The patch titled
Subject: mm-workingset-per-cgroup-cache-thrash-detection-fix
has been added to the -mm tree. Its filename is
mm-workingset-per-cgroup-cache-thrash-detection-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-workingset-per-cgroup-cache-thrash-detection-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-workingset-per-cgroup-cache-thrash-detection-fix.patch
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------------------------------------------------------
From: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Subject: mm-workingset-per-cgroup-cache-thrash-detection-fix
Do not return from workingset_activation() with locked rcu and page.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/workingset.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN mm/workingset.c~mm-workingset-per-cgroup-cache-thrash-detection-fix mm/workingset.c
--- a/mm/workingset.c~mm-workingset-per-cgroup-cache-thrash-detection-fix
+++ a/mm/workingset.c
@@ -317,9 +317,10 @@ void workingset_activation(struct page *
* root_mem_cgroup even for !CONFIG_MEMCG.
*/
if (!mem_cgroup_disabled() && !memcg)
- return;
+ goto out;
lruvec = mem_cgroup_zone_lruvec(page_zone(page), memcg);
atomic_long_inc(&lruvec->inactive_age);
+out:
unlock_page_memcg(memcg);
}
_
Patches currently in -mm which might be from sergey.senozhatsky@xxxxxxxxx are
mm-workingset-per-cgroup-cache-thrash-detection-fix.patch
zram-export-the-number-of-available-comp-streams.patch
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