The patch titled
Subject: mm/page_alloc: in zone_pcp_update(), uze zone_pageset_init()
has been added to the -mm tree. Its filename is
mm-page_alloc-in-zone_pcp_update-uze-zone_pageset_init.patch
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From: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx>
Subject: mm/page_alloc: in zone_pcp_update(), uze zone_pageset_init()
Previously, zone_pcp_update() called pageset_set_batch() directly,
essentially assuming that percpu_pagelist_fraction == 0. Correct this by
calling zone_pageset_init(), which chooses the appropriate ->batch and
->high calculations.
Signed-off-by: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx>
Cc: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx>
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff -puN mm/page_alloc.c~mm-page_alloc-in-zone_pcp_update-uze-zone_pageset_init mm/page_alloc.c
--- a/mm/page_alloc.c~mm-page_alloc-in-zone_pcp_update-uze-zone_pageset_init
+++ a/mm/page_alloc.c
@@ -6098,11 +6098,9 @@ void free_contig_range(unsigned long pfn
void __meminit zone_pcp_update(struct zone *zone)
{
unsigned cpu;
- unsigned long batch;
mutex_lock(&pcp_batch_high_lock);
- batch = zone_batchsize(zone);
for_each_possible_cpu(cpu)
- pageset_set_batch(per_cpu_ptr(zone->pageset, cpu), batch);
+ zone_pageset_init(zone, cpu);
mutex_unlock(&pcp_batch_high_lock);
}
#endif
_
Patches currently in -mm which might be from cody@xxxxxxxxxxxxxxxxxx are
mm-page_alloc-factor-out-setting-of-pcp-high-and-pcp-batch.patch
mm-page_alloc-prevent-concurrent-updaters-of-pcp-batch-and-high.patch
mm-page_alloc-insert-memory-barriers-to-allow-async-update-of-pcp-batch-and-high.patch
mm-page_alloc-protect-pcp-batch-accesses-with-access_once.patch
mm-page_alloc-convert-zone_pcp_update-to-rely-on-memory-barriers-instead-of-stop_machine.patch
mm-page_alloc-when-handling-percpu_pagelist_fraction-dont-unneedly-recalulate-high.patch
mm-page_alloc-factor-setup_pageset-into-pageset_init-and-pageset_set_batch.patch
mm-page_alloc-relocate-comment-to-be-directly-above-code-it-refers-to.patch
mm-page_alloc-factor-zone_pageset_init-out-of-setup_zone_pageset.patch
mm-page_alloc-in-zone_pcp_update-uze-zone_pageset_init.patch
mm-page_alloc-rename-setup_pagelist_highmark-to-match-naming-of-pageset_set_batch.patch
--
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