891 static int shmctl_down(struct ipc_namespace *ns, int shmid, int cmd,  in shmctl_down()  argument
901 	ipcp = ipcctl_obtain_check(ns, &shm_ids(ns), shmid, cmd,  in shmctl_down()
980 static int shmctl_stat(struct ipc_namespace *ns, int shmid,  in shmctl_stat()  argument
990 		shp = shm_obtain_object(ns, shmid);  in shmctl_stat()
996 		shp = shm_obtain_object_check(ns, shmid);  in shmctl_stat()
1064 static int shmctl_do_lock(struct ipc_namespace *ns, int shmid, int cmd)  in shmctl_do_lock()  argument
1071 	shp = shm_obtain_object_check(ns, shmid);  in shmctl_do_lock()
1140 long ksys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf)  in ksys_shmctl()  argument
1146 	if (cmd < 0 || shmid < 0)  in ksys_shmctl()
1174 		err = shmctl_stat(ns, shmid, cmd, &sem64);  in ksys_shmctl()
1186 		return shmctl_down(ns, shmid, cmd, &sem64);  in ksys_shmctl()
1189 		return shmctl_do_lock(ns, shmid, cmd);  in ksys_shmctl()
1195 SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
1197 	return ksys_shmctl(shmid, cmd, buf);  in SYSCALL_DEFINE3()
1322 long compat_ksys_shmctl(int shmid, int cmd, void __user *uptr)  in compat_ksys_shmctl()  argument
1331 	if (cmd < 0 || shmid < 0)  in compat_ksys_shmctl()
1356 		err = shmctl_stat(ns, shmid, cmd, &sem64);  in compat_ksys_shmctl()
1368 		return shmctl_down(ns, shmid, cmd, &sem64);  in compat_ksys_shmctl()
1371 		return shmctl_do_lock(ns, shmid, cmd);  in compat_ksys_shmctl()
1379 COMPAT_SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, void __user *, uptr)  in COMPAT_SYSCALL_DEFINE3()  argument
1381 	return compat_ksys_shmctl(shmid, cmd, uptr);  in COMPAT_SYSCALL_DEFINE3()
1392 long do_shmat(int shmid, char __user *shmaddr, int shmflg,  in do_shmat()  argument
1409 	if (shmid < 0)  in do_shmat()
1455 	shp = shm_obtain_object_check(ns, shmid);  in do_shmat()
1550 	shp = shm_lock(ns, shmid);  in do_shmat()
1565 SYSCALL_DEFINE3(shmat, int, shmid, char __user *, shmaddr, int, shmflg)  in SYSCALL_DEFINE3()  argument
1570 	err = do_shmat(shmid, shmaddr, shmflg, &ret, SHMLBA);  in SYSCALL_DEFINE3()
1583 COMPAT_SYSCALL_DEFINE3(shmat, int, shmid, compat_uptr_t, shmaddr, int, shmflg)  in COMPAT_SYSCALL_DEFINE3()  argument
1588 	err = do_shmat(shmid, compat_ptr(shmaddr), shmflg, &ret, COMPAT_SHMLBA);  in COMPAT_SYSCALL_DEFINE3()