Commit 03e4c49f authored by Heiko Carstens's avatar Heiko Carstens

[S390] personality: fix personality loss on execve

Use the personality() macro to mask out all bits that are not
relevant for the personality type.
The personality field contains bits for other things as well,
so without masking out the not relevalent bits the comparison
won't do what is expected.
Reported-by: default avatarAndreas Krebbel <krebbel@linux.vnet.ibm.com>
Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
parent f3b8436a
......@@ -172,14 +172,14 @@ extern char elf_platform[];
#ifndef __s390x__
#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
#else /* __s390x__ */
#define SET_PERSONALITY(ex) \
do { \
if (current->personality != PER_LINUX32) \
set_personality(PER_LINUX); \
if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
set_thread_flag(TIF_31BIT); \
else \
clear_thread_flag(TIF_31BIT); \
#define SET_PERSONALITY(ex) \
do { \
if (personality(current->personality) != PER_LINUX32) \
set_personality(PER_LINUX); \
if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
set_thread_flag(TIF_31BIT); \
else \
clear_thread_flag(TIF_31BIT); \
} while (0)
#endif /* __s390x__ */
......
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