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authorLi Zefan <lizf@cn.fujitsu.com>2011-12-27 14:25:55 +0800
committerTejun Heo <tj@kernel.org>2012-01-05 09:59:46 -0800
commit0d19ea866562e46989412a0676412fa0983c9ce7 (patch)
tree335439bc9d13da86a7b6955907a92ddab03ceb57 /block
parent305f3c8b20ba1ca94829329acdbf22e689304dba (diff)
cgroup: fix to allow mounting a hierarchy by name
If we mount a hierarchy with a specified name, the name is unique, and we can use it to mount the hierarchy without specifying its set of subsystem names. This feature is documented is Documentation/cgroups/cgroups.txt section 2.3 Here's an example: # mount -t cgroup -o cpuset,name=myhier xxx /cgroup1 # mount -t cgroup -o name=myhier xxx /cgroup2 But it was broken by commit 32a8cf235e2f192eb002755076994525cdbaa35a (cgroup: make the mount options parsing more accurate) This fixes the regression. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org
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