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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 X-Rspamd-Queue-Id: A9012120003 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: 49wm6drs54y9p9owmhadmyrumh7x5g4j X-HE-Tag: 1687467489-797926 X-HE-Meta: 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 tS4HPL2E 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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; }