From patchwork Mon May 1 19:28:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13228106 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 7D7EEC88CB6 for ; Mon, 1 May 2023 19:31:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233703AbjEATbl (ORCPT ); Mon, 1 May 2023 15:31:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57106 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233568AbjEAT3p (ORCPT ); Mon, 1 May 2023 15:29:45 -0400 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EFA212D50; Mon, 1 May 2023 12:29:19 -0700 (PDT) Received: by mail-pl1-x62b.google.com with SMTP id d9443c01a7336-1aaea3909d1so17753435ad.2; Mon, 01 May 2023 12:29:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1682969349; x=1685561349; 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=Pf7K/iFMD6od7/SRYpuPsYcodkkXMgOdjXv5YJvZldk=; b=Ln4mDR/5PqhQgedxrHvQljALDEWoa3b+hRIGv35D/XEQopkojKeYky16q/KJiQP190 gOXMLkWlsxRYt/qNbMMHduRgO5rwSHkWxXdTawxJdNC4w4aAhizbEp/u5yJIFvo+hvkC CzCza/yOOV7wQ3CRXlPMEZ6eMm1zhczAF9AJlp92How5r4l3oEpl8xhmNNQZ5IRuQriJ 5iq8Jlorps05Qifajbp6RIvsWCW3JV3LIBqvQ7RLXCzoWQn8RP/izc4h1lgdgQ7smZ+o cGeex+nu9iv1OEbJv0WRRlF1TRZ+PJHxnItl8vKiR8iqu8w5u+UliAsQ4ZVuON7yHbns fmHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682969349; x=1685561349; 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=Pf7K/iFMD6od7/SRYpuPsYcodkkXMgOdjXv5YJvZldk=; b=JnlhlXnedOyv9DLuLN470DeL1fmT1y5YX/HSD6W2ptLXhpT1XLD5AANnB7XGedfTck xXXI4x3/2asQoKQ5dnbwNzJJ/s12SAhjyXwRKEEDFDj+orqAD4cuLG7ENzuqs2UVlj4m +XEuQhKb/NFiGt1vV5cjef8qvTnfcoczI44UPJwh/l/m6vXWA0+CukIhcxitpgkSJMDK rZ53TwViEOeKx7fr+kYNAvZtoPHJM/MK0/dwN/zaPAob1aobINHfxXO+Xj7mk4VU8pCk ZAVKHKhUQbKvwlwi993oQRlGxz4rSoKPwA4kVhbAs1chNlgYQM10S5yHltW+FQdp79KO dZVw== X-Gm-Message-State: AC+VfDyLZ6NxqUN+cVNTegdC1mSpWCT5yv+T0k6SeLurqfwL3bG05ANL quLL5Q2FiS62c+h1u20x+gI= X-Google-Smtp-Source: ACHHUZ4pGEgDP0ct3SBtbJjK9qWlsOBNKoJkb8hPo4/muNsqGBXZA1NHW06v64HPJmj4Ckit7F5PBA== X-Received: by 2002:a17:903:2352:b0:1aa:ed6f:29c2 with SMTP id c18-20020a170903235200b001aaed6f29c2mr6827893plh.11.1682969349038; Mon, 01 May 2023 12:29:09 -0700 (PDT) Received: from fedora.hsd1.ca.comcast.net ([2601:644:937f:7f20::9a2c]) by smtp.googlemail.com with ESMTPSA id u8-20020a170902bf4800b0019c13d032d8sm18175622pls.253.2023.05.01.12.29.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 May 2023 12:29:08 -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, "Vishal Moola (Oracle)" , Huacai Chen Subject: [PATCH v2 24/34] loongarch: Convert various functions to use ptdescs Date: Mon, 1 May 2023 12:28:19 -0700 Message-Id: <20230501192829.17086-25-vishal.moola@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230501192829.17086-1-vishal.moola@gmail.com> References: <20230501192829.17086-1-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 ptdesc_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) --- 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..1fe074f85b6b 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 { \ + ptdesc_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 = ptdesc_alloc(GFP_KERNEL_ACCOUNT, 0); + if (!ptdesc) return NULL; - if (!pgtable_pmd_page_ctor(pg)) { - __free_page(pg); + if (!ptdesc_pmd_ctor(ptdesc)) { + ptdesc_free(ptdesc); return NULL; } - pmd = (pmd_t *)page_address(pg); + pmd = (pmd_t *)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 = ptdesc_alloc(GFP_KERNEL, 0); - pud = (pud_t *) __get_free_page(GFP_KERNEL); - if (pud) - pud_init(pud); + if (!ptdesc) + return NULL; + pud = (pud_t *)ptdesc_address(ptdesc); + + pud_init(pud); return pud; } diff --git a/arch/loongarch/mm/pgtable.c b/arch/loongarch/mm/pgtable.c index 36a6dc0148ae..ff07b8f1ef30 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 = ptdesc_alloc(GFP_KERNEL, 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,