Commit dfd2f10c authored by Kirill Tkhai's avatar Kirill Tkhai Committed by Linus Torvalds

mm/memcontrol.c: export mem_cgroup_is_root()

This will be used in next patch.

Link: http://lkml.kernel.org/r/153063064347.1818.1987011484100392706.stgit@localhost.localdomainSigned-off-by: default avatarKirill Tkhai <ktkhai@virtuozzo.com>
Acked-by: default avatarVladimir Davydov <vdavydov.dev@gmail.com>
Tested-by: default avatarShakeel Butt <shakeelb@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Josef Bacik <jbacik@fb.com>
Cc: Li RongQing <lirongqing@baidu.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matthias Kaehlcke <mka@chromium.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Sahitya Tummala <stummala@codeaurora.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Waiman Long <longman@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 3b82c4dc
...@@ -318,6 +318,11 @@ struct mem_cgroup { ...@@ -318,6 +318,11 @@ struct mem_cgroup {
extern struct mem_cgroup *root_mem_cgroup; extern struct mem_cgroup *root_mem_cgroup;
static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
{
return (memcg == root_mem_cgroup);
}
static inline bool mem_cgroup_disabled(void) static inline bool mem_cgroup_disabled(void)
{ {
return !cgroup_subsys_enabled(memory_cgrp_subsys); return !cgroup_subsys_enabled(memory_cgrp_subsys);
...@@ -784,6 +789,11 @@ void mem_cgroup_split_huge_fixup(struct page *head); ...@@ -784,6 +789,11 @@ void mem_cgroup_split_huge_fixup(struct page *head);
struct mem_cgroup; struct mem_cgroup;
static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
{
return true;
}
static inline bool mem_cgroup_disabled(void) static inline bool mem_cgroup_disabled(void)
{ {
return true; return true;
......
...@@ -261,11 +261,6 @@ struct cgroup_subsys_state *vmpressure_to_css(struct vmpressure *vmpr) ...@@ -261,11 +261,6 @@ struct cgroup_subsys_state *vmpressure_to_css(struct vmpressure *vmpr)
return &container_of(vmpr, struct mem_cgroup, vmpressure)->css; return &container_of(vmpr, struct mem_cgroup, vmpressure)->css;
} }
static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
{
return (memcg == root_mem_cgroup);
}
#ifdef CONFIG_MEMCG_KMEM #ifdef CONFIG_MEMCG_KMEM
/* /*
* This will be the memcg's index in each cache's ->memcg_params.memcg_caches. * This will be the memcg's index in each cache's ->memcg_params.memcg_caches.
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment