276.2; Thu, 22 Jun 2023 13:59:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467539; x=1690059539; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=2x+E7/HO6cxS1FKNHsH+YAjV99GeoJ7wX0XOkEEtc8g=; b=YrTQVBS1aaA3+7mVapNSFssjb2+AQ4IJNUOZvGKIi0FFDtk+PI4lWjji8UMW0kBniw NnyjjbhzJwR9iWxQ73lOHY6xUHgKO2FQSJubgoxvZQoc6uqJluiv8iO+GgjzyRPTTUNL H+9Lt9/vRpqFrdhngSNsPgL94g8nz/f64RVJUcVyBqSkPnGnipXpH3S7tTsIQsIL/Sfj /1Ey+dh+UNfiOBDZVuuR0MUQqWyu0BLKscPyo1/sCfwSnYduy/XWfVP10dsKPKfMX/jd CyoAvKAcNWnuFLqmsDX4R/ZAToeYgRboOEEoeu7mlCBRRzYoIoPibXR4stY18tIHtLmi 9aNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467539; x=1690059539; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2x+E7/HO6cxS1FKNHsH+YAjV99GeoJ7wX0XOkEEtc8g=; b=SL6oGL1hxpoOND1LpcLeOcRHdYUNJ2zlK7h/j33ThHyiWfzF68wxZK4UdxPZUYa2O0 1sdN9Csode0zZepx4pjLQKH/4AKoWNay4/qRuA/kSq4zt102Xs8HLCnYa6syjI/K62Jk u53PED2OLsrcpwG+xz2CPqDZmU/ra/xCnZud9aUwdQBtd2mx619GSNKSpwWLvWdpILQ/ AB3gBaOvDg/XD7NuyBgvPeH7DNI+s+pvOuHo3+kE1tOJyYWwQdArc+gslBSgptxukA4v xpLzAiWqtWIRzVVzOdkqpjGYvscESQlCFn/AQqhBXq725c0sEHg9n2zAo2TV6BlbS0B2 0QAA== X-Gm-Message-State: AC+VfDxkA3dVaAprHjr+vhDxwZUofbNCvvBxhE+8gExSH32UBB30A6fU z6Mp54c7T6rbPp4PoJVYwAQ= X-Google-Smtp-Source: ACHHUZ7RSJK82blK0n8uMP8fjUDg81SPK6py6Hg2BA1/I5Xa80rVzDG2S/aTt1mnsQBJvwPYu3STMQ== X-Received: by 2002:a25:2102:0:b0:bc8:914b:c83a with SMTP id h2-20020a252102000000b00bc8914bc83amr11442005ybh.22.1687467538676; Thu, 22 Jun 2023 13:58:58 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:58:58 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , "David S. Miller" , Mike Rapoport Subject: [PATCH v5 30/33] sparc64: Convert various functions to use ptdescs Date: Thu, 22 Jun 2023 13:57:42 -0700 Message-Id: <20230622205745.79707-31-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/sparc/mm/init_64.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 04f9db0c3111..105915cd2eee 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2893,14 +2893,15 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm) pgtable_t pte_alloc_one(struct mm_struct *mm) { - struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO); - if (!page) + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL | __GFP_ZERO, 0); + + if (!ptdesc) return NULL; - if (!pgtable_pte_page_ctor(page)) { - __free_page(page); + if (!pagetable_pte_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - return (pte_t *) page_address(page); + return ptdesc_address(ptdesc); } void pte_free_kernel(struct mm_struct *mm, pte_t *pte) @@ -2910,10 +2911,10 @@ void pte_free_kernel(struct mm_struct *mm, pte_t *pte) static void __pte_free(pgtable_t pte) { - struct page *page = virt_to_page(pte); + struct ptdesc *ptdesc = virt_to_ptdesc(pte); - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } void pte_free(struct mm_struct *mm, pgtable_t pte) From patchwork Thu Jun 22 20:57:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289833 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 65DA0C001DE for ; Thu, 22 Jun 2023 