Messages in this thread | | | From | Austin Schuh <> | Date | Thu, 30 Apr 2015 11:40:07 -0700 | Subject | Re: [PATCH][RT] xfs: Disable preemption when grabbing all icsb counter locks |
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On Thu, Apr 30, 2015 at 11:32 AM, Steven Rostedt <rostedt@goodmis.org> wrote: > On Thu, 30 Apr 2015 20:07:21 +0200 > Peter Zijlstra <peterz@infradead.org> wrote: >> The irony, this is distinctly non deterministic code you're putting >> under a RT specific preempt_disable ;-) > > I know :-( > > Unfortunately, a RT behaving fix would be much more invasive and would > probably require the help of the xfs folks. For now, this just prevents > a live lock that can happen and halt the system, where it becomes > deterministic catastrophe. > > -- Steve
Would it work to instead create a lock to replace the preempt_enable_rt/preempt_disable_rt pair in XFS?
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