Message-ID: <5037F317.7020606@zytor.com>
Date: Fri, 24 Aug 2012 14:33:11 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Suresh Siddha <suresh.b.siddha@intel.com>
CC: mingo@kernel.org, torvalds@linux-foundation.org, andreas.herrmann3@amd.com,
        bp@amd64.org, robert.richter@amd.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/6] x86, fpu: cleanups, introduce non-lazy FPU restore
 for xsave
References: <1345842782-24175-1-git-send-email-suresh.b.siddha@intel.com>
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I have applied this to tip:x86/fpu, but I have also asked Suresh to
prepare a followon patch to decouple eager save from the existence of
the XSAVE instruction.  It seems pretty clear that eager save is a net
benefit in the presence of the XSAVEOPT, but it isn't as clear for only
having XSAVE, as far as I can tell.  Either way it would seem to be a
policy decision that is somewhat separate from the exact instruction.

	-hpa
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