Messages in this thread | | | Date | Mon, 25 Apr 2016 12:00:23 -0400 | From | Tejun Heo <> | Subject | Re: [PATCH 1/1] [RFC] workqueue: fix ghost PENDING flag while doing MQ IO |
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On Mon, Apr 25, 2016 at 11:48:47AM -0400, Tejun Heo wrote: > Heh, excellent debugging. I wonder how old this bug is. cc'ing David
I just went through the history. So, we used to have clear_bit() instead of atomic_long_set() but clear_bit() doesn't imply any barrier either, so kudos to you. You just debugged an issue which is most likely has been there for over a decade! :)
-- tejun
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