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authorAl Viro <viro@zeniv.linux.org.uk>2013-01-21 23:15:25 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-03-03 23:00:27 -0500
commit56e41d3c5aa84d679eebdb3cb8a70b03c5fbd6c3 (patch)
tree62ede9a6cc31ed46d78632b65c4a66485fd5d1ad /arch/s390/kernel/compat_linux.c
parentd5dc77bfeeab0b03a32e3db5e31e2f64605634ab (diff)
downloadop-kernel-dev-56e41d3c5aa84d679eebdb3cb8a70b03c5fbd6c3.zip
op-kernel-dev-56e41d3c5aa84d679eebdb3cb8a70b03c5fbd6c3.tar.gz
merge compat sys_ipc instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/s390/kernel/compat_linux.c')
-rw-r--r--arch/s390/kernel/compat_linux.c44
1 files changed, 3 insertions, 41 deletions
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index fbd29c7..8b6e4f5 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -288,51 +288,13 @@ asmlinkage long sys32_getegid16(void)
return high2lowgid(from_kgid_munged(current_user_ns(), current_egid()));
}
-/*
- * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation.
- *
- * This is really horribly ugly.
- */
#ifdef CONFIG_SYSVIPC
-asmlinkage long sys32_ipc(u32 call, int first, int second, int third, u32 ptr)
+COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, unsigned long, second,
+ unsigned long, third, compat_uptr_t, ptr)
{
if (call >> 16) /* hack for backward compatibility */
return -EINVAL;
- switch (call) {
- case SEMTIMEDOP:
- return compat_sys_semtimedop(first, compat_ptr(ptr),
- second, compat_ptr(third));
- case SEMOP:
- /* struct sembuf is the same on 32 and 64bit :)) */
- return sys_semtimedop(first, compat_ptr(ptr),
- second, NULL);
- case SEMGET:
- return sys_semget(first, second, third);
- case SEMCTL:
- return compat_sys_semctl(first, second, third,
- compat_ptr(ptr));
- case MSGSND:
- return compat_sys_msgsnd(first, second, third,
- compat_ptr(ptr));
- case MSGRCV:
- return compat_sys_msgrcv(first, second, 0, third,
- 0, compat_ptr(ptr));
- case MSGGET:
- return sys_msgget((key_t) first, second);
- case MSGCTL:
- return compat_sys_msgctl(first, second, compat_ptr(ptr));
- case SHMAT:
- return compat_sys_shmat(first, second, third,
- 0, compat_ptr(ptr));
- case SHMDT:
- return sys_shmdt(compat_ptr(ptr));
- case SHMGET:
- return sys_shmget(first, (unsigned)second, third);
- case SHMCTL:
- return compat_sys_shmctl(first, second, compat_ptr(ptr));
- }
-
- return -ENOSYS;
+ return compat_sys_ipc(call, first, second, third, ptr, third);
}
#endif
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