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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-17 06:21:36 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-17 06:21:36 +0400 |
| commit | 98c4514ff6e3072288770db66f91bdb15af8b433 (patch) | |
| tree | eb5f2541e70d27144720e1735b463471025908f0 /mm/memory.c | |
| parent | 644a9d3b66e6983c2c1f3b24c3006d49b184c871 (diff) | |
| parent | f4a75d2eb7b1e2206094b901be09adb31ba63681 (diff) | |
| download | linux-98c4514ff6e3072288770db66f91bdb15af8b433.tar.xz | |
Merge 3.7-rc6 into char-misc-next
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/mm/memory.c b/mm/memory.c index fb135ba4aba9..221fc9ffcab1 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2527,9 +2527,8 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, int ret = 0; int page_mkwrite = 0; struct page *dirty_page = NULL; - unsigned long mmun_start; /* For mmu_notifiers */ - unsigned long mmun_end; /* For mmu_notifiers */ - bool mmun_called = false; /* For mmu_notifiers */ + unsigned long mmun_start = 0; /* For mmu_notifiers */ + unsigned long mmun_end = 0; /* For mmu_notifiers */ old_page = vm_normal_page(vma, address, orig_pte); if (!old_page) { @@ -2708,8 +2707,7 @@ gotten: goto oom_free_new; mmun_start = address & PAGE_MASK; - mmun_end = (address & PAGE_MASK) + PAGE_SIZE; - mmun_called = true; + mmun_end = mmun_start + PAGE_SIZE; mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end); /* @@ -2778,7 +2776,7 @@ gotten: page_cache_release(new_page); unlock: pte_unmap_unlock(page_table, ptl); - if (mmun_called) + if (mmun_end > mmun_start) mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end); if (old_page) { /* |