The patch titled
Subject: mm: page_alloc: abort fair zone allocation policy when remotes nodes are encountered
has been removed from the -mm tree. Its filename was
mm-page_alloc-abort-fair-zone-allocation-policy-when-remotes-nodes-are-encountered.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Mel Gorman <mgorman@xxxxxxx>
Subject: mm: page_alloc: abort fair zone allocation policy when remotes nodes are encountered
The purpose of numa_zonelist_order=zone is to preserve lower zones for use
with 32-bit devices. If locality is preferred then the
numa_zonelist_order=node policy should be used. Unfortunately, the fair
zone allocation policy overrides this by skipping zones on remote nodes
until the lower one is found. While this makes sense from a page aging
and performance perspective, it breaks the expected zonelist policy. This
patch restores the expected behaviour for zone-list ordering.
Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/page_alloc.c~mm-page_alloc-abort-fair-zone-allocation-policy-when-remotes-nodes-are-encountered mm/page_alloc.c
--- a/mm/page_alloc.c~mm-page_alloc-abort-fair-zone-allocation-policy-when-remotes-nodes-are-encountered
+++ a/mm/page_alloc.c
@@ -1965,7 +1965,7 @@ zonelist_scan:
*/
if (alloc_flags & ALLOC_FAIR) {
if (!zone_local(preferred_zone, zone))
- continue;
+ break;
if (zone_page_state(zone, NR_ALLOC_BATCH) <= 0)
continue;
}
_
Patches currently in -mm which might be from mgorman@xxxxxxx are
origin.patch
mm-introduce-do_shared_fault-and-drop-do_fault-fix-fix.patch
mm-compactionc-isolate_freepages_block-small-tuneup.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
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