memcg: generate file modified notifications on "memory.events"
cgroup core only recently grew generic notification support. Wire up
"memory.events" so that it triggers a file modified event whenever its
content changes.
v2: Refreshed on top of mem_cgroup relocation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Michal Hocko <mhocko@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Li Zefan <lizefan@huawei.com>
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e672f26..9f33140 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5202,6 +5202,7 @@
{
.name = "events",
.flags = CFTYPE_NOT_ON_ROOT,
+ .file_offset = offsetof(struct mem_cgroup, events_file),
.seq_show = memory_events_show,
},
{ } /* terminate */