From: Randy Dunlap <rdunlap@infradead.org>
To: Karl Mehltretter <kmehltretter@gmail.com>,
Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <skhan@linuxfoundation.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Boqun Feng <boqun@kernel.org>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/7] docs: this_cpu_ops: Fix SRCU helper names
Date: Sat, 22 Aug 2026 10:28:48 -0700 [thread overview]
Message-ID: <f5c01293-8d88-45b3-bd9d-7dc6d39b63b5@infradead.org> (raw)
In-Reply-To: <20260822121651.1559-6-kmehltretter@gmail.com>
On 8/22/26 5:16 AM, Karl Mehltretter wrote:
> Use the actual srcu_read_lock_nmisafe() and atomic_long_inc()
> helper names.
>
> Fixes: df0cee43114b ("docs: Improve discussion of this_cpu_ptr(), add raw_cpu_ptr()")
> Assisted-by: Codex:gpt-5.6-sol
> Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Thanks.
> ---
> Documentation/core-api/this_cpu_ops.rst | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/core-api/this_cpu_ops.rst b/Documentation/core-api/this_cpu_ops.rst
> index 533ac5dd57507..367706d1714b1 100644
> --- a/Documentation/core-api/this_cpu_ops.rst
> +++ b/Documentation/core-api/this_cpu_ops.rst
> @@ -150,10 +150,10 @@ preemptible code are addressed by raw_cpu_ptr(), but such use cases need
> to handle cases where two different CPUs are accessing the same per cpu
> variable, which might well be that of a third CPU. These use cases are
> typically performance optimizations. For example, SRCU implements a pair
> -of counters as a pair of per-CPU variables, and rcu_read_lock_nmisafe()
> +of counters as a pair of per-CPU variables, and srcu_read_lock_nmisafe()
> uses raw_cpu_ptr() to get a pointer to some CPU's counter, and uses
> -atomic_inc_long() to handle migration between the raw_cpu_ptr() and
> -the atomic_inc_long().
> +atomic_long_inc() to handle migration between the raw_cpu_ptr() and
> +the atomic_long_inc().
>
> Per cpu variables and offsets
> -----------------------------
--
~Randy
next prev parent reply other threads:[~2026-08-22 17:28 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-22 12:16 [PATCH 0/7] docs: core-api: Fix stale function names and a broken example Karl Mehltretter
2026-08-22 12:16 ` [PATCH 1/7] docs: cpu_hotplug: Fix multi-instance removal calls Karl Mehltretter
2026-08-22 17:25 ` Randy Dunlap
2026-08-24 16:57 ` Jonathan Corbet
2026-08-24 18:05 ` Karl Mehltretter
2026-08-24 18:28 ` Jonathan Corbet
2026-08-22 12:16 ` [PATCH 2/7] docs: irq-affinity: Restore grep in example Karl Mehltretter
2026-08-22 17:25 ` Randy Dunlap
2026-08-22 12:16 ` [PATCH 3/7] docs: dma-attributes: Fix dma_alloc_attrs() name Karl Mehltretter
2026-08-22 17:25 ` Randy Dunlap
2026-08-24 9:26 ` Marek Szyprowski
2026-08-22 12:16 ` [PATCH 4/7] docs: swiotlb: Fix maximum mapping size helper Karl Mehltretter
2026-08-22 17:26 ` Randy Dunlap
2026-08-22 12:16 ` [PATCH 5/7] docs: this_cpu_ops: Fix SRCU helper names Karl Mehltretter
2026-08-22 16:39 ` Paul E. McKenney
2026-08-22 17:28 ` Randy Dunlap [this message]
[not found] ` <20260822121651.1559-7-kmehltretter@gmail.com>
2026-08-22 12:28 ` [PATCH 6/7] docs: xarray: Fix xas_try_split() name Zi Yan
2026-08-22 17:30 ` Randy Dunlap
[not found] ` <20260822121651.1559-8-kmehltretter@gmail.com>
2026-08-22 17:32 ` [PATCH 7/7] docs: debugobjects: Fix debug_object_init() name Randy Dunlap
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