Re: [PATCH 07/10] rcu: Temporarily assume that nohz full CPUs might not be NOCB

2020-05-14 Thread Frederic Weisbecker
On Thu, May 14, 2020 at 08:50:32AM -0700, Paul E. McKenney wrote: > On Thu, May 14, 2020 at 01:08:28AM +0200, Frederic Weisbecker wrote: > > On Wed, May 13, 2020 at 11:25:27AM -0700, Paul E. McKenney wrote: > > > On Wed, May 13, 2020 at 06:47:11PM +0200, Frederic Weisbecker wrote: > > > > So far no

Re: [PATCH 07/10] rcu: Temporarily assume that nohz full CPUs might not be NOCB

2020-05-14 Thread Paul E. McKenney
On Thu, May 14, 2020 at 01:08:28AM +0200, Frederic Weisbecker wrote: > On Wed, May 13, 2020 at 11:25:27AM -0700, Paul E. McKenney wrote: > > On Wed, May 13, 2020 at 06:47:11PM +0200, Frederic Weisbecker wrote: > > > So far nohz_full CPUs had to be nocb. This requirement may change > > > temporarily

Re: [PATCH 07/10] rcu: Temporarily assume that nohz full CPUs might not be NOCB

2020-05-13 Thread Frederic Weisbecker
On Wed, May 13, 2020 at 11:25:27AM -0700, Paul E. McKenney wrote: > On Wed, May 13, 2020 at 06:47:11PM +0200, Frederic Weisbecker wrote: > > So far nohz_full CPUs had to be nocb. This requirement may change > > temporarily as we are working on preparing RCU to be able to toggle the > > nocb state o

Re: [PATCH 07/10] rcu: Temporarily assume that nohz full CPUs might not be NOCB

2020-05-13 Thread Paul E. McKenney
On Wed, May 13, 2020 at 06:47:11PM +0200, Frederic Weisbecker wrote: > So far nohz_full CPUs had to be nocb. This requirement may change > temporarily as we are working on preparing RCU to be able to toggle the > nocb state of a CPU. Once that is done and nohz_full can be toggled as > well dynamica

[PATCH 07/10] rcu: Temporarily assume that nohz full CPUs might not be NOCB

2020-05-13 Thread Frederic Weisbecker
So far nohz_full CPUs had to be nocb. This requirement may change temporarily as we are working on preparing RCU to be able to toggle the nocb state of a CPU. Once that is done and nohz_full can be toggled as well dynamically, we'll restore that initial requirement. Thus for now as a temporary sta