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authorAlex Shi <alex.shi@linux.alibaba.com>2020-08-11 18:31:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-12 10:57:56 -0700
commit860b32729a21e0565585a9e2ecea2e5244d65acd (patch)
treef22be7fd44311b251db328bb682d7733f7c3dcbf /mm/compaction.c
parentd34c0a7599ea8c301bc471dfa1eb2bf2db6752d1 (diff)
downloadlinux-860b32729a21e0565585a9e2ecea2e5244d65acd.tar.gz
mm/compaction: correct the comments of compact_defer_shift
There is no compact_defer_limit. It should be compact_defer_shift in
use. and add compact_order_failed explanation.

Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Link: http://lkml.kernel.org/r/3bd60e1b-a74e-050d-ade4-6e8f54e00b92@linux.alibaba.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/compaction.c')
-rw-r--r--mm/compaction.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index b7d433f1706a..5e8f2e22b73e 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -154,7 +154,7 @@ EXPORT_SYMBOL(__ClearPageMovable);
 
 /*
  * Compaction is deferred when compaction fails to result in a page
- * allocation success. 1 << compact_defer_limit compactions are skipped up
+ * allocation success. 1 << compact_defer_shift, compactions are skipped up
  * to a limit of 1 << COMPACT_MAX_DEFER_SHIFT
  */
 void defer_compaction(struct zone *zone, int order)