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| author |   Konstantin Khlebnikov <khlebnikov@openvz.org> | 2012-05-29 15:06:57 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-29 16:22:26 -0700 |
| commit | 3d58ab5c97fa2d145050242137ac39ca7d3bc2fc (patch) | |
| tree | e9d11fc9ababf9eafcb54cc60facd793eeafaf74 /mm/vmscan.c | |
| parent | memcg: make threshold index in the right position (diff) | |
| download | linux-dev-3d58ab5c97fa2d145050242137ac39ca7d3bc2fc.tar.xz linux-dev-3d58ab5c97fa2d145050242137ac39ca7d3bc2fc.zip | |
mm/memcg: use vm_swappiness from target memory cgroup
Use vm_swappiness from memory cgroup which is triggered this memory
reclaim. This is more reasonable and allows to kill one argument.
[akpm@linux-foundation.org: fix build (patch skew)]
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujtisu.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index c94d17d75d73..0e2131deb2d3 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1622,12 +1622,11 @@ static unsigned long shrink_list(enum lru_list lru, unsigned long nr_to_scan, return shrink_inactive_list(nr_to_scan, mz, sc, priority, lru); } -static int vmscan_swappiness(struct mem_cgroup_zone *mz, - struct scan_control *sc) +static int vmscan_swappiness(struct scan_control *sc) { if (global_reclaim(sc)) return vm_swappiness; - return mem_cgroup_swappiness(mz->mem_cgroup); + return mem_cgroup_swappiness(sc->target_mem_cgroup); } /* @@ -1695,8 +1694,8 @@ static void get_scan_count(struct mem_cgroup_zone *mz, struct scan_control *sc, * With swappiness at 100, anonymous and file have the same priority. * This scanning priority is essentially the inverse of IO cost. */ - anon_prio = vmscan_swappiness(mz, sc); - file_prio = 200 - vmscan_swappiness(mz, sc); + anon_prio = vmscan_swappiness(sc); + file_prio = 200 - vmscan_swappiness(sc); /* * OK, so we have swap space and a fair amount of page cache @@ -1741,7 +1740,7 @@ out: unsigned long scan; scan = zone_nr_lru_pages(mz, lru); - if (priority || noswap || !vmscan_swappiness(mz, sc)) { + if (priority || noswap || !vmscan_swappiness(sc)) { scan >>= priority; if (!scan && force_scan) scan = SWAP_CLUSTER_MAX; |