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| author | Rik van Riel <riel@redhat.com> | 2012-10-08 16:28:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:22:15 +0900 |
| commit | c654345924f7cce87bb221b89db91cba890421ba (patch) | |
| tree | 980c9a496ac0e2497ef156ff5b83701295d1ecf8 /include/trace | |
| parent | 075663d19885eb3738fd2d7dbdb8947e12563b68 (diff) | |
| download | linux-c654345924f7cce87bb221b89db91cba890421ba.tar.gz linux-c654345924f7cce87bb221b89db91cba890421ba.tar.bz2 linux-c654345924f7cce87bb221b89db91cba890421ba.zip | |
mm: remove __GFP_NO_KSWAPD
When transparent huge pages were introduced, memory compaction and swap
storms were an issue, and the kernel had to be careful to not make THP
allocations cause pageout or compaction.
Now that we have working compaction deferral, kswapd is smart enough to
invoke compaction and the quadratic behaviour around isolate_free_pages
has been fixed, it should be safe to remove __GFP_NO_KSWAPD.
[minchan@kernel.org: Comment fix]
[mgorman@suse.de: Avoid direct reclaim for deferred compaction]
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/gfpflags.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/trace/events/gfpflags.h b/include/trace/events/gfpflags.h index d6fd8e5b14b7..9391706e9254 100644 --- a/include/trace/events/gfpflags.h +++ b/include/trace/events/gfpflags.h @@ -36,7 +36,6 @@ {(unsigned long)__GFP_RECLAIMABLE, "GFP_RECLAIMABLE"}, \ {(unsigned long)__GFP_MOVABLE, "GFP_MOVABLE"}, \ {(unsigned long)__GFP_NOTRACK, "GFP_NOTRACK"}, \ - {(unsigned long)__GFP_NO_KSWAPD, "GFP_NO_KSWAPD"}, \ {(unsigned long)__GFP_OTHER_NODE, "GFP_OTHER_NODE"} \ ) : "GFP_NOWAIT" |