The patch titled
Subject: mm/memcg: add missed warning in mem_cgroup_lruvec
has been removed from the -mm tree. Its filename was
mm-memcontrol-rewrite-mem_cgroup_page_lruvec-fix.patch
This patch was dropped because it was folded into mm-memcontrol-rewrite-mem_cgroup_page_lruvec.patch
------------------------------------------------------
From: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx>
Subject: mm/memcg: add missed warning in mem_cgroup_lruvec
commit "(mm/memcontrol:rewrite mem_cgroup_page_lruvec())" on mm tree use
mem_cgroup_lruvec to rewrite mem_cgroup_page_lruvec, but it missed a
DEBUG_VM warning as following, since we always charge a page before
return from allocation. Add back this warning is helpful:
VM_WARN_ON_ONCE(!memcg);
Link: https://lkml.kernel.org/r/94f17bb7-ec61-5b72-3555-fabeb5a4d73b@xxxxxxxxxxxxxxxxx
Signed-off-by: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Roman Gushchin <guro@xxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Yafang Shao <laoar.shao@xxxxxxxxx>
Cc: Alexander Duyck <alexander.h.duyck@xxxxxxxxxxxxxxx>
Cc: Hui Su <sh_def@xxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/memcontrol.h | 2 ++
1 file changed, 2 insertions(+)
--- a/include/linux/memcontrol.h~mm-memcontrol-rewrite-mem_cgroup_page_lruvec-fix
+++ a/include/linux/memcontrol.h
@@ -613,6 +613,8 @@ static inline struct lruvec *mem_cgroup_
struct mem_cgroup_per_node *mz;
struct lruvec *lruvec;
+ VM_WARN_ON_ONCE(!memcg);
+
if (mem_cgroup_disabled()) {
lruvec = &pgdat->__lruvec;
goto out;
_
Patches currently in -mm which might be from alex.shi@xxxxxxxxxxxxxxxxx are
mm-memcg-bail-early-from-swap-accounting-if-memcg-disabled.patch
mm-memcg-warning-on-memcg-after-readahead-page-charged.patch
mm-memcontrol-rewrite-mem_cgroup_page_lruvec.patch
