From: "Paul E. McKenney" <paulmck@kernel.org>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: frederic@kernel.org, rcu@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel-team@meta.com,
rostedt@goodmis.org, Andrii Nakryiko <andrii@kernel.org>
Subject: Re: [PATCH v2 rcu 13/13] srcu: Improve srcu_read_lock_lite() kernel-doc comment
Date: Tue, 15 Oct 2024 08:59:50 -0700 [thread overview]
Message-ID: <3fa5f1c1-3635-408d-b0f2-e3aa63ecb76d@paulmck-laptop> (raw)
In-Reply-To: <CAEf4BzYOdvO_PY-QZySa1qtWqZ_+1zySrw+0Qo1cc9HL5=L4aA@mail.gmail.com>
On Fri, Oct 11, 2024 at 10:57:13AM -0700, Andrii Nakryiko wrote:
> On Fri, Oct 11, 2024 at 10:39 AM Paul E. McKenney <paulmck@kernel.org> wrote:
> >
> > Where RCU is watching is where it is OK to invoke rcu_read_lock().
> >
> > Reported-by: Andrii Nakryiko <andrii@kernel.org>
> > Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
> > ---
> > include/linux/srcu.h | 3 ++-
> > 1 file changed, 2 insertions(+), 1 deletion(-)
> >
>
> Acked-by: Andrii Nakryiko <andrii@kernel.org>
Applied, thank you!
Thanx, Paul
> > diff --git a/include/linux/srcu.h b/include/linux/srcu.h
> > index 4ba96e2cfa405..bab1dae3f69e6 100644
> > --- a/include/linux/srcu.h
> > +++ b/include/linux/srcu.h
> > @@ -270,7 +270,8 @@ static inline int srcu_read_lock(struct srcu_struct *ssp) __acquires(ssp)
> > * synchronize_rcu_expedited(), IPIs and all.
> > *
> > * Note that srcu_read_lock_lite() can be invoked only from those contexts
> > - * where RCU is watching. Otherwise, lockdep will complain.
> > + * where RCU is watching, that is, from contexts where it would be legal
> > + * to invoke rcu_read_lock(). Otherwise, lockdep will complain.
> > */
> > static inline int srcu_read_lock_lite(struct srcu_struct *ssp) __acquires(ssp)
> > {
> > --
> > 2.40.1
> >
next prev parent reply other threads:[~2024-10-15 15:59 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-09 18:07 [PATCH rcu 0/12] SRCU-lite changes for v6.13 Paul E. McKenney
2024-10-09 18:07 ` [PATCH rcu 01/12] srcu: Rename srcu_might_be_idle() to srcu_should_expedite() Paul E. McKenney
2024-10-14 8:56 ` Neeraj Upadhyay
2024-10-09 18:07 ` [PATCH rcu 02/12] srcu: Introduce srcu_gp_is_expedited() helper function Paul E. McKenney
2024-10-14 8:57 ` Neeraj Upadhyay
2024-10-09 18:07 ` [PATCH rcu 03/12] srcu: Renaming in preparation for additional reader flavor Paul E. McKenney
2024-10-14 9:10 ` Neeraj Upadhyay
2024-10-14 16:52 ` Paul E. McKenney
2024-10-15 3:25 ` Neeraj Upadhyay
2024-10-09 18:07 ` [PATCH rcu 04/12] srcu: Bit manipulation changes " Paul E. McKenney
2024-10-14 9:12 ` Neeraj Upadhyay
2024-10-14 16:51 ` Paul E. McKenney
2024-10-15 3:32 ` Neeraj Upadhyay
2024-10-09 18:07 ` [PATCH rcu 05/12] srcu: Standardize srcu_data pointers to "sdp" and similar Paul E. McKenney
2024-10-14 9:15 ` Neeraj Upadhyay
2024-10-14 16:49 ` Paul E. McKenney
2024-10-15 0:29 ` Paul E. McKenney
2024-10-15 5:10 ` Neeraj Upadhyay
2024-10-09 18:07 ` [PATCH rcu 06/12] srcu: Add srcu_read_lock_lite() and srcu_read_unlock_lite() Paul E. McKenney
2024-11-11 12:54 ` Neeraj Upadhyay
2024-11-11 15:26 ` Paul E. McKenney
2024-11-11 16:51 ` Neeraj Upadhyay
2024-11-12 1:28 ` Paul E. McKenney
2024-11-12 1:31 ` [PATCH rcu 1/3] srcu: Remove smp_mb() from srcu_read_unlock_lite() Paul E. McKenney
2024-11-12 3:17 ` Neeraj Upadhyay
2024-11-12 1:31 ` [PATCH rcu 2/3] srcu: Check for srcu_read_lock_lite() across all CPUs Paul E. McKenney
2024-11-12 3:28 ` Neeraj Upadhyay
2024-11-12 5:48 ` Paul E. McKenney
2024-11-12 1:31 ` [PATCH rcu 3/3] srcu: Unconditionally record srcu_read_lock_lite() in ->srcu_reader_flavor Paul E. McKenney
2024-11-12 4:32 ` Neeraj Upadhyay
2024-11-12 3:15 ` [PATCH rcu 06/12] srcu: Add srcu_read_lock_lite() and srcu_read_unlock_lite() Neeraj Upadhyay
2024-10-09 18:07 ` [PATCH rcu 07/12] srcu: Allow inlining of __srcu_read_{,un}lock_lite() Paul E. McKenney
2024-10-09 18:07 ` [PATCH rcu 08/12] rcutorture: Expand RCUTORTURE_RDR_MASK_[12] to eight bits Paul E. McKenney
2024-10-09 18:07 ` [PATCH rcu 09/12] rcutorture: Add reader_flavor parameter for SRCU readers Paul E. McKenney
2024-10-09 18:07 ` [PATCH rcu 10/12] rcutorture: Add srcu_read_lock_lite() support to rcutorture.reader_flavor Paul E. McKenney
