diff options
| author | Alex Shi <[email protected]> | 2020-08-11 18:31:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-08-12 10:57:56 -0700 |
| commit | 860b32729a21e0565585a9e2ecea2e5244d65acd (patch) | |
| tree | f22be7fd44311b251db328bb682d7733f7c3dcbf | |
| parent | d34c0a7599ea8c301bc471dfa1eb2bf2db6752d1 (diff) | |
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 <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: Alexander Duyck <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | include/linux/mmzone.h | 1 | ||||
| -rw-r--r-- | mm/compaction.c | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index efbd95dd3bbf..8379432f4f2f 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -536,6 +536,7 @@ struct zone { * On compaction failure, 1<<compact_defer_shift compactions * are skipped before trying again. The number attempted since * last failure is tracked with compact_considered. + * compact_order_failed is the minimum compaction failed order. */ unsigned int compact_considered; unsigned int compact_defer_shift; 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) |