From: Ingo Molnar <mingo@kernel.org>
Date: Tue, 5 May 2015 08:54:04 +0000 (+0200)
Subject: x86/fpu: Make check_fpu() init ordering independent
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~203^2~130
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=71eb3c6d155c54fb74d2f95166162296a8f9af12;p=pandora-kernel.git

x86/fpu: Make check_fpu() init ordering independent

check_fpu() currently relies on being called early in the init sequence,
when CR0::TS has not been set up yet.

Save/restore CR0::TS across this function, to make it invariant to
init ordering. This way we'll be able to move the generic FPU setup
routines earlier in the init sequence.

Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
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>
---

Reading git-diff-tree failed