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authorJohannes Weiner <jweiner@redhat.com>2012-01-12 17:18:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-12 20:13:06 -0800
commit40f23a21a8501c1b2c65c50c19b516488ac31313 (patch)
tree4e70dbd9e7cc1dda350156bf05786ede7dbf8256 /mm/page_cgroup.c
parent7a0524cfc8f9f585471a31b1282a9ce4a1a7d444 (diff)
mm: memcg: remove unneeded checks from uncharge_page()
mem_cgroup_uncharge_page() is only called on either freshly allocated pages without page->mapping or on rmapped PageAnon() pages. There is no need to check for a page->mapping that is not an anon_vma. Signed-off-by: Johannes Weiner <jweiner@redhat.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Balbir Singh <bsingharora@gmail.com> Cc: David Rientjes <rientjes@google.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_cgroup.c')
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