All of lore.kernel.org
 help / color / mirror / Atom feed
From: Yong Zhang <yong.zhang0@gmail.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org
Subject: Re: [RFC] [PATCH -rt 5/5] cpufreq: get rid of get_online_cpus()/put_online_cpus()
Date: Mon, 24 Oct 2011 19:56:24 +0800	[thread overview]
Message-ID: <20111024115624.GB2635@zhy> (raw)
In-Reply-To: <alpine.LFD.2.02.1110241343130.2633@ionos>

On Mon, Oct 24, 2011 at 01:45:16PM +0200, Thomas Gleixner wrote:
> On Mon, 24 Oct 2011, Yong Zhang wrote:
> > On Mon, Oct 24, 2011 at 11:24:51AM +0200, Thomas Gleixner wrote:
> > > > No sure whether it's big issue or not.
> > > > Mind showing more about your concern?
> > > 
> > > This is probably not the only place which will run into that issue and
> > > I have not much interest to patch all those sites.
> > 
> > If so, I think that kind of violation has been caught in mainline,
> > because mainline has had CPU_DOWN_PREPARE called under
> > cpu_hotplug.lock, right?
> > 
> > Or am I missing something?
> 
> Hmm, no. I obviously forgot that I moved it in RT :(
> 
> So yes, it should be safe. Though the question is why cpufreq does not
> suffer from that that problem in mainline.

By this one: peter_zijlstra-fix-cpufreq.patch

Thanks,
Yong

      reply	other threads:[~2011-10-24 11:56 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-16 10:56 [RFC] [PATCH -rt 0/5] patchset focusing on cpu hotplug Yong Zhang
2011-10-16 10:56 ` [PATCH -rt 1/5] hotplug: sync_unplug: No '\n' in task name Yong Zhang
2011-10-16 10:56 ` [PATCH -rt 2/5] hotplug: Call cpu_unplug_begin() a little early Yong Zhang
2011-10-16 10:56 ` [RFC] [PATCH -rt 3/5] printk: don't call printk_tick in printk_needs_cpu() Yong Zhang
2011-10-16 10:56 ` [PATCH -rt 4/5] workqueue: hotplug fix Yong Zhang
2011-10-19  7:14   ` Thomas Gleixner
2011-10-24  2:26     ` Yong Zhang
2011-10-24  9:25       ` Thomas Gleixner
2011-10-16 10:56 ` [RFC] [PATCH -rt 5/5] cpufreq: get rid of get_online_cpus()/put_online_cpus() Yong Zhang
2011-10-19  9:12   ` Thomas Gleixner
2011-10-24  2:44     ` Yong Zhang
2011-10-24  9:24       ` Thomas Gleixner
2011-10-24 11:30         ` Yong Zhang
2011-10-24 11:45           ` Thomas Gleixner
2011-10-24 11:56             ` Yong Zhang [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=20111024115624.GB2635@zhy \
    --to=yong.zhang0@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rt-users@vger.kernel.org \
    --cc=tglx@linutronix.de \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.