diff options
| author | Johannes Weiner <hannes@cmpxchg.org> | 2014-12-10 15:44:00 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 17:41:07 -0800 |
| commit | f4aaa8b43d90294ca7546317997c452600e9a8a7 (patch) | |
| tree | 1e60bc5a4605a92af6a2d03b5e0f9574fe0a2c77 /include | |
| parent | 18eca2e636f921e6350dc31b5b450bb4102d664f (diff) | |
| download | linux-f4aaa8b43d90294ca7546317997c452600e9a8a7.tar.gz | |
mm: memcontrol: remove unnecessary PCG_MEM memory charge flag
PCG_MEM is a remnant from an earlier version of 0a31bc97c80c ("mm:
memcontrol: rewrite uncharge API"), used to tell whether migration cleared
a charge while leaving pc->mem_cgroup valid and PCG_USED set. But in the
final version, mem_cgroup_migrate() directly uncharges the source page,
rendering this distinction unnecessary. Remove it.
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 da62ee2be28b..97536e685843 100644 --- a/include/linux/page_cgroup.h +++ b/include/linux/page_cgroup.h @@ -4,7 +4,6 @@ enum { /* flags for mem_cgroup */ PCG_USED = 0x01, /* This page is charged to a memcg */ - PCG_MEM = 0x02, /* This page holds a memory charge */ }; struct pglist_data; |