The patch titled
Subject: mm: vmscan: protect shrinker idr replace with CONFIG_MEMCG
has been added to the -mm tree. Its filename is
mm-vmscan-protect-shrinker-idr-replace-with-config_memcg.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-vmscan-protect-shrinker-idr-replace-with-config_memcg.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-vmscan-protect-shrinker-idr-replace-with-config_memcg.patch
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------------------------------------------------------
From: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
Subject: mm: vmscan: protect shrinker idr replace with CONFIG_MEMCG
Since commit 0a432dcbeb32edcd ("mm: shrinker: make shrinker not depend on
memcg kmem"), shrinkers' idr is protected by CONFIG_MEMCG instead of
CONFIG_MEMCG_KMEM, so it makes no sense to protect shrinker idr replace
with CONFIG_MEMCG_KMEM.
Link: http://lkml.kernel.org/r/1575486978-45249-1-git-send-email-yang.shi@xxxxxxxxxxxxxxxxx
Signed-off-by: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
Cc: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Roman Gushchin <guro@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/vmscan.c~mm-vmscan-protect-shrinker-idr-replace-with-config_memcg
+++ a/mm/vmscan.c
@@ -387,7 +387,7 @@ void register_shrinker_prepared(struct s
{
down_write(&shrinker_rwsem);
list_add_tail(&shrinker->list, &shrinker_list);
-#ifdef CONFIG_MEMCG_KMEM
+#ifdef CONFIG_MEMCG
if (shrinker->flags & SHRINKER_MEMCG_AWARE)
idr_replace(&shrinker_idr, shrinker, shrinker->id);
#endif
_
Patches currently in -mm which might be from yang.shi@xxxxxxxxxxxxxxxxx are
mm-vmscan-protect-shrinker-idr-replace-with-config_memcg.patch
