Commit b2b331f9 authored Jul 28, 2016 by Ganesh Mahendran Committed by Linus Torvalds Jul 28, 2016

mm/compaction: remove unnecessary order check in try_to_compact_pages()

The caller __alloc_pages_direct_compact() already checked (order == 0)
so there's no need to check again.

Link: http://lkml.kernel.org/r/1465973568-3496-1-git-send-email-opensource.ganesh@gmail.com


Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 55779ec7

mm/compaction.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1681,7 +1681,7 @@ enum compact_result try_to_compact_pages(gfp_t gfp_mask, unsigned int order,
		*contended = COMPACT_CONTENDED_NONE;

		/* Check if the GFP flags allow compaction */
		if (!order \|\| !may_enter_fs \|\| !may_perform_io)
		if (!may_enter_fs \|\| !may_perform_io)
		return COMPACT_SKIPPED;

		trace_mm_compaction_try_to_compact_pages(order, gfp_mask, mode);

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