Re: [PATCH 3/3] rcu: Comment on the extraneous delta test on rcu_seq_done_exact()

2025-04-05 Thread Joel Fernandes
> On Mar 26, 2025, at 6:37 PM, Paul E. McKenney wrote: > > On Mon, Mar 24, 2025 at 01:01:55PM -0400, Joel Fernandes wrote: >> From: Frederic Weisbecker >> >> The numbers used in rcu_seq_done_exact() lack some explanation behind >> their magic. Especially after the commit: >> >>85aad7cc4

Re: [PATCH 3/3] rcu: Comment on the extraneous delta test on rcu_seq_done_exact()

2025-03-26 Thread Paul E. McKenney
On Mon, Mar 24, 2025 at 01:01:55PM -0400, Joel Fernandes wrote: > From: Frederic Weisbecker > > The numbers used in rcu_seq_done_exact() lack some explanation behind > their magic. Especially after the commit: > > 85aad7cc4178 ("rcu: Fix get_state_synchronize_rcu_full() GP-start > detection

[PATCH 3/3] rcu: Comment on the extraneous delta test on rcu_seq_done_exact()

2025-03-24 Thread Joel Fernandes
From: Frederic Weisbecker The numbers used in rcu_seq_done_exact() lack some explanation behind their magic. Especially after the commit: 85aad7cc4178 ("rcu: Fix get_state_synchronize_rcu_full() GP-start detection") which reported a subtle issue where a new GP sequence snapshot was taken o