From cd627407ff9cfe1433a22436c1fa6827d56051c1 Mon Sep 17 00:00:00 2001
From: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Date: Fri, 21 Sep 2012 10:57:31 +1000
Subject: [PATCH] thp, s390: add missing earlyclobber to inline assembly

The constraints of the rrbm inline assembly are missing two
earlyclobber operands, which can lead to an addressing exception
depending on compiler register allocation decisions.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 arch/s390/include/asm/pgtable.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 2fdab82e70d9..ed14fc2db6e0 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1296,7 +1296,8 @@ static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
 			"	ogr	%1,%0\n"
 			"	la	%3,0(%4,%3)\n"
 			"	brct	%2,0b\n"
-			: "=d" (tmp), "+d" (rc), "+d" (counter), "+a" (pmd_addr)
+			: "=&d" (tmp), "+&d" (rc), "+d" (counter),
+			  "+a" (pmd_addr)
 			: "a" (64 * 4096UL) : "cc");
 		rc = !!rc;
 	} else {
-- 
2.39.5