diff options
| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2022-08-26 11:48:29 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2022-08-26 11:14:34 -1000 |
| commit | 075b593f54f0f3883532cb750081cae6917bc8fe (patch) | |
| tree | 11ead9cc37bd67c702ef94862f922d1575169e95 /kernel/cgroup/cgroup-v1.c | |
| parent | 265efc941fbb5c4478d0466fbb2186bf6d57a9be (diff) | |
cgroup: Use cgroup_attach_{lock,unlock}() from cgroup_attach_task_all()
No behavior changes; preparing for potential locking changes in future.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by:Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/cgroup/cgroup-v1.c')
| -rw-r--r-- | kernel/cgroup/cgroup-v1.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c index ff6a8099eb2a..52bb5a74a23b 100644 --- a/kernel/cgroup/cgroup-v1.c +++ b/kernel/cgroup/cgroup-v1.c @@ -59,8 +59,7 @@ int cgroup_attach_task_all(struct task_struct *from, struct task_struct *tsk) int retval = 0; mutex_lock(&cgroup_mutex); - cpus_read_lock(); - percpu_down_write(&cgroup_threadgroup_rwsem); + cgroup_attach_lock(true); for_each_root(root) { struct cgroup *from_cgrp; @@ -72,8 +71,7 @@ int cgroup_attach_task_all(struct task_struct *from, struct task_struct *tsk) if (retval) break; } - percpu_up_write(&cgroup_threadgroup_rwsem); - cpus_read_unlock(); + cgroup_attach_unlock(true); mutex_unlock(&cgroup_mutex); return retval; |