Messages in this thread | | | Date | Wed, 23 May 2018 12:10:44 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH] bdi: Move cgroup bdi_writeback to a dedicated low concurrency workqueue |
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On Wed, May 23, 2018 at 11:51:43AM -0700, Tejun Heo wrote: > On Wed, May 23, 2018 at 11:39:07AM -0700, Paul E. McKenney wrote: > > > While this resolves the problem at hand, it might be a good idea to > > > isolate rcu_exp_work to its own workqueue too as it can be used from > > > various paths and is prone to this sort of indirect A-A deadlocks. > > > > Commit ad7c946b35ad4 ("rcu: Create RCU-specific workqueues with rescuers") > > was accepted into mainline this past merge window. Does that do what > > you want, or are you looking for something else? > > Ah, that does it. Sorry, was looking at an older kernel.
No worries -- after all, I must confess that I was a bit slow in getting to this.
Thanx, Paul
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