Re: [PATCH] rcu: Call wake_nocb_leader_defer() with 'FORCE' when nocb_q_count is high

2018-02-28 Thread Paul E. McKenney
On Wed, Feb 28, 2018 at 02:49:02PM +0900, Byungchul Park wrote: > If many callbacks have been queued and waking up the nocb leader should > be deferred, then we should wake up the leader unconditionally when > it's safe to do so. > > It was well managed in commit fbce7497ee(rcu: Parallelize and ec

[PATCH] rcu: Call wake_nocb_leader_defer() with 'FORCE' when nocb_q_count is high

2018-02-27 Thread Byungchul Park
If many callbacks have been queued and waking up the nocb leader should be deferred, then we should wake up the leader unconditionally when it's safe to do so. It was well managed in commit fbce7497ee(rcu: Parallelize and economize NOCB kthread wakeups) at first, but the commit 8be6e1b15c(rcu: Use