Re: [PATCH v4 3/7] cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock
From: Tejun Heo <tj@kernel.org>
Date: 2018-12-03 16:17:14
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On Fri, Nov 30, 2018 at 03:47:41PM -0800, Roman Gushchin wrote:
+ * nr_descendants and nr_dying_descendants are protected + * by cgroup_mutex and css_set_lock.
Can you be a bit more specific - hold both for writes, either for reads. Thanks. -- tejun