From: aarcange@redhat.com
To: linux-mm@kvack.org
Cc: Andrea Arcangeli <aarcange@redhat.com>, Rik van Riel <riel@redhat.com>
Subject: [patch 18/35] add pmd mmu_notifier helpers
Date: Fri, 26 Feb 2010 21:04:51 +0100 [thread overview]
Message-ID: <20100226200901.753938654@redhat.com> (raw)
In-Reply-To: 20100226200433.516502198@redhat.com
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[-- Type: text/plain, Size: 2822 bytes --]
From: Andrea Arcangeli <aarcange@redhat.com>
Add mmu notifier helpers to handle pmd huge operations.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
---
include/linux/mmu_notifier.h | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -243,6 +243,32 @@ static inline void mmu_notifier_mm_destr
__pte; \
})
+#define pmdp_clear_flush_notify(__vma, __address, __pmdp) \
+({ \
+ pmd_t __pmd; \
+ struct vm_area_struct *___vma = __vma; \
+ unsigned long ___address = __address; \
+ VM_BUG_ON(__address & ~HPAGE_PMD_MASK); \
+ mmu_notifier_invalidate_range_start(___vma->vm_mm, ___address, \
+ (__address)+HPAGE_PMD_SIZE);\
+ __pmd = pmdp_clear_flush(___vma, ___address, __pmdp); \
+ mmu_notifier_invalidate_range_end(___vma->vm_mm, ___address, \
+ (__address)+HPAGE_PMD_SIZE); \
+ __pmd; \
+})
+
+#define pmdp_splitting_flush_notify(__vma, __address, __pmdp) \
+({ \
+ struct vm_area_struct *___vma = __vma; \
+ unsigned long ___address = __address; \
+ VM_BUG_ON(__address & ~HPAGE_PMD_MASK); \
+ mmu_notifier_invalidate_range_start(___vma->vm_mm, ___address, \
+ (__address)+HPAGE_PMD_SIZE);\
+ pmdp_splitting_flush(___vma, ___address, __pmdp); \
+ mmu_notifier_invalidate_range_end(___vma->vm_mm, ___address, \
+ (__address)+HPAGE_PMD_SIZE); \
+})
+
#define ptep_clear_flush_young_notify(__vma, __address, __ptep) \
({ \
int __young; \
@@ -254,6 +280,17 @@ static inline void mmu_notifier_mm_destr
__young; \
})
+#define pmdp_clear_flush_young_notify(__vma, __address, __pmdp) \
+({ \
+ int __young; \
+ struct vm_area_struct *___vma = __vma; \
+ unsigned long ___address = __address; \
+ __young = pmdp_clear_flush_young(___vma, ___address, __pmdp); \
+ __young |= mmu_notifier_clear_flush_young(___vma->vm_mm, \
+ ___address); \
+ __young; \
+})
+
#define set_pte_at_notify(__mm, __address, __ptep, __pte) \
({ \
struct mm_struct *___mm = __mm; \
@@ -305,7 +342,10 @@ static inline void mmu_notifier_mm_destr
}
#define ptep_clear_flush_young_notify ptep_clear_flush_young
+#define pmdp_clear_flush_young_notify pmdp_clear_flush_young
#define ptep_clear_flush_notify ptep_clear_flush
+#define pmdp_clear_flush_notify pmdp_clear_flush
+#define pmdp_splitting_flush_notify pmdp_splitting_flush
#define set_pte_at_notify set_pte_at
#endif /* CONFIG_MMU_NOTIFIER */
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next prev parent reply other threads:[~2010-02-26 20:09 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-26 20:04 [patch 00/35] Transparent Hugepage support #12 aarcange
2010-02-26 20:04 ` [patch 01/35] define MADV_HUGEPAGE aarcange
2010-02-26 20:04 ` [patch 02/35] compound_lock aarcange
2010-02-26 20:04 ` [patch 03/35] alter compound get_page/put_page aarcange
2010-02-26 20:04 ` [patch 04/35] update futex compound knowledge aarcange
2010-02-26 20:04 ` [patch 05/35] fix bad_page to show the real reason the page is bad aarcange
2010-02-26 20:04 ` [patch 06/35] clear compound mapping aarcange
2010-02-26 20:04 ` [patch 07/35] add native_set_pmd_at aarcange
2010-02-26 20:04 ` [patch 08/35] add pmd paravirt ops aarcange
2010-02-26 20:04 ` [patch 09/35] no paravirt version of pmd ops aarcange
2010-02-26 20:04 ` [patch 10/35] export maybe_mkwrite aarcange
2010-02-26 20:04 ` [patch 11/35] comment reminder in destroy_compound_page aarcange
2010-02-26 20:04 ` [patch 12/35] config_transparent_hugepage aarcange
2010-02-26 20:04 ` [patch 13/35] special pmd_trans_* functions aarcange
2010-02-26 20:04 ` [patch 14/35] add pmd mangling generic functions aarcange
2010-02-26 20:04 ` [patch 15/35] add pmd mangling functions to x86 aarcange
2010-02-26 20:04 ` [patch 16/35] bail out gup_fast on splitting pmd aarcange
2010-02-26 20:04 ` [patch 17/35] pte alloc trans splitting aarcange
2010-02-26 20:04 ` aarcange [this message]
2010-02-26 20:04 ` [patch 19/35] clear page compound aarcange
2010-02-26 20:04 ` [patch 20/35] add pmd_huge_pte to mm_struct aarcange
2010-02-26 20:04 ` [patch 21/35] split_huge_page_mm/vma aarcange
2010-02-26 20:04 ` [patch 22/35] split_huge_page paging aarcange
2010-02-26 20:04 ` [patch 23/35] clear_copy_huge_page aarcange
2010-02-26 20:04 ` [patch 24/35] kvm mmu transparent hugepage support aarcange
2010-02-26 20:04 ` [patch 25/35] _GFP_NO_KSWAPD aarcange
2010-02-26 20:04 ` [patch 26/35] dont alloc harder for gfp nomemalloc even if nowait aarcange
2010-02-26 20:05 ` [patch 27/35] transparent hugepage core aarcange
2010-02-26 20:05 ` [patch 28/35] adapt to mm_counter in -mm aarcange
2010-02-26 20:05 ` [patch 29/35] verify pmd_trans_huge isnt leaking aarcange
2010-02-26 20:05 ` [patch 30/35] madvise(MADV_HUGEPAGE) aarcange
2010-02-26 20:05 ` [patch 31/35] pmd_trans_huge migrate bugcheck aarcange
2010-02-26 20:05 ` [patch 32/35] memcg compound aarcange
2010-02-26 20:05 ` [patch 33/35] memcg huge memory aarcange
2010-02-26 20:05 ` [patch 34/35] transparent hugepage vmstat aarcange
2010-02-26 20:05 ` [patch 35/35] khugepaged aarcange
-- strict thread matches above, loose matches on Subject: below --
2010-03-09 19:39 [patch 00/35] Transparent Hugepage support #13 aarcange
2010-03-09 19:39 ` [patch 18/35] add pmd mmu_notifier helpers aarcange
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