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| author | Tejun Heo <tj@kernel.org> | 2022-08-26 11:13:39 -1000 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2022-08-26 11:13:39 -1000 |
| commit | 265efc941fbb5c4478d0466fbb2186bf6d57a9be (patch) | |
| tree | b6e02ec02b16b8a296636e814256c10c639e45eb /kernel/cgroup/cgroup-v1.c | |
| parent | fa7e439cf90ba23ea473d0b7d85efd02ae6ccf94 (diff) | |
| parent | 43626dade36fa74d3329046f4ae2d7fdefe401c6 (diff) | |
Merge branch 'for-6.0-fixes' into for-6.1
Pulling to receive 43626dade36f ("group: Add missing cpus_read_lock() to
cgroup_attach_task_all()") for a follow-up patch.
Diffstat (limited to 'kernel/cgroup/cgroup-v1.c')
| -rw-r--r-- | kernel/cgroup/cgroup-v1.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c index 2ade21b54dc4..ff6a8099eb2a 100644 --- a/kernel/cgroup/cgroup-v1.c +++ b/kernel/cgroup/cgroup-v1.c @@ -59,6 +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); for_each_root(root) { struct cgroup *from_cgrp; @@ -72,6 +73,7 @@ int cgroup_attach_task_all(struct task_struct *from, struct task_struct *tsk) break; } percpu_up_write(&cgroup_threadgroup_rwsem); + cpus_read_unlock(); mutex_unlock(&cgroup_mutex); return retval; |