2024-10-09 18:07 ` [PATCH rcu 11/12] rcutorture: Add light-weight SRCU scenario Paul E. McKenney
2024-10-09 18:07 ` [PATCH rcu 12/12] refscale: Add srcu_read_lock_lite() support using "srcu-lite" Paul E. McKenney
2024-10-10 15:38 ` Frederic Weisbecker
2024-10-10 16:06 ` Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 0/13] SRCU-lite changes for v6.13 Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 01/13] srcu: Rename srcu_might_be_idle() to srcu_should_expedite() Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 02/13] srcu: Introduce srcu_gp_is_expedited() helper function Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 03/13] srcu: Renaming in preparation for additional reader flavor Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 04/13] srcu: Bit manipulation changes " Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 05/13] srcu: Standardize srcu_data pointers to "sdp" and similar Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 06/13] srcu: Add srcu_read_lock_lite() and srcu_read_unlock_lite() Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 07/13] srcu: Allow inlining of __srcu_read_{,un}lock_lite() Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 08/13] rcutorture: Expand RCUTORTURE_RDR_MASK_[12] to eight bits Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 09/13] rcutorture: Add reader_flavor parameter for SRCU readers Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 10/13] rcutorture: Add srcu_read_lock_lite() support to rcutorture.reader_flavor Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 11/13] rcutorture: Add light-weight SRCU scenario Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 12/13] refscale: Add srcu_read_lock_lite() support using "srcu-lite" Paul E. McKenney
2024-10-11 17:39 ` [PATCH v2 rcu 13/13] srcu: Improve srcu_read_lock_lite() kernel-doc comment Paul E. McKenney
2024-10-11 17:57 ` Andrii Nakryiko
2024-10-15 15:59 ` Paul E. McKenney [this message]
2024-10-15 16:11 ` [PATCH v3 rcu 0/13] SRCU-lite changes for v6.13 Paul E. McKenney
2024-10-15 16:10 ` [PATCH rcu 01/15] srcu: Rename srcu_might_be_idle() to srcu_should_expedite() Paul E. McKenney
2024-10-15 16:10 ` [PATCH rcu 02/15] srcu: Introduce srcu_gp_is_expedited() helper function Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 03/15] srcu: Renaming in preparation for additional reader flavor Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 04/15] srcu: Bit manipulation changes " Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 05/15] srcu: Standardize srcu_data pointers to "sdp" and similar Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 06/15] srcu: Improve srcu_read_lock{,_nmisafe}() comments Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 07/15] srcu: Create CPP macros for normal and NMI-safe SRCU readers Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 08/15] srcu: Add srcu_read_lock_lite() and srcu_read_unlock_lite() Paul E. McKenney
2024-11-04 23:27 ` Frederic Weisbecker
2024-11-05 0:39 ` Paul E. McKenney
2024-11-11 11:17 ` Neeraj Upadhyay
2024-11-11 15:17 ` Paul E. McKenney
2024-11-11 17:46 ` Andrii Nakryiko
2024-11-11 17:51 ` Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 09/15] srcu: Allow inlining of __srcu_read_{,un}lock_lite() Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 10/15] rcutorture: Expand RCUTORTURE_RDR_MASK_[12] to eight bits Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 11/15] rcutorture: Add reader_flavor parameter for SRCU readers Paul E. McKenney
2024-11-12 4:42 ` Neeraj Upadhyay
2024-11-12 19:27 ` Paul E. McKenney
2024-11-13 3:20 ` Neeraj Upadhyay
2024-10-15 16:11 ` [PATCH rcu 12/15] rcutorture: Add srcu_read_lock_lite() support to rcutorture.reader_flavor Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 13/15] rcutorture: Add light-weight SRCU scenario Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 14/15] refscale: Add srcu_read_lock_lite() support using "srcu-lite" Paul E. McKenney
2024-10-29 0:25 ` [PATCH rcu v4 " Paul E. McKenney
2024-10-15 16:11 ` [PATCH rcu 15/15] srcu: Improve srcu_read_lock_lite() kernel-doc comment Paul E. McKenney
2024-11-12 4:37 ` [PATCH v3 rcu 0/13] SRCU-lite changes for v6.13 Neeraj Upadhyay
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