Messages in this thread | | | Date | Tue, 23 May 2023 09:12:31 -1000 | From | Tejun Heo <> | Subject | Re: [RFC PATCH 2/3] cgroup: Rely on namespace_sem in current_cgns_cgroup_from_root explicitly |
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Hello,
On Tue, May 23, 2023 at 12:42:46PM +0200, Christian Brauner wrote: ... > Nope, we're not putting namespace_sem in a header. The code it protects > is massively sensitive and it interacts with mount_lock and other locks. > This stays private to fs/namespace.c as far as I'm concerned.
Michal, would it make sense to add a separate locking in cgroup.c? It'll add a bit more overhead but not massively so and we should be able to get similar gain without entangling with namespace locking.
Thanks.
-- tejun
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