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Subject[patch 1/8] memcg: remove unused retry signal from reclaim
If the memcg reclaim code detects the target memcg below its limit it
exits and returns a guaranteed non-zero value so that the charge is

Nowadays, the charge side checks the memcg limit itself and does not
rely on this non-zero return value trick.

This patch removes it. The reclaim code will now always return the
true number of pages it reclaimed on its own.

Signed-off-by: Johannes Weiner <>
Acked-by: Rik van Riel <>
Acked-by: Ying Han <>
Acked-by: KAMEZAWA Hiroyuki <>
Reviewed-by: Michal Hocko <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
mm/memcontrol.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 010f916..bf5ab87 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1503,7 +1503,7 @@ static int mem_cgroup_hierarchical_reclaim(struct mem_cgroup *root_mem,
if (!res_counter_soft_limit_excess(&root_mem->res))
return total;
} else if (mem_cgroup_margin(root_mem))
- return 1 + total;
+ return total;
return total;

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