Messages in this thread |  | | Date | Tue, 21 Aug 2018 10:27:11 -0700 | From | Tejun Heo <> | Subject | Re: [PATCH 1/2] workqueue: skip lockdep wq dependency in cancel_work_sync() |
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Hello, Johannes.
On Tue, Aug 21, 2018 at 07:18:14PM +0200, Johannes Berg wrote: > > But this can lead to a deadlock. I'd much rather err on the side of > > discouraging complex lock dancing around ordered workqueues, no? > > What can lead to a deadlock?
Oh not this particular case, but I was wondering whether we'd be missing legitimate possible deadlock cases by skipping lockdep for all cancel_work_sync()'s as they can actually flush.
Thanks.
-- tejun
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