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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2017-12-14 13:28:00 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-01-23 07:36:45 +0100 |
| commit | 9797f14404fb21efbea62fe4cf8806f2fbdaaa23 (patch) | |
| tree | 194ccf9459bc0a01b6ab043d53e45a26a6bb5f53 /arch/s390/kernel | |
| parent | 0a12ed2c21c2e0909b3624fed9152f92ea5dfdc6 (diff) | |
| download | op-kernel-dev-9797f14404fb21efbea62fe4cf8806f2fbdaaa23.zip op-kernel-dev-9797f14404fb21efbea62fe4cf8806f2fbdaaa23.tar.gz | |
s390: remove bogus system call table entries
The 64 bit system call table contains three entries that come without
a matching NR_<name> entry in unistd.h. In fact all three of them do
not make sense on 64 bit, but only for compat processes.
llseek and mmap2 were specifically introduced for 32 bit / compat
processes. getrlimit is wired up twice, so that only the entry that
comes with a corresponding NR_getrlimit needs to be kept.
The other entries can be removed, since it seems very unlikely that
this will break user space.
Reported-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/syscalls.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index f7fc633..5e0cd16 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -85,7 +85,7 @@ SYSCALL(sys_sigsuspend,compat_sys_sigsuspend) SYSCALL(sys_sigpending,compat_sys_sigpending) SYSCALL(sys_sethostname,compat_sys_sethostname) SYSCALL(sys_setrlimit,compat_sys_setrlimit) /* 75 */ -SYSCALL(sys_getrlimit,compat_sys_old_getrlimit) +SYSCALL(sys_ni_syscall,compat_sys_old_getrlimit) SYSCALL(sys_getrusage,compat_sys_getrusage) SYSCALL(sys_gettimeofday,compat_sys_gettimeofday) SYSCALL(sys_settimeofday,compat_sys_settimeofday) @@ -149,7 +149,7 @@ SYSCALL(sys_s390_personality,sys_s390_personality) NI_SYSCALL /* for afs_syscall */ SYSCALL(sys_ni_syscall,compat_sys_s390_setfsuid16) /* old setfsuid16 syscall */ SYSCALL(sys_ni_syscall,compat_sys_s390_setfsgid16) /* old setfsgid16 syscall */ -SYSCALL(sys_llseek,compat_sys_llseek) /* 140 */ +SYSCALL(sys_ni_syscall,compat_sys_llseek) /* 140 */ SYSCALL(sys_getdents,compat_sys_getdents) SYSCALL(sys_select,compat_sys_select) SYSCALL(sys_flock,sys_flock) @@ -201,7 +201,7 @@ NI_SYSCALL /* streams1 */ NI_SYSCALL /* streams2 */ SYSCALL(sys_vfork,sys_vfork) /* 190 */ SYSCALL(sys_getrlimit,compat_sys_getrlimit) -SYSCALL(sys_mmap2,compat_sys_s390_mmap2) +SYSCALL(sys_ni_syscall,compat_sys_s390_mmap2) SYSCALL(sys_ni_syscall,compat_sys_s390_truncate64) SYSCALL(sys_ni_syscall,compat_sys_s390_ftruncate64) SYSCALL(sys_ni_syscall,compat_sys_s390_stat64) /* 195 */ |
