The patch titled
Subject: mm: memcg: remove unneeded checks from uncharge_page()
has been removed from the -mm tree. Its filename was
mm-memcg-remove-unneeded-checks-from-uncharge_page.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Johannes Weiner <jweiner@xxxxxxxxxx>
Subject: 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@xxxxxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxx>
Cc: Balbir Singh <bsingharora@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff -puN mm/memcontrol.c~mm-memcg-remove-unneeded-checks-from-uncharge_page mm/memcontrol.c
--- a/mm/memcontrol.c~mm-memcg-remove-unneeded-checks-from-uncharge_page
+++ a/mm/memcontrol.c
@@ -3061,8 +3061,7 @@ void mem_cgroup_uncharge_page(struct pag
/* early check. */
if (page_mapped(page))
return;
- if (page->mapping && !PageAnon(page))
- return;
+ VM_BUG_ON(page->mapping && !PageAnon(page));
__mem_cgroup_uncharge_common(page, MEM_CGROUP_CHARGE_TYPE_MAPPED);
}
_
Patches currently in -mm which might be from jweiner@xxxxxxxxxx are
origin.patch
mm-add-extra-free-kbytes-tunable.patch
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