From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Vishal Moola (Oracle)" Subject: [PATCH v6 11/33] mm: Convert ptlock_free() to use ptdescs Date: Mon, 26 Jun 2023 20:14:09 -0700 Message-ID: <20230627031431.29653-12-vishal.moola@gmail.com> References: <20230627031431.29653-1-vishal.moola@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687835731; x=1690427731; 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=NN6JuQbcJSEhuQl119fqyrzmvfTJLSgZNGPIizHO44moV6zy7vRkkkGbpzNnm+T/zk LfpssTQxYHLCLcRT6ur03GhfUH0PR3hr1gEAZWn4KlOVQ/bRaXKu0XwyzIXh7FK2T78w GV5aBHngJRtwmpryMrqg1wnpyNcK63Z6rXozTP8pqdze8wtkdCn+4d6Nxd1VmHHTwiSp Hj2gVskjJaa7d3mxLgebdTWNoaiyWHEkTnVETMwzQNfFNqae/PKVEKJL0sEqbBCs/7Gc Lg3rR1WUfvzFXQfsjuyOG1PSX82wJS5wL2NRG2ks6qk/cPnX1GTuY36dOOOiPPB0JsGq 3KdQ== In-Reply-To: <20230627031431.29653-1-vishal.moola@gmail.com> Content-Type: text/plain; charset="us-ascii" 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 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 -- 2.40.1