From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 27 Apr 2015 07:59:11 +0000 (+0200)
Subject: x86/fpu: Optimize fpu_copy()
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~203^2~105
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=68271c6ae726d7ab51e39b7342c838761bf0a25c;p=pandora-kernel.git

x86/fpu: Optimize fpu_copy()

Optimize fpu_copy() a bit by expanding the ->fpstate_active == 1
portion of fpu__save() into it.

( The main purpose of this change is to enable another, larger
  optimization that will be done in the next patch. )

Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

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