mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Tejun Heo <tj@kernel.org>
To: Roman Gushchin <guro@fb.com>
Cc: cgroups@vger.kernel.org, Zefan Li <lizefan.x@bytedance.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] cgroup: inline cgroup_task_freeze()
Date: Mon, 10 May 2021 14:54:31 -0400	[thread overview]
Message-ID: <YJmBZ3IVCiAK7WF+@slm.duckdns.org> (raw)
In-Reply-To: <20210510184556.946798-1-guro@fb.com>

On Mon, May 10, 2021 at 11:45:56AM -0700, Roman Gushchin wrote:
> After the introduction of the cgroup.kill there is only one call site
> of cgroup_task_freeze() left: cgroup_exit(). cgroup_task_freeze() is
> currently taking rcu_read_lock() to read task's cgroup flags, but
> because it's always called with css_set_lock locked, the rcu protection
> is excessive.
> 
> Simplify the code by inlining cgroup_task_freeze().
> 
> Signed-off-by: Roman Gushchin <guro@fb.com>

Applied to cgroup/for-5.14.

Thanks.

-- 
tejun

      reply	other threads:[~2021-05-10 18:54 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-10 18:45 Roman Gushchin
2021-05-10 18:54 ` Tejun Heo [this message]

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=YJmBZ3IVCiAK7WF+@slm.duckdns.org \
    --to=tj@kernel.org \
    --cc=cgroups@vger.kernel.org \
    --cc=guro@fb.com \
    --cc=hannes@cmpxchg.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lizefan.x@bytedance.com \
    /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
all inboxes | Powered by JetHome®