Re: [PATCH 5/7] rcu/trace: Use rsp's gp_seq in acceleration's rcu_grace_period tracepoint

2020-06-18 Thread Joel Fernandes
On Thu, Jun 18, 2020 at 03:27:21PM -0700, Paul E. McKenney wrote: > On Thu, Jun 18, 2020 at 04:29:53PM -0400, Joel Fernandes (Google) wrote: > > During acceleration of CB, the rsp's gp_seq is rcu_seq_snap'd. This is > > the value used for acceleration - it is the value of gp_seq at which it > > is

Re: [PATCH 5/7] rcu/trace: Use rsp's gp_seq in acceleration's rcu_grace_period tracepoint

2020-06-18 Thread Paul E. McKenney
On Thu, Jun 18, 2020 at 04:29:53PM -0400, Joel Fernandes (Google) wrote: > During acceleration of CB, the rsp's gp_seq is rcu_seq_snap'd. This is > the value used for acceleration - it is the value of gp_seq at which it > is safe the execute all callbacks in the callback list. > > The rdp's

[PATCH 5/7] rcu/trace: Use rsp's gp_seq in acceleration's rcu_grace_period tracepoint

2020-06-18 Thread Joel Fernandes (Google)
During acceleration of CB, the rsp's gp_seq is rcu_seq_snap'd. This is the value used for acceleration - it is the value of gp_seq at which it is safe the execute all callbacks in the callback list. The rdp's gp_seq is not very useful for this scenario. Make rcu_grace_period report the rsp's