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| author | Cody P Schafer | 2013-07-04 00:01:41 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2013-07-04 01:07:27 +0200 |
| commit | 169f6c1999ca6d0c5e06e8d810817ed3d1ebf017 (patch) | |
| tree | 7b09525d53302021a32ce8f3a6671ee3428be614 /mm/vmscan.c | |
| parent | mm/page_alloc: rename setup_pagelist_highmark() to match naming of pageset_se... (diff) | |
| download | kernel-qcow2-linux-169f6c1999ca6d0c5e06e8d810817ed3d1ebf017.tar.gz kernel-qcow2-linux-169f6c1999ca6d0c5e06e8d810817ed3d1ebf017.tar.xz kernel-qcow2-linux-169f6c1999ca6d0c5e06e8d810817ed3d1ebf017.zip | |
mm/page_alloc: don't re-init pageset in zone_pcp_update()
When memory hotplug is triggered, we call pageset_init() on
per-cpu-pagesets which both contain pages and are in use, causing both the
leakage of those pages and (potentially) bad behaviour if a page is
allocated from a pageset while it is being cleared.
Avoid this by factoring out pageset_set_high_and_batch() (which contains
all needed logic too set a pageset's ->high and ->batch inrespective of
system state) from zone_pageset_init() and using the new
pageset_set_high_and_batch() instead of zone_pageset_init() in
zone_pcp_update().
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
0 files changed, 0 insertions, 0 deletions