21:03:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231905AbjFVVDU (ORCPT ); Thu, 22 Jun 2023 17:03:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49280 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231527AbjFVVCD (ORCPT ); Thu, 22 Jun 2023 17:02:03 -0400 Received: from mail-yb1-xb2b.google.com (mail-yb1-xb2b.google.com [IPv6:2607:f8b0:4864:20::b2b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B3F72D6B; Thu, 22 Jun 2023 13:59:53 -0700 (PDT) Received: by mail-yb1-xb2b.google.com with SMTP id 3f1490d57ef6-bb15165ba06so6116030276.2; Thu, 22 Jun 2023 13:59:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467540; x=1690059540; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ES9RfFz84BcV9KH4Nk3AfkjPOEvVVRdPbPMSiTejLcw=; b=oM2eqoarO5mbV/RC9CFfzfiqtalAJnN4v5hz57x8U3YE+/nDsUrmXb6G6NrrfuA0hI XHlp77eZ+DzSkin9lWOejdHXde4PpTwM3RiXeCXAduuSgLDQHciXyNj0UWZkZs6yvfTo QiJ21UomG7h0wL2TX1WHwgye+s/VKR+Tvt1mxLr3lV1WjwsNROzbcgrXcLO9VnGSpeAH 7uCU00iH87QJVCo5EKIyfZlW0ogPYyMPi5bY1z7m39x6DegLfFGe3afEY/9WN7xyqGjN dkO4NEs5eZtRaUa3RiJYmwztOORKB/ecQ6EJlrLWdOw/VRXBlFmMwGL9APm0v6t4+G2k ZQDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467540; x=1690059540; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ES9RfFz84BcV9KH4Nk3AfkjPOEvVVRdPbPMSiTejLcw=; b=WwHT6LdkF+ijaeKCccisn/1jkP9Qyczfhq43XE2XY2AqfrqV3Z0+riJ53zFexqw5y7 Ibnw57NTYrK7HtZqgPhrFEQXZ2+HYPTtJH+8u+2+99Kz/rYBdjhj2Kx5k6xiNQKMLQoB 4wwAXusbvag067XnqL8c+med2GAxBZaVZwo41t1wYQwTVO65nOPJASoBONnzvPY9jlTW FyuM4oQyS2enbZFgHS1sSHIW3zWIcPUrZHnA+RXZ8WpZC0i+nZkamthvGRWGe1PE3c2X e1eOAoSY54H4RO9kO3J9H5MB0BkGzt7hqWKnzAzQMpcgfby8qdASmcZZY1gsYCsxmaGD bNuw== X-Gm-Message-State: AC+VfDxWZhG3f+wwlx1q/z4D1dTWyfABjdVdi0iiCaCnb1mezAvrsYVF 9a83TTOHM2OhTUZ81C0L0B8= X-Google-Smtp-Source: ACHHUZ6Ec2kbAX1UDgGMj9ZCyBvb/VNaStMToJEcOH7SUf7INOW9CMO0HLoZFa/KezNB/PETnccRFQ== X-Received: by 2002:a25:bc53:0:b0:ba7:db6c:c0eb with SMTP id d19-20020a25bc53000000b00ba7db6cc0ebmr10225049ybk.3.1687467540710; Thu, 22 Jun 2023 13:59:00 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.58.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:59:00 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , "David S. Miller" , Mike Rapoport Subject: [PATCH v5 31/33] sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents Date: Thu, 22 Jun 2023 13:57:43 -0700 Message-Id: <20230622205745.79707-32-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Part of the conversions to replace pgtable pte constructor/destructors with ptdesc equivalents. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/sparc/mm/srmmu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 13f027afc875..8393faa3e596 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -355,7 +355,8 @@ pgtable_t pte_alloc_one(struct mm_struct *mm) return NULL; page = pfn_to_page(__nocache_pa((unsigned long)ptep) >> PAGE_SHIFT); spin_lock(&mm->page_table_lock); - if (page_ref_inc_return(page) == 2 && !pgtable_pte_page_ctor(page)) { + if (page_ref_inc_return(page) == 2 && + !pagetable_pte_ctor(page_ptdesc(page))) { page_ref_dec(page); ptep = NULL; } @@ -371,7 +372,7 @@ void pte_free(struct mm_struct *mm, pgtable_t ptep) page = pfn_to_page(__nocache_pa((unsigned long)ptep) >> PAGE_SHIFT); spin_lock(&mm->page_table_lock); if (page_ref_dec_return(page) == 1) - pgtable_pte_page_dtor(page); + pagetable_pte_dtor(page_ptdesc(page)); spin_unlock(&mm->page_table_lock); srmmu_free_nocache(ptep, SRMMU_PTE_TABLE_SIZE); From patchwork Thu Jun 22 20:57:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289834 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69B71EB64DA for ; Thu, 22 Jun 2023 21:03:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230425AbjFVVD1 (ORCPT ); Thu, 22 Jun 2023 17:03:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49676 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231294AbjFVVCI (ORCPT ); Thu, 22 Jun 2023 17:02:08 -0400 Received: from mail-vs1-xe31.google.com (mail-vs1-xe31.google.com [IPv6:2607:f8b0:4864:20::e31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8EB42D7B; Thu, 22 Jun 2023 13:59:59 -0700 (PDT) Received: by mail-vs1-xe31.google.com with SMTP id ada2fe7eead31-440c14d6a5eso1666329137.0; Thu, 22 Jun 2023 13:59:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467543; x=1690059543; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=JRfRtQSkmDpdaHgWU+x8J8rVDSFtmuGYMRjnXDV0vQY=; b=JIPmtJWZzsFuYAbPd3iclg33SdIOk6GD+7bRoJGsXkLCA1qQrwoboYccPvVKSwty8z /qB14KJSfGNtyZY8gC2KXxRSZzLDqLeIztRDYfuoehM6XT+tgKnz6817MlJhyGs2y+Ff nzC5sPDHJyAHEqzN9xTnBixLp+PW75W3jhf77P4PsuZDMkZ6OcWV4Xi+Rqew178LHkOZ sutRPAF9NDYk2/4a4fGlPwKxe3Z/pKSq61jE0ZBiyKHaHi8RSPhHJpH4MRgs4uLl46tG QM0pvqokM6W0xltWNxHmZb4kL6K9Vi53nErkSfWOsX8epBIiO3LuoRLa0NZXa1LOWk1D I+ng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467543; x=1690059543; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=JRfRtQSkmDpdaHgWU+x8J8rVDSFtmuGYMRjnXDV0vQY=; b=BG6wh5cx4lee1M/r7N2wcFlabHcPZkuvm8FHpF+diM0jUzz0bLf92gU1pYgA1LKo4G ywCv1FVK7OtFm97eP8Nsl5hPvsl/X2WF1H2GDW57DPGsfxRDnRdEBdyH4ElvJ7MkCi6M zad2Gh6BcJTVyd9+mzAEYW+itcJ9lUkVkVQD3UnV76I03n5UqUN+4aPm7yIn0zh6kDSI iLqob4cm1mvHANQGBQ4aa8PWevwiUSZpawBEbyw1WyvtDagOS8jAXSPSunDSAhcZLAoT B0I2NInHBHVG7lzu02JNbFPXv5qOVSAMXSDJWFlUSeCJUENR6nfZDdjES8MEh/X32CKi poQg== X-Gm-Message-State: AC+VfDzv9FCTg7k0AJoWxmR91DNkXEH1nYE29e+q9Aj5BYYjhLdfOgy+ lg+qrbh0CQUwiON9C3BQZCNn56LP0lD2KQ== X-Google-Smtp-Source: ACHHUZ4B8dweYtEIi2rY8Mw0qtzsz5NxOVUlUIQPQfiDh4wzrLYoG70uIa1HADP+PMU/T07FaShgdg== X-Received: by 2002:a67:d087:0:b0:438:d4bd:f1f2 with SMTP id s7-20020a67d087000000b00438d4bdf1f2mr9462119vsi.22.1687467543144; Thu, 22 Jun 2023 13:59:03 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.59.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:59:02 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Richard Weinberger , Mike Rapoport Subject: [PATCH v5 32/33] um: Convert {pmd, pte}_free_tlb() to use ptdescs Date: Thu, 22 Jun 2023 13:57:44 -0700 Message-Id: <20230622205745.79707-33-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents. Also cleans up some spacing issues. