Creates pageset_set_batch() for use in setup_pageset().
pageset_set_batch() imitates the functionality of
setup_pagelist_highmark(), but uses the boot time
(percpu_pagelist_fraction == 0) calculations for determining ->high
based on ->batch.
Signed-off-by: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8fcced7..5877cf0 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4004,6 +4004,14 @@ static int __meminit zone_batchsize(struct zone *zone)
#endif
}
+/* a companion to setup_pagelist_highmark() */
+static void pageset_set_batch(struct per_cpu_pageset *p, unsigned long batch)
+{
+ struct per_cpu_pages *pcp = &p->pcp;
+ pcp->high = 6 * batch;
+ pcp->batch = max(1UL, 1 * batch);
+}
+
static void setup_pageset(struct per_cpu_pageset *p, unsigned long batch)
{
struct per_cpu_pages *pcp;
@@ -4013,8 +4021,7 @@ static void setup_pageset(struct per_cpu_pageset *p, unsigned long batch)
pcp = &p->pcp;
pcp->count = 0;
- pcp->high = 6 * batch;
- pcp->batch = max(1UL, 1 * batch);
+ pageset_set_batch(p, batch);
for (migratetype = 0; migratetype < MIGRATE_PCPTYPES; migratetype++)
INIT_LIST_HEAD(&pcp->lists[migratetype]);
}
@@ -4023,7 +4030,6 @@ static void setup_pageset(struct per_cpu_pageset *p, unsigned long batch)
* setup_pagelist_highmark() sets the high water mark for hot per_cpu_pagelist
* to the value high for the pageset p.
*/
-
static void setup_pagelist_highmark(struct per_cpu_pageset *p,
unsigned long high)
{
--
1.8.2.1
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