Re: [tip:locking/core] locking/rwsem: Fix lock optimistic spinning when owner is not running

From: Peter Zijlstra
Date: Tue Mar 10 2015 - 12:17:09 EST

On Tue, Mar 10, 2015 at 09:04:23AM -0700, Linus Torvalds wrote:
> I think we should just make 'task_struct_cachep' have SLAB_DESTROY_BY_RCU.

Yes, that'll work. Also for the other cases Oleg found previously I
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