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| author | David Rientjes <rientjes@google.com> | 2009-09-22 02:01:34 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-22 16:17:27 +0200 |
| commit | b259fbde0a86085264c89aa2ce9c6e35792a1aad (patch) | |
| tree | 43c43fcab1fd6eb897f7348a3b2c8071d61f2b6d /mm/page_alloc.c | |
| parent | mm: oom analysis: add shmem vmstat (diff) | |
| download | linux-b259fbde0a86085264c89aa2ce9c6e35792a1aad.tar.xz linux-b259fbde0a86085264c89aa2ce9c6e35792a1aad.zip | |
mm: update alloc_flags after oom killer has been called
It is possible for the oom killer to select current as the task to kill.
When this happens, alloc_flags needs to be updated accordingly to set
ALLOC_NO_WATERMARKS so the subsequent allocation attempt may use memory
reserves as the result of its thread having TIF_MEMDIE set if the
allocation is not __GFP_NOMEMALLOC.
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | mm/page_alloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e50c22545b8f..b6d0d09557ef 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1771,6 +1771,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, wake_all_kswapd(order, zonelist, high_zoneidx); +restart: /* * OK, we're below the kswapd watermark and have kicked background * reclaim. Now things get more complex, so set up alloc_flags according @@ -1778,7 +1779,6 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, */ alloc_flags = gfp_to_alloc_flags(gfp_mask); -restart: /* This is the last chance, in general, before the goto nopage. */ page = get_page_from_freelist(gfp_mask, nodemask, order, zonelist, high_zoneidx, alloc_flags & ~ALLOC_NO_WATERMARKS, |