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- arch/um/include/asm/pgalloc.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h index 8ec7cd46dd96..de5e31c64793 100644 --- a/arch/um/include/asm/pgalloc.h +++ b/arch/um/include/asm/pgalloc.h @@ -25,19 +25,19 @@ */ extern pgd_t *pgd_alloc(struct mm_struct *); -#define __pte_free_tlb(tlb,pte, address) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb),(pte)); \ +#define __pte_free_tlb(tlb, pte, address) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \ } while (0) #ifdef CONFIG_3_LEVEL_PGTABLES -#define __pmd_free_tlb(tlb, pmd, address) \ -do { \ - pgtable_pmd_page_dtor(virt_to_page(pmd)); \ - tlb_remove_page((tlb),virt_to_page(pmd)); \ -} while (0) \ +#define __pmd_free_tlb(tlb, pmd, address) \ +do { \ + pagetable_pmd_dtor(virt_to_ptdesc(pmd)); \ + tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(pmd)); \ +} while (0) #endif From patchwork Thu Jun 22 20:57:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13289835 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9951C001B1 for ; Thu, 22 Jun 2023 21:03:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231935AbjFVVDb (ORCPT ); Thu, 22 Jun 2023 17:03:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231443AbjFVVCT (ORCPT ); Thu, 22 Jun 2023 17:02:19 -0400 Received: from mail-yb1-xb2b.google.com (mail-yb1-xb2b.google.com [IPv6:2607:f8b0:4864:20::b2b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9BE930C5; Thu, 22 Jun 2023 14:00:03 -0700 (PDT) Received: by mail-yb1-xb2b.google.com with SMTP id 3f1490d57ef6-bff27026cb0so2083837276.1; Thu, 22 Jun 2023 14:00:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687467545; x=1690059545; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=UurGuuLzED1CKQ5+YtAa+uldlNlkULcrhOlEPtYgkts=; b=oQo8Ww3rkcQ6O4ERZYbbm7gIN+KUZJBSX76Jt+A0yqxzuaw5csFJ7AbMPXoNar1y+V tZQraeqybmf35Qo5xoKl1awKHEBN/Nxr+iHHL+iOhynJPYAD9oID72CJXajJ9Jf7DkVt j26rlavSXJqsTv4JH9m0aLFnC9iK42GCsz7JUCHqTbiCOXGPKTX89JvhbmgJctDtXiKK TITKlfKlRxN76qLZH8F23nvkVHDCJrlE7Pe9NREUl+WlgOK0PObb86E20s865la+XsRl r0ny/7zkkdzJjzv/4f5M4RYeUYdlHDKmxWEXxa021UXcBJ73jIQME8NWHlpzSqT6M39a D91A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687467545; x=1690059545; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=UurGuuLzED1CKQ5+YtAa+uldlNlkULcrhOlEPtYgkts=; b=Cjnd3K/OY182Rsv/7JdMkQ6W5NSN/YOd2NjtH2rXfpcfyoerWBMVzTTyy4H2Yshq8A VNpbr61iQa3OsI+5EYAENY1CTUic5fUpNSkvFdZhVa3jP3A/06bvzNjiMuvrS6rI7DaB IFe9QpL2kCH9L/0E8kNScbGkplszWpvdCk0Es93GsmMPlZSZwnGuHAeavxJqB64/uJMc ASPP4hppxfXgWpcLnbfqDpAHqQomcqCcitPwADtHX8KB6IOLnMCQGhZmghQtSCkWKsoO Cf4JkHD7nIefA9in7p+bSGInQLsOJda2sWpYZ5Xq5+mZo7iO9LJriUzjHHM3IUNzylet MjqQ== X-Gm-Message-State: AC+VfDwq8MjZt0mp6GNIyTmd1wIYAhnSXEOovgiFkI38aff0hrFA+9+m mP0CXr+qW4RS7KP8/gzEdDA= X-Google-Smtp-Source: ACHHUZ5/16pTE8w+KmQXtTEHVbvOJ9pX8CyeEgbjUI2ZBq46DEtB7j98e4dbCDGlFjYL7Uz7mrOclw== X-Received: by 2002:a25:d707:0:b0:bca:9c66:e53b with SMTP id o7-20020a25d707000000b00bca9c66e53bmr16719019ybg.14.1687467545228; Thu, 22 Jun 2023 13:59:05 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::36]) by smtp.googlemail.com with ESMTPSA id d18-20020a5b0c52000000b00bc501a1b062sm1684937ybr.42.2023.06.22.13.59.