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authorMichal Hocko <mhocko@suse.com>2016-05-21 02:56:38 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-21 03:58:30 +0300
commitea7ab982b6bdb7ce218fd3a7850bb2e2b414fdd0 (patch)
tree19949422efc2cdc40558810b3f54636ee9ee2a46 /mm/page_alloc.c
parentb6459cc154e804f0de0d61fa023c4946b742cc96 (diff)
downloadlinux-ea7ab982b6bdb7ce218fd3a7850bb2e2b414fdd0.tar.xz
mm, compaction: change COMPACT_ constants into enum
Compaction code is doing weird dances between COMPACT_FOO -> int -> unsigned long But there doesn't seem to be any reason for that. All functions which return/use one of those constants are not expecting any other value so it really makes sense to define an enum for them and make it clear that no other values are expected. This is a pure cleanup and shouldn't introduce any functional changes. Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: David Rientjes <rientjes@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Vladimir Davydov <vdavydov@virtuozzo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index edbdf56b3c9b..ed62c4b90598 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3188,7 +3188,7 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order,
enum migrate_mode mode, int *contended_compaction,
bool *deferred_compaction)
{
- unsigned long compact_result;
+ enum compact_result compact_result;
struct page *page;
if (!order)