Messages in this thread | | | Date | Thu, 19 Aug 2021 20:28:49 +0200 | From | Sebastian Andrzej Siewior <> | Subject | Re: [patch V5 41/72] locking/ww_mutex: Gather mutex_waiter initialization |
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On 2021-08-19 20:17:53 [+0200], Peter Zijlstra wrote: > You mean the 'use_ww_ctx && !ww_ctx' case? > > Would not the below also help with that?
Yes, it does, just tested.
> diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c > index 3a65bf4bacfd..d456579d0952 100644 > --- a/kernel/locking/mutex.c > +++ b/kernel/locking/mutex.c > @@ -618,7 +618,7 @@ __mutex_lock_common(struct mutex *lock, unsigned int state, unsigned int subclas > > debug_mutex_lock_common(lock, &waiter); > waiter.task = current; > - if (ww_ctx) > + if (use_ww_ctx) > waiter.ww_ctx = ww_ctx; > > lock_contended(&lock->dep_map, ip);
Sebastian
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