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| author | Johannes Weiner <hannes@cmpxchg.org> | 2014-12-10 23:43:57 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-11 01:41:07 (GMT) |
| commit | 18eca2e636f921e6350dc31b5b450bb4102d664f (patch) | |
| tree | c2087da91edc48f98a01b32c7213300f7786b097 /include | |
| parent | 7bdd143c37e591c254d0991ac398a53f3f9ef1af (diff) | |
| download | linux-18eca2e636f921e6350dc31b5b450bb4102d664f.tar.xz | |
mm: memcontrol: remove unnecessary PCG_MEMSW memory+swap charge flag
Now that mem_cgroup_swapout() fully uncharges the page, every page that is
still in use when reaching mem_cgroup_uncharge() is known to carry both
the memory and the memory+swap charge. Simplify the uncharge path and
remove the PCG_MEMSW page flag accordingly.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Hugh Dickins <hughd@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/page_cgroup.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h index 5c831f1..da62ee2 100644 --- a/include/linux/page_cgroup.h +++ b/include/linux/page_cgroup.h @@ -5,7 +5,6 @@ enum { /* flags for mem_cgroup */ PCG_USED = 0x01, /* This page is charged to a memcg */ PCG_MEM = 0x02, /* This page holds a memory charge */ - PCG_MEMSW = 0x04, /* This page holds a memory+swap charge */ }; struct pglist_data; |