From: Joel Fernandes <joelagnelf@nvidia.com>
To: Zqiang <qiang.zhang@linux.dev>
Cc: paulmck@kernel.org, frederic@kernel.org,
neeraj.upadhyay@kernel.org, urezki@gmail.com, boqun@kernel.org,
kunwu.chan@gmail.com, rcu@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] doc: Update recent SRCU API additions to whatisRCU.rst
Date: Sat, 10 Oct 2026 20:15:23 -0400 [thread overview]
Message-ID: <20261011001523.GA2491714@joelbox> (raw)
In-Reply-To: <20261010102813.25460-1-qiang.zhang@linux.dev>
On Sat, Oct 10, 2026 at 06:28:13PM +0800, Zqiang wrote:
> The commit 'dab06d6f9379 ("srcutree: Add an atomic Tree SRCU")'
> introduces some new APIs:
>
> srcu_read_lock_atomic
> srcu_read_unlock_atomic
> synchronize_srcu_atomic
> DEFINE_SRCU_ATOMIC
> DEFINE_STATIC_SRCU_ATOMIC
> init_srcu_struct_atomic
>
> This commit therefore update thems to whatisRCU.rst.
>
> Signed-off-by: Zqiang <qiang.zhang@linux.dev>
Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com>
Applying for 7.5.
thanks,
Joel Fernandes
> ---
> Documentation/RCU/whatisRCU.rst | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/RCU/whatisRCU.rst b/Documentation/RCU/whatisRCU.rst
> index e6767baff2d3..75c50f2f6d79 100644
> --- a/Documentation/RCU/whatisRCU.rst
> +++ b/Documentation/RCU/whatisRCU.rst
> @@ -1209,11 +1209,13 @@ SRCU::
> srcu_read_lock_nmisafe start_poll_synchronize_srcu
> srcu_read_unlock_nmisafe start_poll_synchronize_srcu_expedited
> srcu_read_lock_notrace poll_state_synchronize_srcu
> - srcu_read_unlock_notrace
> + srcu_read_unlock_notrace synchronize_srcu_atomic
> srcu_down_read
> srcu_up_read
> srcu_down_read_fast
> srcu_up_read_fast
> + srcu_read_lock_atomic
> + srcu_read_unlock_atomic
> guard(srcu)()
> scoped_guard(srcu)
> srcu_read_lock_held
> @@ -1229,8 +1231,11 @@ SRCU: Initialization/cleanup/ordering::
> DEFINE_STATIC_SRCU
> DEFINE_SRCU_FAST // for srcu_read_lock_fast() and friends
> DEFINE_STATIC_SRCU_FAST // for srcu_read_lock_fast() and friends
> + DEFINE_SRCU_ATOMIC
> + DEFINE_STATIC_SRCU_ATOMIC
> init_srcu_struct
> init_srcu_struct_fast
> + init_srcu_struct_atomic
> cleanup_srcu_struct
> smp_mb__after_srcu_read_unlock
>
> --
> 2.17.1
>
prev parent reply other threads:[~2026-10-11 0:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-10 10:28 Zqiang
2026-10-11 0:15 ` Joel Fernandes [this message]
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