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authorLi Zefan <lizf@cn.fujitsu.com>2011-03-23 16:42:48 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-23 19:46:35 -0700
commit523fb486bfd94e3a3b16a42bcb21b1959cf14df8 (patch)
tree34c1b15a9bc55ef7a3bafb87cce3d3d184d78906 /fs
parentcpuset: fix unchecked calls to NODEMASK_ALLOC() (diff)
downloadlinux-dev-523fb486bfd94e3a3b16a42bcb21b1959cf14df8.tar.xz
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cpuset: hold callback_mutex in cpuset_post_clone()
Chaning cpuset->mems/cpuset->cpus should be protected under callback_mutex. cpuset_clone() doesn't follow this rule. It's ok because it's called when creating and initializing a cgroup, but we'd better hold the lock to avoid subtil break in the future. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Paul Menage <menage@google.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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