From: Namhyung Kim <namhyung@kernel.org>
To: Tejun Heo <tj@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>, Will Deacon <will@kernel.org>,
Waiman Long <longman@redhat.com>,
Boqun Feng <boqun.feng@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>,
Byungchul Park <byungchul.park@lge.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Radoslaw Burny <rburny@google.com>,
Zefan Li <lizefan.x@bytedance.com>,
Johannes Weiner <hannes@cmpxchg.org>,
cgroups@vger.kernel.org, paulmck@kernel.org
Subject: Re: [PATCH 02/12] cgroup: rstat: Make cgroup_rstat_cpu_lock name readable
Date: Tue, 8 Feb 2022 11:16:46 -0800 [thread overview]
Message-ID: <CAM9d7cgKLycpFuXq0VgC=ADtAipXtKdfRcDqvZwMrNBz7hXd7A@mail.gmail.com> (raw)
In-Reply-To: <YgK6k4TXnRbm02dh@slm.duckdns.org>
Hi Tejun,
On Tue, Feb 8, 2022 at 10:46 AM Tejun Heo <tj@kernel.org> wrote:
>
> On Tue, Feb 08, 2022 at 10:41:58AM -0800, Namhyung Kim wrote:
> > The raw_spin_lock_init() uses the argument to name its lockdep map.
> > But passing per_cpu_ptr() macro directly makes it a very very long
> > name as it expanded like below:
> >
> > ({ do { const void *__vpp_verify = (typeof((&cgroup_rstat_cpu_lock) ...
> >
> > Let's fix it by passing a local variable instead. With this change,
> > the name now looks like:
> >
> > cgrp_rstat_cpu_lock
> >
> > Cc: Tejun Heo <tj@kernel.org>
> > Cc: Zefan Li <lizefan.x@bytedance.com>
> > Cc: Johannes Weiner <hannes@cmpxchg.org>
> > Cc: cgroups@vger.kernel.org
> > Signed-off-by: Namhyung Kim <namhyung@kernel.org>
>
> Acked-by: Tejun Heo <tj@kernel.org>
Thanks!
>
> but maybe add a comment explaining what's going on?
Sure, I'll add the comment.
next prev parent reply other threads:[~2022-02-08 19:17 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-08 18:41 [RFC 00/12] locking: Separate lock tracepoints from lockdep/lock_stat (v1) Namhyung Kim
2022-02-08 18:41 ` [PATCH 01/12] locking: Pass correct outer wait type info Namhyung Kim
2022-02-08 18:41 ` [PATCH 02/12] cgroup: rstat: Make cgroup_rstat_cpu_lock name readable Namhyung Kim
2022-02-08 18:46 ` Tejun Heo
2022-02-08 19:16 ` Namhyung Kim [this message]
2022-02-08 23:51 ` Namhyung Kim
2022-02-08 18:41 ` [PATCH 03/12] timer: Protect lockdep functions with #ifdef Namhyung Kim
2022-02-08 19:36 ` Steven Rostedt
2022-02-08 20:29 ` Namhyung Kim
2022-02-08 21:19 ` Steven Rostedt
2022-02-08 18:42 ` [PATCH 04/12] workqueue: " Namhyung Kim
2022-02-08 18:48 ` Tejun Heo
2022-02-08 19:17 ` Namhyung Kim
2022-02-08 19:38 ` Steven Rostedt
2022-02-08 18:42 ` [PATCH 05/12] drm/i915: " Namhyung Kim
2022-02-08 18:51 ` Jani Nikula
2022-02-08 19:22 ` Namhyung Kim
2022-02-09 13:49 ` Jani Nikula
2022-02-09 16:27 ` Steven Rostedt
2022-02-09 19:28 ` Namhyung Kim
2022-02-08 18:42 ` [PATCH 06/12] btrfs: change lockdep class size check using ks->names Namhyung Kim
2022-02-08 19:03 ` David Sterba
2022-02-08 18:42 ` [PATCH 07/12] locking: Introduce CONFIG_LOCK_INFO Namhyung Kim
2022-02-08 18:42 ` [PATCH 08/12] locking/mutex: Init name properly w/ CONFIG_LOCK_INFO Namhyung Kim
2022-02-08 18:42 ` [PATCH 09/12] locking: Add more static lockdep init macros Namhyung Kim
2022-02-08 18:42 ` [PATCH 10/12] locking: Add CONFIG_LOCK_TRACEPOINTS option Namhyung Kim
2022-02-08 18:42 ` [PATCH 11/12] locking/mutex: Revive fast functions for CONFIG_LOCK_TRACEPOINTS Namhyung Kim
2022-02-09 8:40 ` Peter Zijlstra
2022-02-09 20:15 ` Namhyung Kim
2022-02-08 18:42 ` [PATCH 12/12] locking: Move lock_acquired() from the fast path Namhyung Kim
2022-02-08 19:14 ` [RFC 00/12] locking: Separate lock tracepoints from lockdep/lock_stat (v1) Namhyung Kim
2022-02-09 9:09 ` Peter Zijlstra
2022-02-09 18:19 ` Waiman Long
2022-02-09 18:29 ` Mathieu Desnoyers
2022-02-09 19:02 ` Waiman Long
2022-02-09 19:17 ` Mathieu Desnoyers
2022-02-09 19:37 ` Waiman Long
2022-02-09 19:22 ` Namhyung Kim
2022-02-09 19:28 ` Mathieu Desnoyers
2022-02-09 19:45 ` Namhyung Kim
2022-02-09 19:56 ` Mathieu Desnoyers
2022-02-09 20:17 ` Waiman Long
2022-02-10 0:27 ` Namhyung Kim
2022-02-10 2:12 ` Waiman Long
2022-02-10 9:33 ` Peter Zijlstra
2022-02-10 0:32 ` Namhyung Kim
2022-02-10 9:13 ` Peter Zijlstra
2022-02-10 19:14 ` Paul E. McKenney
2022-02-10 19:27 ` Waiman Long
2022-02-10 20:10 ` Paul E. McKenney
2022-02-11 5:57 ` Namhyung Kim
2022-02-11 5:55 ` Namhyung Kim
2022-02-11 10:39 ` Peter Zijlstra
2022-02-08 19:43 [RFC RESEND 00/12] locking: Separate lock tracepoints from lockdep/lock_stat (v1.1) Namhyung Kim
2022-02-08 19:43 ` [PATCH 02/12] cgroup: rstat: Make cgroup_rstat_cpu_lock name readable Namhyung Kim
2022-02-09 20:20 ` Waiman Long
2022-02-09 23:29 ` Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAM9d7cgKLycpFuXq0VgC=ADtAipXtKdfRcDqvZwMrNBz7hXd7A@mail.gmail.com' \
--to=namhyung@kernel.org \
--cc=boqun.feng@gmail.com \
--cc=byungchul.park@lge.com \
--cc=cgroups@vger.kernel.org \
--cc=hannes@cmpxchg.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lizefan.x@bytedance.com \
--cc=longman@redhat.com \
--cc=mathieu.desnoyers@efficios.com \
--cc=mingo@kernel.org \
--cc=paulmck@kernel.org \
--cc=peterz@infradead.org \
--cc=rburny@google.com \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
--cc=tj@kernel.org \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).