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| author | Shaohua Li <shaohua.li@intel.com> | 2011-06-15 15:08:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-06-15 20:04:02 -0700 |
| commit | a582a738c763e106f47eab24b8146c698a9c700b (patch) | |
| tree | aaa5eda6bae7adc04dc5cbd513f5c25ac684af97 /mm/vmscan.c | |
| parent | 5db8a73a8d7cc6a66afbf25ed7fda338caa8f5f9 (diff) | |
| download | kernel_goldelico_gta04-a582a738c763e106f47eab24b8146c698a9c700b.zip kernel_goldelico_gta04-a582a738c763e106f47eab24b8146c698a9c700b.tar.gz kernel_goldelico_gta04-a582a738c763e106f47eab24b8146c698a9c700b.tar.bz2 | |
compaction: checks correct fragmentation index
fragmentation_index() returns -1000 when the allocation might succeed
This doesn't match the comment and code in compaction_suitable(). I
thought compaction_suitable should return COMPACT_PARTIAL in -1000
case, because in this case allocation could succeed depending on
watermarks.
The impact of this is that compaction starts and compact_finished() is
called which rechecks the watermarks and the free lists. It should have
the same result in that compaction should not start but is more expensive.
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
0 files changed, 0 insertions, 0 deletions