From: Andrew Morton <akpm@osdl.org>
To: Linus Torvalds <torvalds@osdl.org>
Cc: davej@redhat.com, linux-kernel@vger.kernel.org,
ashok.raj@intel.com, Ingo Molnar <mingo@elte.hu>
Subject: Re: remove cpu hotplug bustification in cpufreq.
Date: Sat, 22 Jul 2006 22:34:25 -0700 [thread overview]
Message-ID: <20060722223425.c94a858e.akpm@osdl.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0607221813020.29649@g5.osdl.org>
On Sat, 22 Jul 2006 18:15:32 -0700 (PDT)
Linus Torvalds <torvalds@osdl.org> wrote:
>
>
> On Sat, 22 Jul 2006, Andrew Morton wrote:
> >
> > It was just wrong in conception. We should not and probably cannot fix it.
> > Let's just delete it all, then implement version 2.
>
> Well, I just got Ashok's trial patches which turns the thing into a rwsem
> as I outlined earlier.
Mark my words ;)
> I'll try them out. If they don't work, we should just delete the lock and
> go totally back to square 1.
rwsem conversion has the potential to merely hide the problem. Ingo, does
lockdep detect recursive down_read()?
next prev parent reply other threads:[~2006-07-23 5:41 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-22 19:40 Dave Jones
2006-07-23 0:10 ` Linus Torvalds
2006-07-23 1:06 ` Andrew Morton
2006-07-23 1:15 ` Linus Torvalds
2006-07-23 4:09 ` Arjan van de Ven
2006-07-23 17:20 ` Linus Torvalds
2006-07-23 18:12 ` Linus Torvalds
2006-07-23 18:34 ` Patrick McFarland
2006-07-24 10:52 ` Arjan van de Ven
2006-07-23 5:34 ` Andrew Morton [this message]
2006-07-23 8:29 ` Arjan van de Ven
2006-07-23 16:24 ` Ingo Molnar
2006-07-25 0:21 Chuck Ebbert
2006-07-25 0:59 ` Linus Torvalds
2006-07-25 15:06 ` Erik Mouw
2006-07-25 18:54 ` Ingo Molnar
2006-07-25 19:30 ` Arjan van de Ven
2006-07-25 20:57 ` Linus Torvalds
2006-07-25 20:46 ` Dave Jones
2006-07-25 20:59 ` Linus Torvalds
2006-07-26 17:12 ` Russell King
2006-07-26 17:53 ` Dave Jones
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