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| author | Gavin Shan <shangw@linux.vnet.ibm.com> | 2012-07-31 16:42:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-31 18:42:42 -0700 |
| commit | c59e26104e3e0e952cd7d63e79cd71ee5a9ec25a (patch) | |
| tree | 14ab1cef0b19e576672bdfdea97bc947e6252a76 | |
| parent | 3c935d189be9bb877c5a1110ac5fbf9c8e310658 (diff) | |
| download | linux-stable-c59e26104e3e0e952cd7d63e79cd71ee5a9ec25a.tar.gz linux-stable-c59e26104e3e0e952cd7d63e79cd71ee5a9ec25a.tar.bz2 linux-stable-c59e26104e3e0e952cd7d63e79cd71ee5a9ec25a.zip | |
mm/compaction: cleanup on compaction_deferred
When CONFIG_COMPACTION is enabled, compaction_deferred() tries to
recalculate the deferred limit again, which isn't necessary.
When CONFIG_COMPACTION is disabled, compaction_deferred() should return
"true" or "false" since it has "bool" for its return value.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/compaction.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/compaction.h b/include/linux/compaction.h index 51a90b7f2d60..133ddcf83397 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -58,7 +58,7 @@ static inline bool compaction_deferred(struct zone *zone, int order) if (++zone->compact_considered > defer_limit) zone->compact_considered = defer_limit; - return zone->compact_considered < (1UL << zone->compact_defer_shift); + return zone->compact_considered < defer_limit; } #else @@ -85,7 +85,7 @@ static inline void defer_compaction(struct zone *zone, int order) static inline bool compaction_deferred(struct zone *zone, int order) { - return 1; + return true; } #endif /* CONFIG_COMPACTION */ |