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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2017-02-23 02:46:31 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-23 03:41:30 +0300 |
| commit | da162e9368990ed747075e2ab427da0759fc4a59 (patch) | |
| tree | d81981e4f2464b3ae0b421b29afcfb9fb7993380 /mm | |
| parent | 685dbf6f5a643c4bdb9323ee3544ec652505d2ea (diff) | |
| download | linux-da162e9368990ed747075e2ab427da0759fc4a59.tar.xz | |
mm: drop zap_details::ignore_dirty
The only user of ignore_dirty is oom-reaper. But it doesn't really use
it.
ignore_dirty only has effect on file pages mapped with dirty pte. But
oom-repear skips shared VMAs, so there's no way we can dirty file pte in
them.
Link: http://lkml.kernel.org/r/20170118122429.43661-1-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory.c | 6 | ||||
| -rw-r--r-- | mm/oom_kill.c | 3 |
2 files changed, 1 insertions, 8 deletions
diff --git a/mm/memory.c b/mm/memory.c index d7676a68c80a..88872a93c3ca 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1155,12 +1155,6 @@ again: if (!PageAnon(page)) { if (pte_dirty(ptent)) { - /* - * oom_reaper cannot tear down dirty - * pages - */ - if (unlikely(details && details->ignore_dirty)) - continue; force_flush = 1; set_page_dirty(page); } diff --git a/mm/oom_kill.c b/mm/oom_kill.c index c7b48b4282d9..33fcc8a40aeb 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -465,8 +465,7 @@ static bool __oom_reap_task_mm(struct task_struct *tsk, struct mm_struct *mm) { struct mmu_gather tlb; struct vm_area_struct *vma; - struct zap_details details = {.check_swap_entries = true, - .ignore_dirty = true}; + struct zap_details details = {.check_swap_entries = true}; bool ret = true; /* |