Messages in this thread | | | Date | Thu, 23 Jun 2016 20:55:56 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v3 00/13] Virtually mapped stacks with guard pages (x86, core) |
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On Thu, Jun 23, 2016 at 08:12:16PM +0200, Oleg Nesterov wrote: > > And probably kill task_struct->blocked_on? I do not see the point of > this task->blocked_on != waiter check.
I think that came about because of PI and or deadlock detection. Of course, the current mutex code doesn't have anything like that these days, and rt_mutex has task_struct::pi_blocked_on.
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