Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752542Ab3I0NQn (ORCPT ); Fri, 27 Sep 2013 09:16:43 -0400 Received: from mga02.intel.com ([134.134.136.20]:22451 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751860Ab3I0NQl (ORCPT ); Fri, 27 Sep 2013 09:16:41 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.90,992,1371106800"; d="scan'208";a="384397395" From: "Kirill A. Shutemov" To: Alex Thorlton , Ingo Molnar , Andrew Morton , Naoya Horiguchi Cc: "Eric W . Biederman" , "Paul E . McKenney" , Al Viro , Andi Kleen , Andrea Arcangeli , Dave Hansen , Dave Jones , David Howells , Frederic Weisbecker , Johannes Weiner , Kees Cook , Mel Gorman , Michael Kerrisk , Oleg Nesterov , Peter Zijlstra , Rik van Riel , Robin Holt , Sedat Dilek , Srikar Dronamraju , Thomas Gleixner , linux-kernel@vger.kernel.org, linux-mm@kvack.org, "Kirill A. Shutemov" Subject: [PATCHv4 01/10] mm: rename USE_SPLIT_PTLOCKS to USE_SPLIT_PTE_PTLOCKS Date: Fri, 27 Sep 2013 16:16:18 +0300 Message-Id: <1380287787-30252-2-git-send-email-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 1.8.4.rc3 In-Reply-To: <1380287787-30252-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1380287787-30252-1-git-send-email-kirill.shutemov@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5001 Lines: 146 We're going to introduce split page table lock for PMD level. Let's rename existing split ptlock for PTE level to avoid confusion. Signed-off-by: Kirill A. Shutemov Tested-by: Alex Thorlton --- arch/arm/mm/fault-armv.c | 6 +++--- arch/x86/xen/mmu.c | 6 +++--- include/linux/mm.h | 6 +++--- include/linux/mm_types.h | 8 ++++---- 4 files changed, 13 insertions(+), 13 deletions(-) diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c index 2a5907b5c8..ff379ac115 100644 --- a/arch/arm/mm/fault-armv.c +++ b/arch/arm/mm/fault-armv.c @@ -65,7 +65,7 @@ static int do_adjust_pte(struct vm_area_struct *vma, unsigned long address, return ret; } -#if USE_SPLIT_PTLOCKS +#if USE_SPLIT_PTE_PTLOCKS /* * If we are using split PTE locks, then we need to take the page * lock here. Otherwise we are using shared mm->page_table_lock @@ -84,10 +84,10 @@ static inline void do_pte_unlock(spinlock_t *ptl) { spin_unlock(ptl); } -#else /* !USE_SPLIT_PTLOCKS */ +#else /* !USE_SPLIT_PTE_PTLOCKS */ static inline void do_pte_lock(spinlock_t *ptl) {} static inline void do_pte_unlock(spinlock_t *ptl) {} -#endif /* USE_SPLIT_PTLOCKS */ +#endif /* USE_SPLIT_PTE_PTLOCKS */ static int adjust_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn) diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index fdc3ba28ca..455c873ce0 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -796,7 +796,7 @@ static spinlock_t *xen_pte_lock(struct page *page, struct mm_struct *mm) { spinlock_t *ptl = NULL; -#if USE_SPLIT_PTLOCKS +#if USE_SPLIT_PTE_PTLOCKS ptl = __pte_lockptr(page); spin_lock_nest_lock(ptl, &mm->page_table_lock); #endif @@ -1637,7 +1637,7 @@ static inline void xen_alloc_ptpage(struct mm_struct *mm, unsigned long pfn, __set_pfn_prot(pfn, PAGE_KERNEL_RO); - if (level == PT_PTE && USE_SPLIT_PTLOCKS) + if (level == PT_PTE && USE_SPLIT_PTE_PTLOCKS) __pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn); xen_mc_issue(PARAVIRT_LAZY_MMU); @@ -1671,7 +1671,7 @@ static inline void xen_release_ptpage(unsigned long pfn, unsigned level) if (!PageHighMem(page)) { xen_mc_batch(); - if (level == PT_PTE && USE_SPLIT_PTLOCKS) + if (level == PT_PTE && USE_SPLIT_PTE_PTLOCKS) __pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, pfn); __set_pfn_prot(pfn, PAGE_KERNEL); diff --git a/include/linux/mm.h b/include/linux/mm.h index 8b6e55ee88..6cf8ddb45b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1232,7 +1232,7 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a } #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */ -#if USE_SPLIT_PTLOCKS +#if USE_SPLIT_PTE_PTLOCKS /* * We tuck a spinlock to guard each pagetable page into its struct page, * at page->private, with BUILD_BUG_ON to make sure that this will not @@ -1245,14 +1245,14 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a } while (0) #define pte_lock_deinit(page) ((page)->mapping = NULL) #define pte_lockptr(mm, pmd) ({(void)(mm); __pte_lockptr(pmd_page(*(pmd)));}) -#else /* !USE_SPLIT_PTLOCKS */ +#else /* !USE_SPLIT_PTE_PTLOCKS */ /* * We use mm->page_table_lock to guard all pagetable pages of the mm. */ #define pte_lock_init(page) do {} while (0) #define pte_lock_deinit(page) do {} while (0) #define pte_lockptr(mm, pmd) ({(void)(pmd); &(mm)->page_table_lock;}) -#endif /* USE_SPLIT_PTLOCKS */ +#endif /* USE_SPLIT_PTE_PTLOCKS */ static inline void pgtable_page_ctor(struct page *page) { diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index d9851eeb6e..84e0c56e1e 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -23,7 +23,7 @@ struct address_space; -#define USE_SPLIT_PTLOCKS (NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS) +#define USE_SPLIT_PTE_PTLOCKS (NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS) /* * Each physical page in the system has a struct page associated with @@ -141,7 +141,7 @@ struct page { * indicates order in the buddy * system if PG_buddy is set. */ -#if USE_SPLIT_PTLOCKS +#if USE_SPLIT_PTE_PTLOCKS spinlock_t ptl; #endif struct kmem_cache *slab_cache; /* SL[AU]B: Pointer to slab */ @@ -309,14 +309,14 @@ enum { NR_MM_COUNTERS }; -#if USE_SPLIT_PTLOCKS && defined(CONFIG_MMU) +#if USE_SPLIT_PTE_PTLOCKS && defined(CONFIG_MMU) #define SPLIT_RSS_COUNTING /* per-thread cached information, */ struct task_rss_stat { int events; /* for synchronization threshold */ int count[NR_MM_COUNTERS]; }; -#endif /* USE_SPLIT_PTLOCKS */ +#endif /* USE_SPLIT_PTE_PTLOCKS */ struct mm_rss_stat { atomic_long_t count[NR_MM_COUNTERS]; -- 1.8.4.rc3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/