per-zone and reclaim enhancements for memory controller: per-zone-lock for cgroup
Now, lru is per-zone.
Then, lru_lock can be (should be) per-zone, too.
This patch implementes per-zone lru lock.
lru_lock is placed into mem_cgroup_per_zone struct.
lock can be accessed by
mz = mem_cgroup_zoneinfo(mem_cgroup, node, zone);
&mz->lru_lock
or
mz = page_cgroup_zoneinfo(page_cgroup);
&mz->lru_lock
Signed-off-by: KAMEZAWA hiroyuki <kmaezawa.hiroyu@jp.fujitsu.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Kirill Korotaev <dev@sw.ru>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Paul Menage <menage@google.com>
Cc: Pavel Emelianov <xemul@openvz.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 file changed