linux-kernel - [PATCH] Use correct macros in raid code, not raw asm

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Date:	Fri, 29 Dec 2006 10:34:21 +1100
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Andi Kleen <ak@....de>, Andrew Morton <akpm@...l.org>,
	Linus Torvalds <torvalds@...l.org>,
	Ingo Molnar <mingo@...e.hu>, Neil Brown <neilb@...e.de>
Cc:	lkml - Kernel Mailing List <linux-kernel@...r.kernel.org>,
	virtualization <virtualization@...ts.osdl.org>
Subject: [PATCH] Use correct macros in raid code, not raw asm

This make sure it's paravirtualized correctly when CONFIG_PARAVIRT=y.

Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>

diff -r 4ff048622391 drivers/md/raid6x86.h
--- a/drivers/md/raid6x86.h	Thu Dec 28 16:52:54 2006 +1100
+++ b/drivers/md/raid6x86.h	Fri Dec 29 10:09:38 2006 +1100
@@ -75,13 +75,14 @@ static inline unsigned long raid6_get_fp
 	unsigned long cr0;
 
 	preempt_disable();
-	asm volatile("mov %%cr0,%0 ; clts" : "=r" (cr0));
+	cr0 = read_cr0();
+	clts();
 	return cr0;
 }
 
 static inline void raid6_put_fpu(unsigned long cr0)
 {
-	asm volatile("mov %0,%%cr0" : : "r" (cr0));
+	write_cr0(cr0);
 	preempt_enable();
 }
 


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