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: 13289676 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 2805EEB64DA for ; Thu, 22 Jun 2023 20:59:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231629AbjFVU71 (ORCPT ); Thu, 22 Jun 2023 16:59:27 -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: kvm@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)