From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 28 Aug 2012 08:02:08 +0000 (+0200)
Subject: s390/32: Don't clobber personality flags on exec
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=768fd0737f4533635ea351566dff98fd4912b0d8;p=~shefty%2Frdma-dev.git

s390/32: Don't clobber personality flags on exec

In native 32 bit mode the personality flags were not correctly inherited.
This is the s390 version of 59e4c3a2 "powerpc/32: Don't clobber personality
flags on exec".

Reported-by: Mike Frysinger <vapier@gentoo.org>
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/elf.h b/arch/s390/include/asm/elf.h
index 32e8449640f..9b94a160fe7 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -180,7 +180,8 @@ extern char elf_platform[];
 #define ELF_PLATFORM (elf_platform)
 
 #ifndef CONFIG_64BIT
-#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
+#define SET_PERSONALITY(ex) \
+	set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
 #else /* CONFIG_64BIT */
 #define SET_PERSONALITY(ex)					\
 do {								\