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jun 2023 13:59:04 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH v5 33/33] mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers Date: Thu, 22 Jun 2023 13:57:45 -0700 Message-Id: <20230622205745.79707-34-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org These functions are no longer necessary. Remove them and cleanup Documentation referencing them. Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) --- Documentation/mm/split_page_table_lock.rst | 12 +++++------ .../zh_CN/mm/split_page_table_lock.rst | 14 ++++++------- include/linux/mm.h | 20 ------------------- 3 files changed, 13 insertions(+), 33 deletions(-) diff --git a/Documentation/mm/split_page_table_lock.rst b/Documentation/mm/split_page_table_lock.rst index a834fad9de12..e4f6972eb6c0 100644 --- a/Documentation/mm/split_page_table_lock.rst +++ b/Documentation/mm/split_page_table_lock.rst @@ -58,7 +58,7 @@ Support of split page table lock by an architecture =================================================== There's no need in special enabling of PTE split page table lock: everything -required is done by pgtable_pte_page_ctor() and pgtable_pte_page_dtor(), which +required is done by pagetable_pte_ctor() and pagetable_pte_dtor(), which must be called on PTE table allocation / freeing. Make sure the architecture doesn't use slab allocator for page table @@ -68,8 +68,8 @@ This field shares storage with page->ptl. PMD split lock only makes sense if you have more than two page table levels. -PMD split lock enabling requires pgtable_pmd_page_ctor() call on PMD table -allocation and pgtable_pmd_page_dtor() on freeing. +PMD split lock enabling requires pagetable_pmd_ctor() call on PMD table +allocation and pagetable_pmd_dtor() on freeing. Allocation usually happens in pmd_alloc_one(), freeing in pmd_free() and pmd_free_tlb(), but make sure you cover all PMD table allocation / freeing @@ -77,7 +77,7 @@ paths: i.e X86_PAE preallocate few PMDs on pgd_alloc(). With everything in place you can set CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK. -NOTE: pgtable_pte_page_ctor() and pgtable_pmd_page_ctor() can fail -- it must +NOTE: pagetable_pte_ctor() and pagetable_pmd_ctor() can fail -- it must be handled properly. page->ptl @@ -97,7 +97,7 @@ trick: split lock with enabled DEBUG_SPINLOCK or DEBUG_LOCK_ALLOC, but costs one more cache line for indirect access; -The spinlock_t allocated in pgtable_pte_page_ctor() for PTE table and in -pgtable_pmd_page_ctor() for PMD table. +The spinlock_t allocated in pagetable_pte_ctor() for PTE table and in +pagetable_pmd_ctor() for PMD table. Please, never access page->ptl directly -- use appropriate helper. diff --git a/Documentation/translations/zh_CN/mm/split_page_table_lock.rst b/Documentation/translations/zh_CN/mm/split_page_table_lock.rst index 4fb7aa666037..a2c288670a24 100644 --- a/Documentation/translations/zh_CN/mm/split_page_table_lock.rst +++ b/Documentation/translations/zh_CN/mm/split_page_table_lock.rst @@ -56,16 +56,16 @@ Hugetlb特定的辅助函数: 架构对分页表锁的支持 ==================== -没有必要特别启用PTE分页表锁：所有需要的东西都由pgtable_pte_page_ctor() -和pgtable_pte_page_dtor()完成，它们必须在PTE表分配/释放时被调用。 +没有必要特别启用PTE分页表锁：所有需要的东西都由pagetable_pte_ctor() +和pagetable_pte_dtor()完成，它们必须在PTE表分配/释放时被调用。 确保架构不使用slab分配器来分配页表：slab使用page->slab_cache来分配其页 面。这个区域与page->ptl共享存储。 PMD分页锁只有在你有两个以上的页表级别时才有意义。 -启用PMD分页锁需要在PMD表分配时调用pgtable_pmd_page_ctor()，在释放时调 -用pgtable_pmd_page_dtor()。 +启用PMD分页锁需要在PMD表分配时调用pagetable_pmd_ctor()，在释放时调 +用pagetable_pmd_dtor()。 分配通常发生在pmd_alloc_one()中，释放发生在pmd_free()和pmd_free_tlb() 中，但要确保覆盖所有的PMD表分配/释放路径：即X86_PAE在pgd_alloc()中预先 @@ -73,7 +73,7 @@ PMD分页锁只有在你有两个以上的页表级别时才有意义。 一切就绪后，你可以设置CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK。 -注意：pgtable_pte_page_ctor()和pgtable_pmd_page_ctor()可能失败--必 +注意：pagetable_pte_ctor()和pagetable_pmd_ctor()可能失败--必 须正确处理。 page->ptl @@ -90,7 +90,7 @@ page->ptl用于访问分割页表锁，其中'page'是包含该表的页面struc 的指针并动态分配它。这允许在启用DEBUG_SPINLOCK或DEBUG_LOCK_ALLOC的 情况下使用分页锁，但由于间接访问而多花了一个缓存行。 -PTE表的spinlock_t分配在pgtable_pte_page_ctor()中，PMD表的spinlock_t -分配在pgtable_pmd_page_ctor()中。 +PTE表的spinlock_t分配在pagetable_pte_ctor()中，PMD表的spinlock_t +分配在pagetable_pmd_ctor()中。 请不要直接访问page->ptl - -使用适当的辅助函数。 diff --git a/include/linux/mm.h b/include/linux/mm.h index 0e4d5f6d10e5..dc0f19f35424 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2873,11 +2873,6 @@ static inline bool pagetable_pte_ctor(struct ptdesc *ptdesc) return true; } -static inline bool pgtable_pte_page_ctor(struct page *page) -{ - return pagetable_pte_ctor(page_ptdesc(page)); -} - static inline void pagetable_pte_dtor(struct ptdesc *ptdesc) { struct folio *folio = ptdesc_folio(ptdesc); @@ -2887,11 +2882,6 @@ static inline void pagetable_pte_dtor(struct ptdesc *ptdesc) lruvec_stat_sub_folio(folio, NR_PAGETABLE); } -static inline void pgtable_pte_page_dtor(struct page *page) -{ - pagetable_pte_dtor(page_ptdesc(page)); -} - pte_t *__pte_offset_map(pmd_t *pmd, unsigned long addr, pmd_t *pmdvalp); static inline pte_t *pte_offset_map(pmd_t *pmd, unsigned long addr) { @@ -2993,11 +2983,6 @@ static inline bool pagetable_pmd_ctor(struct ptdesc *ptdesc) return true; } -static inline bool pgtable_pmd_page_ctor(struct page *page) -{ - return pagetable_pmd_ctor(page_ptdesc(page)); -} - static inline void pagetable_pmd_dtor(struct ptdesc *ptdesc) { struct folio *folio = ptdesc_folio(ptdesc); @@ -3007,11 +2992,6 @@ static inline void pagetable_pmd_dtor(struct ptdesc *ptdesc) lruvec_stat_sub_folio(folio, NR_PAGETABLE); } -static inline void pgtable_pmd_page_dtor(struct page *page) -{ - pagetable_pmd_dtor(page_ptdesc(page)); -} - /* * No scalability reason to split PUD locks yet, but follow the same pattern * as the PMD locks to make it easier if we decide to. The VM should not be