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From: Dipankar Sarma <dipankar@in.ibm.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>, Dave Jones <davej@redhat.com>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Gautham Shenoy <ego@in.ibm.com>
Subject: Re: Remove hotplug cpu crap from cpufreq.
Date: Fri, 3 Nov 2006 03:10:34 +0530	[thread overview]
Message-ID: <20061102214034.GB3407@in.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0611021129470.25218@g5.osdl.org>

On Thu, Nov 02, 2006 at 11:30:20AM -0800, Linus Torvalds wrote:
> 
> 
> On Fri, 3 Nov 2006, Dipankar Sarma wrote:
> > 
> > IMO, the right thing to do would be to convert lock_cpu_hotplug() to
> > a get_cpu_hotplug()/put_cpu_hotplug() type semantics and use a more
> > scalable implementation underneath (as opposed to a global
> > semaphore/mutex).
> 
> Yes, I think Gautham's patch-series basically did exactly that, no? Except 
> it kept the old name.

Yes, atleast that is the idea - turn it into a scalable refcount model
as opposed to a global lock.

Thanks
Dipankar

      reply	other threads:[~2006-11-02 21:40 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-11-01 22:59 Dave Jones
2006-11-01 23:09 ` Rafael J. Wysocki
2006-11-01 23:21   ` Linus Torvalds
2006-11-02  7:33     ` Martin Lorenz
2006-11-01 23:09 ` Linus Torvalds
2006-11-01 23:32   ` Dave Jones
2006-11-02 18:46     ` Dipankar Sarma
2006-11-02  0:17   ` Andrew Morton
2006-11-02  4:27     ` Gautham R Shenoy
2006-11-02 19:04     ` Dipankar Sarma
2006-11-02 19:30       ` Linus Torvalds
2006-11-02 21:40         ` Dipankar Sarma [this message]

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