The patch titled
memcg: don't trigger oom at page migration
has been removed from the -mm tree. Its filename was
memcg-dont-trigger-oom-at-page-migration.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/
------------------------------------------------------
Subject: memcg: don't trigger oom at page migration
From: Daisuke Nishimura <nishimura@xxxxxxxxxxxxxxxxx>
I think triggering OOM at mem_cgroup_prepare_migration would be just a bit
overkill. Returning -ENOMEM would be enough for
mem_cgroup_prepare_migration. The caller would handle the case anyway.
Signed-off-by: Daisuke Nishimura <nishimura@xxxxxxxxxxxxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Acked-by: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/memcontrol.c~memcg-dont-trigger-oom-at-page-migration mm/memcontrol.c
--- a/mm/memcontrol.c~memcg-dont-trigger-oom-at-page-migration
+++ a/mm/memcontrol.c
@@ -1361,7 +1361,7 @@ int mem_cgroup_prepare_migration(struct
unlock_page_cgroup(pc);
if (mem) {
- ret = mem_cgroup_try_charge(NULL, GFP_KERNEL, &mem);
+ ret = __mem_cgroup_try_charge(NULL, GFP_KERNEL, &mem, false);
css_put(&mem->css);
}
*ptr = mem;
_
Patches currently in -mm which might be from nishimura@xxxxxxxxxxxxxxxxx are
origin.patch
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