On Fri, Mar 01, 2024 at 03:30:01PM -0500, Steven Rostedt wrote: > On Fri, 1 Mar 2024 12:25:10 -0800 > "Paul E. McKenney" <paul...@kernel.org> wrote: > > > > That would work for me. If there are no objections, I will make this > > > change. > > > > But I did check the latency of synchronize_rcu_tasks_rude() (about 100ms) > > and synchronize_rcu() (about 20ms). This is on a 80-hardware-thread > > x86 system that is being flooded with calls to one or the other of > > these two functions, but is otherwise idle. So adding that unnecessary > > synchronize_rcu() adds about 20% to that synchronization delay. > > > > Which might still be OK, but... In the immortal words of MS-DOS, > > "Are you sure?". ;-) > > It's just safe to keep it. It's definitely not a fast path.
OK, you got it! ;-) Thanx, Paul