On Wed, Mar 07, 2018 at 05:23:17PM +0100, Peter Zijlstra wrote:
> On Wed, Mar 07, 2018 at 06:54:08AM -0800, Paul E. McKenney wrote:
> > One downside of allowing RCU callback functions to sleep is that
> > one poorly written callback can block a bunch of other ones.
> Not to mention that we really want the RCU callbacks to be simple and
> short. Needing fancy things in the callback really should be the
> exception not the rule.

Very much agreed with that as well!

Besides, Tejun's queue_rcu_work() provides this functionality and
seems pretty straightforward to use.

                                                        Thanx, Paul

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