linux-kernel - Re: [PATCH 2/2] x86, MCE: Cleanup macro __get_cpu

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Message-ID: <534C0B6C.8070109@zytor.com>
Date:	Mon, 14 Apr 2014 09:23:08 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Chen, Gong" <gong.chen@...ux.intel.com>, tony.luck@...el.com
CC:	tglx@...utronix.de, mingo@...nel.org, linux-kernel@...r.kernel.org,
	linux-tip-commits@...r.kernel.org
Subject: Re: [PATCH 2/2] x86, MCE: Cleanup macro __get_cpu_var

Please read Documentation/this_cpu_ops.txt for reference for how to use
these functions.  However, you want to avoid forming a pointer if you
can; it is relatively expensive to do so.

	-hpa

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