merge compat sys_ipc instances

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 44 insertions, 0 deletions

diff --git a/ipc/compat.c b/ipc/compat.c
index 2547f29dcd1b..1da2e2eb9d70 100644
--- a/ipc/compat.c
+++ b/ipc/compat.c
@@ -368,6 +368,50 @@ long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
         return do_msgrcv(first, uptr, second, msgtyp, third,
                          compat_do_msg_fill);
 }
+
+COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
+        u32, third, compat_uptr_t, ptr, u32, fifth)
+{
+        int version;
+
+        version = call >> 16; /* hack for backward compatibility */
+        call &= 0xffff;
+
+        switch (call) {
+        case SEMOP:
+                /* struct sembuf is the same on 32 and 64bit :)) */
+                return sys_semtimedop(first, compat_ptr(ptr), second, NULL);
+        case SEMTIMEDOP:
+                return compat_sys_semtimedop(first, compat_ptr(ptr), second,
+                                                compat_ptr(fifth));
+        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, fifth, third,
+                                         version, compat_ptr(ptr));
+        case MSGGET:
+                return sys_msgget(first, second);
+        case MSGCTL:
+                return compat_sys_msgctl(first, second, compat_ptr(ptr));
+
+        case SHMAT:
+                return compat_sys_shmat(first, second, third, version,
+                                        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;
+}
 #else
 long compat_sys_semctl(int semid, int semnum, int cmd, int arg)
 {