The patch titled
mem-hotplug: separate setup_per_cpu_pageset() into separate functions
has been added to the -mm tree. Its filename is
mem-hotplug-separate-setup_per_cpu_pageset-into-separate-functions.patch
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------------------------------------------------------
Subject: mem-hotplug: separate setup_per_cpu_pageset() into separate functions
From: Wu Fengguang <fengguang.wu@xxxxxxxxx>
No behavior change here.
Move some of setup_per_cpu_pageset() code into a new function
setup_zone_pageset() that will be useful for memory hotplug.
Signed-off-by: Wu Fengguang <fengguang.wu@xxxxxxxxx>
Signed-off-by: Haicheng Li <haicheng.li@xxxxxxxxxxxxxxx>
Reviewed-by: Andi Kleen <andi.kleen@xxxxxxxxx>
Reviewed-by: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 37 ++++++++++++++++++++-----------------
1 file changed, 20 insertions(+), 17 deletions(-)
diff -puN mm/page_alloc.c~mem-hotplug-separate-setup_per_cpu_pageset-into-separate-functions mm/page_alloc.c
--- a/mm/page_alloc.c~mem-hotplug-separate-setup_per_cpu_pageset-into-separate-functions
+++ a/mm/page_alloc.c
@@ -3292,31 +3292,34 @@ static void setup_pagelist_highmark(stru
pcp->batch = PAGE_SHIFT * 8;
}
+static __meminit void setup_zone_pageset(struct zone *zone)
+{
+ int cpu;
+
+ zone->pageset = alloc_percpu(struct per_cpu_pageset);
+
+ for_each_possible_cpu(cpu) {
+ struct per_cpu_pageset *pcp = per_cpu_ptr(zone->pageset, cpu);
+
+ setup_pageset(pcp, zone_batchsize(zone));
+
+ if (percpu_pagelist_fraction)
+ setup_pagelist_highmark(pcp,
+ (zone->present_pages /
+ percpu_pagelist_fraction));
+ }
+}
+
/*
* Allocate per cpu pagesets and initialize them.
* Before this call only boot pagesets were available.
- * Boot pagesets will no longer be used by this processorr
- * after setup_per_cpu_pageset().
*/
void __init setup_per_cpu_pageset(void)
{
struct zone *zone;
- int cpu;
- for_each_populated_zone(zone) {
- zone->pageset = alloc_percpu(struct per_cpu_pageset);
-
- for_each_possible_cpu(cpu) {
- struct per_cpu_pageset *pcp = per_cpu_ptr(zone->pageset, cpu);
-
- setup_pageset(pcp, zone_batchsize(zone));
-
- if (percpu_pagelist_fraction)
- setup_pagelist_highmark(pcp,
- (zone->present_pages /
- percpu_pagelist_fraction));
- }
- }
+ for_each_populated_zone(zone)
+ setup_zone_pageset(zone);
}
static noinline __init_refok
_
Patches currently in -mm which might be from fengguang.wu@xxxxxxxxx are
linux-next.patch
include-linux-fsh-complete-hexification-of-fmode_-constants.patch
vfs-o_-bit-numbers-uniqueness-check.patch
vfs-introduce-fmode_neg_offset-for-allowing-negative-f_pos.patch
vmscan-prevent-get_scan_ratio-rounding-errors.patch
readaheadc-fix-comment.patch
fs-writeback-check-sync-bit-earlier-in-inode_wait_for_writeback.patch
mem-hotplug-separate-setup_per_cpu_pageset-into-separate-functions.patch
mem-hotplug-avoid-multiple-zones-sharing-same-boot-strapping-boot_pageset.patch
mem-hotplug-fix-potential-race-while-building-zonelist-for-new-populated-zone.patch
radix-tree-fix-radix_tree_prev_hole-underflow-case.patch
vfs-add-super-operation-writeback_inodes.patch
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