590 static int shmctl_down(struct ipc_namespace *ns, int shmid, int cmd,  in shmctl_down()  argument
603 	ipcp = ipcctl_pre_down(&shm_ids(ns), shmid, cmd, &shmid64.shm_perm, 0);  in shmctl_down()
630 SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
636 	if (cmd < 0 || shmid < 0) {  in SYSCALL_DEFINE3()
702 			shp = shm_lock(ns, shmid);  in SYSCALL_DEFINE3()
709 			shp = shm_lock_check(ns, shmid);  in SYSCALL_DEFINE3()
745 		shp = shm_lock_check(ns, shmid);  in SYSCALL_DEFINE3()
787 		err = shmctl_down(ns, shmid, cmd, buf, version);  in SYSCALL_DEFINE3()
806 long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr)  in do_shmat()  argument
823 	if (shmid < 0)  in do_shmat()
862 	shp = shm_lock_check(ns, shmid);  in do_shmat()
924 	shp = shm_lock(ns, shmid);  in do_shmat()
948 SYSCALL_DEFINE3(shmat, int, shmid, char __user *, shmaddr, int, shmflg)  in SYSCALL_DEFINE3()  argument
953 	err = do_shmat(shmid, shmaddr, shmflg, &ret);  in SYSCALL_DEFINE3()