Messages in this thread | | | Date | Wed, 5 Aug 2009 09:11:40 -0700 | Subject | Re: [PATCH 6/6] Makes procs file writable to move all threads by tgid at once | From | Paul Menage <> |
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On Wed, Aug 5, 2009 at 3:20 AM, Louis Rilling<Louis.Rilling@kerlabs.com> wrote: > > The downside of this is teaching lockdep about this recursive locking. Not that > simple actually...
Don't we just give each thread's lock its own lock class? That's what we did for the cgroup hierarchy_mutex.
> so that such cases are currently handled using a higher-level > lock that prevents races in locking the whole chain (there was one such example > for locking all vmas with KVM). IIUC, the intent here is to avoid such > higher-level lock.
cgroup_mutex already fulfills the role of the higher-level lock.
Paul
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