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| author | Wei Yang <richard.weiyang@linux.alibaba.com> | 2020-08-06 23:25:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-07 11:33:29 -0700 |
| commit | da4156639985a9cdba9727d7f39b69a6b4268dad (patch) | |
| tree | 20560c2eac86db9fffac0a4deefd2057478393e6 | |
| parent | 9e15afa5a87a3bf969a3b33c3dadfb8b46df42c0 (diff) | |
| download | linux-da4156639985a9cdba9727d7f39b69a6b4268dad.tar.bz2 | |
mm/page_alloc: fallbacks at most has 3 elements
MIGRAGE_TYPES is used to be the mark of end and there are at most 3
elements for the one dimension array.
Reduce to 3 to save little memory.
Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: http://lkml.kernel.org/r/20200625231022.18784-1-richard.weiyang@linux.alibaba.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/page_alloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9a39009b1562..2e49b184233c 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2268,7 +2268,7 @@ struct page *__rmqueue_smallest(struct zone *zone, unsigned int order, * This array describes the order lists are fallen back to when * the free lists for the desirable migrate type are depleted */ -static int fallbacks[MIGRATE_TYPES][4] = { +static int fallbacks[MIGRATE_TYPES][3] = { [MIGRATE_UNMOVABLE] = { MIGRATE_RECLAIMABLE, MIGRATE_MOVABLE, MIGRATE_TYPES }, [MIGRATE_MOVABLE] = { MIGRATE_RECLAIMABLE, MIGRATE_UNMOVABLE, MIGRATE_TYPES }, [MIGRATE_RECLAIMABLE] = { MIGRATE_UNMOVABLE, MIGRATE_MOVABLE, MIGRATE_TYPES }, |