Re: [PATCH v4 3/7] cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock
Date
Mon, 3 Dec 2018 17:55:32 +0000
On Mon, Dec 03, 2018 at 08:17:06AM -0800, Tejun Heo wrote: > 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.