From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 25 Oct 2010 14:10:19 +0000 (+0200)
Subject: [S390] switch_to: get rid of prev == next check
X-Git-Tag: v3.0~3030^2~35
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=189b93d00fd6f71b013ad472fd72c0f043b160a9;p=platform%2Fkernel%2Flinux-amlogic.git

[S390] switch_to: get rid of prev == next check

schedule() makes sure that prev != next before calling switch_to().
Therefore remove the redundant check.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index c35d0a3..3c079dd 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -86,8 +86,6 @@ static inline void restore_access_regs(unsigned int *acrs)
 }
 
 #define switch_to(prev,next,last) do {					\
-	if (prev == next)						\
-		break;							\
 	if (prev->mm) {							\
 		save_fp_regs(&prev->thread.fp_regs);			\
 		save_access_regs(&prev->thread.acrs[0]);		\