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memcg: move_lists on page not page_cgroup

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Each caller of mem_cgroup_move_lists is having to use page_get_page_cgroup:
it's more convenient if it acts upon the page itself not the page_cgroup; and
in a later patch this becomes important to handle within memcontrol.c.

Signed-off-by: Hugh Dickins <[email protected]>
Cc: David Rientjes <[email protected]>
Acked-by: Balbir Singh <[email protected]>
Acked-by: KAMEZAWA Hiroyuki <[email protected]>
Cc: Hirokazu Takahashi <[email protected]>
Cc: YAMAMOTO Takashi <[email protected]>
Cc: Paul Menage <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Hugh Dickins 2008-03-04 14:29:03 -08:00 • committed by Linus Torvalds
commit 427d5416f3
4 changed files with 9 additions and 7 deletions
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4
mm/memcontrol.c
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@ -407,11 +407,13 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem)
/*
* This routine assumes that the appropriate zone's lru lock is already held
*/
void mem_cgroup_move_lists(struct page_cgroup *pc, bool active)
void mem_cgroup_move_lists(struct page *page, bool active)
{
struct page_cgroup *pc;
struct mem_cgroup_per_zone *mz;
unsigned long flags;
pc = page_get_page_cgroup(page);
if (!pc)
return;