linux-kernel - Re: [PATCH] x86, MCE: Clean get_cpu_xxx with this_cpu

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Date:	Tue, 15 Apr 2014 11:03:48 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	"Chen, Gong" <gong.chen@...ux.intel.com>
Cc:	hpa@...or.com, tony.luck@...el.com, tglx@...utronix.de,
	linux-kernel@...r.kernel.org, linux-tip-commits@...r.kernel.org
Subject: Re: [PATCH] x86, MCE: Clean get_cpu_xxx with this_cpu_xxx


* Chen, Gong <gong.chen@...ux.intel.com> wrote:

> This is a cleanup patch suggested by Peter. Use new
> this_cpu_xxx to improve operation speed. Meanwhile,
> it fixes an issue introduced in commit 27f6c573e0. I
> forget to execute put_cpu_var operation after get_cpu_var.

What 'issue'? Is it a bug? If yes, what are the symptoms to the user?

Also, fixes must be separate from cleanups.

Thanks,

	Ingo
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