Messages in this thread | | | Date | Wed, 2 Sep 2020 13:32:04 +0200 | From | Michal Hocko <> | Subject | Re: [PATCH v2 00/28] The new cgroup slab memory controller |
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On Wed 02-09-20 11:53:00, Vlastimil Babka wrote: > >> > > Thread #2: ccs killer kthread > >> > > css_killed_work_fn > >> > > cgroup_mutex <- Grab this Mutex > >> > > mem_cgroup_css_offline > >> > > memcg_offline_kmem.part > >> > > memcg_deactivate_kmem_caches > >> > > get_online_mems > >> > > mem_hotplug_lock <- waits for Thread#1 to get read access
And one more thing. THis has been brought up several times already. Maybe I have forgoten but why do we take hotplug locks in this path in the first place? Memory hotplug notifier takes slab_mutex so this shouldn't be really needed. -- Michal Hocko SUSE Labs
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