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| author |   Vlastimil Babka <vbabka@suse.cz> | 2016-10-07 16:57:41 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-07 18:46:27 -0700 |
| commit | cf378319d335663b6722e74db0211b8af55049d5 (patch) | |
| tree | e87f81df15b4c322098412bf1bbe7230e8c1b7ab /include/trace | |
| parent | mm, compaction: cleanup unused functions (diff) | |
| download | linux-dev-cf378319d335663b6722e74db0211b8af55049d5.tar.xz linux-dev-cf378319d335663b6722e74db0211b8af55049d5.zip | |
mm, compaction: rename COMPACT_PARTIAL to COMPACT_SUCCESS
COMPACT_PARTIAL has historically meant that compaction returned after
doing some work without fully compacting a zone. It however didn't
distinguish if compaction terminated because it succeeded in creating
the requested high-order page. This has changed recently and now we
only return COMPACT_PARTIAL when compaction thinks it succeeded, or the
high-order watermark check in compaction_suitable() passes and no
compaction needs to be done.
So at this point we can make the return value clearer by renaming it to
COMPACT_SUCCESS. The next patch will remove some redundant tests for
success where compaction just returned COMPACT_SUCCESS.
Link: http://lkml.kernel.org/r/20160810091226.6709-4-vbabka@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Tested-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: David Rientjes <rientjes@google.com>
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 'include/trace')
| -rw-r--r-- | include/trace/events/compaction.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h index c2ba402ab256..cbdb90b6b308 100644 --- a/include/trace/events/compaction.h +++ b/include/trace/events/compaction.h @@ -13,7 +13,7 @@ EM( COMPACT_SKIPPED, "skipped") \ EM( COMPACT_DEFERRED, "deferred") \ EM( COMPACT_CONTINUE, "continue") \ - EM( COMPACT_PARTIAL, "partial") \ + EM( COMPACT_SUCCESS, "success") \ EM( COMPACT_PARTIAL_SKIPPED, "partial_skipped") \ EM( COMPACT_COMPLETE, "complete") \ EM( COMPACT_NO_SUITABLE_PAGE, "no_suitable_page") \ |