From a752b53d9dcbae28a3a22b5577f0571acf53d5aa Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 22 Apr 2015 15:47:05 +0200
Subject: x86/fpu: Factor out fpu__copy()

Introduce fpu__copy() and use it in arch_dup_task_struct(),
thus moving another chunk of FPU logic to fpu/core.c.

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>
---
 arch/x86/include/asm/fpu-internal.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch/x86/include/asm/fpu-internal.h')

diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index f41170c6d376..6c1ceb7c3f9a 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -567,6 +567,7 @@ static inline unsigned short get_fpu_mxcsr(struct task_struct *tsk)
 extern void fpstate_cache_init(void);
 
 extern int fpstate_alloc(struct fpu *fpu);
+extern int fpu__copy(struct task_struct *dst, struct task_struct *src);
 
 static inline void fpstate_free(struct fpu *fpu)
 {
-- 
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