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Revert "mm: page_alloc: exclude unreclaimable allocations from zone fairness policy"

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This reverts commit 73f038b863.  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@vger.kernel.org
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mel Gorman 2013-12-20 14:54:11 +00:00 committed by Linus Torvalds
parent ee53664bda
commit 8798cee2f9
1 changed files with 1 additions and 2 deletions
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3
mm/page_alloc.c
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@ -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 &&