linux-kernel - Re: [PATCH] [PATCH] Gaurantee spinlocks implicit barrier for !PREEMPT

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Message-ID: <51602459.3040105@synopsys.com>
Date:	Sat, 6 Apr 2013 19:04:17 +0530
From:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
To:	<tglx@...utronix.de>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Christian Ruppert <christian.ruppert@...lis.com>,
	Pierrick Hascoet <pierrick.hascoet@...lis.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <srostedt@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] [PATCH] Gaurantee spinlocks implicit barrier for !PREEMPT_COUNT

> On 04/05/2013 10:06 AM, Vineet Gupta wrote:
> Hi Thomas,
> 
> Given that we are closing on 3.9 release, and that one/more of these patches fix a
> real issue for us - can you please consider my earlier patch to fix
> timer_pending() only for 3.9 [http://www.spinics.net/lists/kernel/msg1508224.html]
> This will be a localized / low risk change for this late in cycle.
> 
> For 3.10 - assuming preempt_* change is blessed, we can revert this one and add
> that fuller/better fix.
> 
> What do you think ?
> 
> Thx,
> -Vineet
> 

Ping ! Sorry for pestering, but one of the fixes is needed before 3.9 goes out.

Simple localized fix: http://www.spinics.net/lists/kernel/msg1508224.html
Better but risky: http://www.spinics.net/lists/kernel/msg1510885.html

Thx,
-Vineet
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