Messages in this thread | | | Subject | Re: [PATCH v2 2/3] mutex: add support for reservation style locks, v2 | From | Peter Zijlstra <> | Date | Thu, 04 Apr 2013 18:39:44 +0200 |
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On Thu, 2013-04-04 at 15:31 +0200, Daniel Vetter wrote: > The trick with the current code is that the oldest task > will never see an -EAGAIN ever and hence is guaranteed to make forward > progress. If the task is really unlucky though it might be forced to > wait > for a younger task for every ww_mutex it tries to acquire.
Agreed on that.. while I didn't state this my proposed thing should behave the same. It follows from the symmetry breaking in that only younger tasks can get 'kill'ed.
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