From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f174.google.com (mail-yw1-f174.google.com [209.85.128.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 841F01C775 for ; Mon, 12 Jun 2023 21:05:03 +0000 (UTC) Received: by mail-yw1-f174.google.com with SMTP id 00721157ae682-56d3d7a5b84so10003257b3.0 for ; Mon, 12 Jun 2023 14:05:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1686603902; x=1689195902; 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=7hP9xC8dm7FmaxDqq4kyW1FngYvGoyLv+4GJfd5pZsk=; b=CJYIsJwgfTu/y/lqnJP/t9il82a33oAqvZUzCAqj1B6hDybKBkJzlI1M4tHng7gsKh wjldrdty5LsQxwcte5A4qzxTSyPWsC3prP09MuDZHhuDdW+KkIuzhNtB1OGIf0fmEYwq PbjgzzODbpwoqx2q55Rq1VMyrgJdF+EsVRaRlosxhaI2WYgY5mJZUdNXguDU4uoU3hsT HNsA8NDHAaVm+vxqugHLiha5If8egzZBwoJM3N2OKUEJMszToVmHBrGqCteUXmcF8+W9 CJfXWgYf4SrrnrL4x4+oaqBHqtUA2nnqH+olViH9ENIys3R1pjxamFF3W5tG5eZyHhYN +FGQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686603902; x=1689195902; 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=7hP9xC8dm7FmaxDqq4kyW1FngYvGoyLv+4GJfd5pZsk=; b=NV+N7Y7odgRRgGyx9p6U2QoWmVpf5uC3S1+qRyPUGI45mi88HLsZoRe+GR9mWa8Z98 V2KRfgVIjSCeyg4jtHdrFNtOSEtvCAsn92G1pqzUHQk+wCS2NjyAFtHVRqESjWgcqdlM Wkiygst5I5gn7L3xR//myBhzs4WfcH5jGJd8wqXk0XSq7AlpO19XDWpJh34AkBvVEZ5t cDpolzUyX3NBgw1DJlFtlsMZ1/tTBoMTPkU6sbL5bIL8DKz8K4Dk2JL31dqa2GJnpYHa z1R4tdLWewYSX68nEJmi7i6FHXkYmnv488sis53jcgWfqKLwoUqwo+w9ldu/PvKkfoLT 7NSA== X-Gm-Message-State: AC+VfDy7WclzOXX6dEXngJ9c2nGJgKpTmuomnwjxLzyvlaT+1NoSF4uG cl78VsopwyWFwugXxoQmptm2MTub67BMkQ== X-Google-Smtp-Source: ACHHUZ5ktkx/ASoBV55sneLmyoKAwlH0/qlI6IE3eWY9yaMnSemMH48l10CKm48pG/hNrIF3qCc62g== X-Received: by 2002:a0d:d713:0:b0:56d:5286:51f5 with SMTP id z19-20020a0dd713000000b0056d528651f5mr1015907ywd.28.1686603902249; Mon, 12 Jun 2023 14:05:02 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::16]) by smtp.googlemail.com with ESMTPSA id s125-20020a817783000000b00569eb609458sm2757115ywc.81.2023.06.12.14.05.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Jun 2023 14:05:01 -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 v4 08/34] mm: Convert ptlock_ptr() to use ptdescs Date: Mon, 12 Jun 2023 14:03:57 -0700 Message-Id: <20230612210423.18611-9-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230612210423.18611-1-vishal.moola@gmail.com> References: <20230612210423.18611-1-vishal.moola@gmail.com> Precedence: bulk X-Mailing-List: loongarch@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This removes some direct accesses to struct page, working towards splitting out struct ptdesc from struct page. Signed-off-by: Vishal Moola (Oracle) --- 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 b3b8d289b9ab..f469862e3ef4 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -651,7 +651,7 @@ 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 e6f1be2a405e..bb934d51390f 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2828,9 +2828,9 @@ 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) @@ -2846,15 +2846,15 @@ 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) @@ -2869,7 +2869,7 @@ 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; } @@ -2939,7 +2939,7 @@ 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) -- 2.40.1