Messages in this thread | | | Subject | Re: [PATCH] locking/mutex: Set and clear owner using WRITE_ONCE() | From | Jason Low <> | Date | Mon, 23 May 2016 13:40:06 -0700 |
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On Fri, 2016-05-20 at 18:00 -0700, Davidlohr Bueso wrote: > On Fri, 20 May 2016, Waiman Long wrote: > > >I think mutex-debug.h also needs similar changes for completeness. > > Maybe, but given that with debug the wait_lock is unavoidable, doesn't > this send the wrong message?
The mutex_set_owner() and mutex_clear_owner() can still get called in the fastpath without the wait_lock for the debug case too correct? If that's the case, then the WRITE_ONCE would still make sense to have in the debug case.
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