mm/compaction.c: fix comment for try_to_compact_pages()

"mode" argument is not used by try_to_compact_pages() and sub functions
anymore, it has been replaced by "prio".  Fix the comment to explain the
use of "prio" argument.

Link: http://lkml.kernel.org/r/1515801336-20611-1-git-send-email-yang.shi@linux.alibaba.com
Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/mm/compaction.c b/mm/compaction.c
index 10cd757f1006..2c8999d027ab 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1738,7 +1738,7 @@ int sysctl_extfrag_threshold = 500;
  * @order: The order of the current allocation
  * @alloc_flags: The allocation flags of the current allocation
  * @ac: The context of current allocation
- * @mode: The migration mode for async, sync light, or sync migration
+ * @prio: Determines how hard direct compaction should try to succeed
  *
  * This is the main entry point for direct page compaction.
  */