On Fri, Jun 28, 2024 at 01:20:55PM +0200, Frederic Weisbecker wrote: > Le Thu, Jun 27, 2024 at 11:53:29AM -0700, Paul E. McKenney a écrit : > > On Thu, Jun 27, 2024 at 01:36:58PM +0200, Frederic Weisbecker wrote: > > > When the grace period kthread checks the extended quiescent state > > > counter of a CPU, full ordering is necessary to ensure that either: > > > > Just to make sure that I understand... > > > > I need to replace these commits in -rcu: > > > > da979d0162fc6 rcu: Remove full ordering on second EQS snapshot > > 6411f4185f657 rcu: Remove superfluous full memory barrier upon first EQS snapshot > > dec56ca5f1c34 rcu/exp: Remove superfluous full memory barrier upon first EQS snapshot > > > > With these three patches, and keep these three commits as they are? > > > > d43a302fc08a5 rcu: Remove full memory barrier on boot time eqs sanity check > > b1c36aa90cbf1 rcu: Remove full memory barrier on RCU stall printout > > 64d68f1d53f77 rcu/exp: Remove redundant full memory barrier at the end of GP > > Exactly! Those were the precisions I forgot to mention. Done, and started testing. If all goes well, this might make tomorrow's -next. Thanx, Paul
