Message-ID: <515E54BD.2090300@synopsys.com>
Date: Fri, 5 Apr 2013 10:06:13 +0530
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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To: <tglx@linutronix.de>
CC: Christian Ruppert <christian.ruppert@abilis.com>,
        Pierrick Hascoet <pierrick.hascoet@abilis.com>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        Steven Rostedt <srostedt@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@kernel.org>,
        <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] [PATCH] Gaurantee spinlocks implicit barrier for !PREEMPT_COUNT
References: <alpine.LFD.2.02.1304031433350.21884@ionos> <1364998282-21437-1-git-send-email-vgupta@synopsys.com> <20130404152808.GB15261@ab42.lan>
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Hi Thomas,

On 04/04/2013 08:58 PM, Christian Ruppert wrote:
> Hi Vineet,
>
> Our stress testing campaign has just successfully completed on this
> patch. It seems to solve several issues we have seen in unpatched
> versions, amongst others the original timer issue, a crash in hrtimer
> rb-tree manipulation etc.
>
> Greetings,
>   Christian

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
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