From: Andi Kleen <ak@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Andi Kleen <andi@firstfloor.org>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@kernel.org>
Subject: Re: [PATCH 1/3] x86, perf: Use a new PMU ack sequence
Date: Wed, 21 Oct 2015 14:46:38 -0700 [thread overview]
Message-ID: <20151021214638.GH15102@tassilo.jf.intel.com> (raw)
In-Reply-To: <20151021203621.GJ2508@worktop.programming.kicks-ass.net>
> > v2:
> > Use new ack sequence unconditionally. Remove pmu reset code.
>
> So this is not something we can easily revert if things go bad. Esp.
> since you build on it with the next patches.
Ok, and?
You want me to go back to the previous patch? That one is easily
undoable (just disable the flag for the model)
Another alternative would be to fork the PMI handler into a new and
an old version, that is switchable.
-Andi
--
ak@linux.intel.com -- Speaking for myself only
next prev parent reply other threads:[~2015-10-21 21:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-21 20:16 [PATCH 1/3] x86, perf: Use a new PMU ack sequence Andi Kleen
2015-10-21 20:16 ` [PATCH 2/3] x86, perf: Factor out BTS enable/disable functions Andi Kleen
2015-10-21 20:16 ` [PATCH 3/3] perf, x86: Use counter freezing with Arch Perfmon v4 Andi Kleen
2015-10-21 20:36 ` [PATCH 1/3] x86, perf: Use a new PMU ack sequence Peter Zijlstra
2015-10-21 21:46 ` Andi Kleen [this message]
2015-10-22 9:25 ` Ingo Molnar
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