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authorLi Zefan <lizefan@huawei.com>2012-06-06 19:12:30 -0700
committerTejun Heo <tj@kernel.org>2012-06-06 19:12:30 -0700
commit6be96a5c905178637ec06a5d456a76b2b304fca3 (patch)
tree06cc22397df498c7e4dbb7195f77d1bc587295e3 /Documentation/cgroups
parent967db0ea65b0bf8507a7643ac8f296c4f2c0a834 (diff)
downloadlinux-6be96a5c905178637ec06a5d456a76b2b304fca3.tar.gz
cgroup: remove hierarchy_mutex
It was introduced for memcg to iterate cgroup hierarchy without holding cgroup_mutex, but soon after that it was replaced with a lockless way in memcg. No one used hierarchy_mutex since that, so remove it. Signed-off-by: Li Zefan <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'Documentation/cgroups')
-rw-r--r--Documentation/cgroups/cgroups.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/cgroups/cgroups.txt b/Documentation/cgroups/cgroups.txt
index 8e74980ab38..e86faaea7d6 100644
--- a/Documentation/cgroups/cgroups.txt
+++ b/Documentation/cgroups/cgroups.txt
@@ -656,7 +656,7 @@ example in cpusets, no task may attach before 'cpus' and 'mems' are set
up.
void bind(struct cgroup *root)
-(cgroup_mutex and ss->hierarchy_mutex held by caller)
+(cgroup_mutex held by caller)
Called when a cgroup subsystem is rebound to a different hierarchy
and root cgroup. Currently this will only involve movement between