Messages in this thread | | | Date | Tue, 6 Dec 2016 16:30:32 -0500 | From | Tejun Heo <> | Subject | Re: [PATCH 1/4] sched: move IO scheduling accounting from io_schedule_timeout() to __schedule() |
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Hello,
On Mon, Oct 31, 2016 at 10:45:56AM -0600, Tejun Heo wrote: > Tracking the owners of mutexes and rwsems does help quite a bit. I > don't think it's as simple as inheriting io sleep state from the > current owner tho. The owner might be running or in a non-IO sleep > when others try to grab the mutex. It is an option to ignore those > cases but this would have a real possibility to lead to surprising > results in some corner cases. If we choose to propagate dynamically, > it becomes an a lot more complex problem and I don't think it'd be > justfiable. > > Unless there can be a simple enough and reliable solution, I think > it'd be better to stick with explicit marking.
Just posted the fixed version for the first patch. Any more thoughts on this?
Thanks.
-- tejun
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