[PATCH 1/2] Revert "mm: page_alloc: exclude unreclaimable allocations from zone fairness policy"

From: Mel Gorman
Date: Fri Dec 20 2013 - 09:54:48 EST


This reverts commit 73f038b863dfe98acabc7c36c17342b84ad52e94. The NUMA behaviour of
this patch is less than ideal. An alternative approch is to interleave allocations
only within local zones which is implemented in the next patch.

Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
---
mm/page_alloc.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index f861d02..580a5f0 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1920,8 +1920,7 @@ zonelist_scan:
* back to remote zones that do not partake in the
* fairness round-robin cycle of this zonelist.
*/
- if ((alloc_flags & ALLOC_WMARK_LOW) &&
- (gfp_mask & GFP_MOVABLE_MASK)) {
+ if (alloc_flags & ALLOC_WMARK_LOW) {
if (zone_page_state(zone, NR_ALLOC_BATCH) <= 0)
continue;
if (zone_reclaim_mode &&
--
1.8.4

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