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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2008-02-07 00:14:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-07 08:42:21 -0800 |
| commit | c0149530d0bb356c933a09f3c8103ea02f452d8a (patch) | |
| tree | 84f378ab7209bac903d49fe4e0807537c609697c /mm/memcontrol.c | |
| parent | 91a45470f7ddc322073752e711a2e8dcbc339e6f (diff) | |
| download | linux-c0149530d0bb356c933a09f3c8103ea02f452d8a.tar.gz | |
per-zone and reclaim enhancements for memory controller: nid/zid helper function for cgroup
Add macro to get node_id and zone_id of page_cgroup. Will be used in per-zone-xxx patches and others. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.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>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 14cb6142ec4c..422f779a5b21 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -135,6 +135,16 @@ struct page_cgroup { #define PAGE_CGROUP_FLAG_CACHE (0x1) /* charged as cache */ #define PAGE_CGROUP_FLAG_ACTIVE (0x2) /* page is active in this cgroup */ +static inline int page_cgroup_nid(struct page_cgroup *pc) +{ + return page_to_nid(pc->page); +} + +static inline enum zone_type page_cgroup_zid(struct page_cgroup *pc) +{ + return page_zonenum(pc->page); +} + enum { MEM_CGROUP_TYPE_UNSPEC = 0, MEM_CGROUP_TYPE_MAPPED, |