[PATCH] powerpc/ppc64: remove __volatile__ in get_current()

[James Yang]

Uses of get_current() that normally get optimized away still result in
a load instruction of the current pointer in 64-bit because the inline
asm uses __volatile__.  This patch removes __volatile__ so that nop-ed
uses of get_current() don't actually result in a load of the pointer.

Signed-off-by: James Yang <James.Yang at freescale.com>
---
 arch/powerpc/include/asm/current.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/include/asm/current.h b/arch/powerpc/include/asm/current.h
index e2c7f06..bb250c8 100644
--- a/arch/powerpc/include/asm/current.h
+++ b/arch/powerpc/include/asm/current.h
@@ -19,7 +19,7 @@ static inline struct task_struct *get_current(void)
 {
 	struct task_struct *task;
 
-	__asm__ __volatile__("ld %0,%1(13)"
+	__asm__ ("ld %0,%1(13)"
 	: "=r" (task)
 	: "i" (offsetof(struct paca_struct, __current)));
 
-- 
1.7.0.4