The patch titled
Subject: memcg: get rid of mem_cgroup_root_css for !CONFIG_MEMCG
has been removed from the -mm tree. Its filename was
memcg-get-rid-of-mem_cgroup_root_css-for-config_memcg.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Michal Hocko <mhocko@xxxxxxx>
Subject: memcg: get rid of mem_cgroup_root_css for !CONFIG_MEMCG
The only user is cgwb_bdi_init and that one depends on
CONFIG_CGROUP_WRITEBACK which in turn depends on CONFIG_MEMCG so it
doesn't make much sense to definte an empty stub for !CONFIG_MEMCG.
Moreover ERR_PTR(-EINVAL) is ugly and would lead to runtime crashes if
used in unguarded code paths. Better fail during compilation.
Signed-off-by: Michal Hocko <mhocko@xxxxxxx>
Reviewed-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/memcontrol.h | 2 --
1 file changed, 2 deletions(-)
diff -puN include/linux/memcontrol.h~memcg-get-rid-of-mem_cgroup_root_css-for-config_memcg include/linux/memcontrol.h
--- a/include/linux/memcontrol.h~memcg-get-rid-of-mem_cgroup_root_css-for-config_memcg
+++ a/include/linux/memcontrol.h
@@ -498,8 +498,6 @@ void mem_cgroup_split_huge_fixup(struct
#else /* CONFIG_MEMCG */
struct mem_cgroup;
-#define mem_cgroup_root_css ((struct cgroup_subsys_state *)ERR_PTR(-EINVAL))
-
static inline void mem_cgroup_events(struct mem_cgroup *memcg,
enum mem_cgroup_events_index idx,
unsigned int nr)
_
Patches currently in -mm which might be from mhocko@xxxxxxx are
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
