From: Ganesh Mahendran <opensource.ganesh@xxxxxxxxx> Subject: 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@xxxxxxxxx Signed-off-by: Ganesh Mahendran <opensource.ganesh@xxxxxxxxx> Cc: Vlastimil Babka <vbabka@xxxxxxx> Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxx> Cc: Michal Nazarewicz <mina86@xxxxxxxxxx> Cc: Minchan Kim <minchan@xxxxxxxxxx> Cc: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/compaction.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN mm/compaction.c~mm-compaction-remove-unnecessary-order-check-in-try_to_compact_pages mm/compaction.c --- a/mm/compaction.c~mm-compaction-remove-unnecessary-order-check-in-try_to_compact_pages +++ a/mm/compaction.c @@ -1681,7 +1681,7 @@ enum compact_result try_to_compact_pages *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); _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
