[S390] Do not clobber personality flags on exec

Analog to git commit 59e4c3a2fe9cb1681bb2cff508ff79466f7585ba
do not clear the additional personality flags on exec. We
need to inherit the personality bits in PER_MASK across exec.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 64b61bf72e93..547f1a6a35d4 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -188,7 +188,8 @@ extern char elf_platform[];
 #define SET_PERSONALITY(ex)                                     \
 do {                                                            \
         if (personality(current->personality) != PER_LINUX32)   \
-                set_personality(PER_LINUX);                     \
+                set_personality(PER_LINUX |                     \
+                        (current->personality & ~PER_MASK));    \
         if ((ex).e_ident[EI_CLASS] == ELFCLASS32)               \
                 set_thread_flag(TIF_31BIT);                     \
         else                                                    \