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()
910 	err = security_shm_shmctl(&shp->shm_perm, cmd);  in shmctl_down()
914 	switch (cmd) {  in shmctl_down()
981 			int cmd, struct shmid64_ds *tbuf)  in shmctl_stat()  argument
989 	if (cmd == SHM_STAT || cmd == SHM_STAT_ANY) {  in shmctl_stat()
1010 	if (cmd == SHM_STAT_ANY)  in shmctl_stat()
1018 	err = security_shm_shmctl(&shp->shm_perm, cmd);  in shmctl_stat()
1044 	if (cmd == IPC_STAT) {  in shmctl_stat()
1064 static int shmctl_do_lock(struct ipc_namespace *ns, int shmid, int cmd)  in shmctl_do_lock()  argument
1078 	err = security_shm_shmctl(&shp->shm_perm, cmd);  in shmctl_do_lock()
1098 		if (cmd == SHM_LOCK && !rlimit(RLIMIT_MEMLOCK)) {  in shmctl_do_lock()
1108 	if (cmd == SHM_LOCK) {  in shmctl_do_lock()
1140 static long ksys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf, int version)  in ksys_shmctl()  argument
1146 	if (cmd < 0 || shmid < 0)  in ksys_shmctl()
1151 	switch (cmd) {  in ksys_shmctl()
1173 		err = shmctl_stat(ns, shmid, cmd, &sem64);  in ksys_shmctl()
1185 		return shmctl_down(ns, shmid, cmd, &sem64);  in ksys_shmctl()
1188 		return shmctl_do_lock(ns, shmid, cmd);  in ksys_shmctl()
1194 SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
1196 	return ksys_shmctl(shmid, cmd, buf, IPC_64);  in SYSCALL_DEFINE3()
1200 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf)  in ksys_old_shmctl()  argument
1202 	int version = ipc_parse_version(&cmd);  in ksys_old_shmctl()
1204 	return ksys_shmctl(shmid, cmd, buf, version);  in ksys_old_shmctl()
1207 SYSCALL_DEFINE3(old_shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
1209 	return ksys_old_shmctl(shmid, cmd, buf);  in SYSCALL_DEFINE3()
1335 long compat_ksys_shmctl(int shmid, int cmd, void __user *uptr, int version)  in compat_ksys_shmctl()  argument
1343 	if (cmd < 0 || shmid < 0)  in compat_ksys_shmctl()
1346 	switch (cmd) {  in compat_ksys_shmctl()
1368 		err = shmctl_stat(ns, shmid, cmd, &sem64);  in compat_ksys_shmctl()
1380 		return shmctl_down(ns, shmid, cmd, &sem64);  in compat_ksys_shmctl()
1383 		return shmctl_do_lock(ns, shmid, cmd);  in compat_ksys_shmctl()
1391 COMPAT_SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, void __user *, uptr)  in COMPAT_SYSCALL_DEFINE3()  argument
1393 	return compat_ksys_shmctl(shmid, cmd, uptr, IPC_64);  in COMPAT_SYSCALL_DEFINE3()
1397 long compat_ksys_old_shmctl(int shmid, int cmd, void __user *uptr)  in compat_ksys_old_shmctl()  argument
1399 	int version = compat_ipc_parse_version(&cmd);  in compat_ksys_old_shmctl()
1401 	return compat_ksys_shmctl(shmid, cmd, uptr, version);  in compat_ksys_old_shmctl()
1404 COMPAT_SYSCALL_DEFINE3(old_shmctl, int, shmid, int, cmd, void __user *, uptr)  in COMPAT_SYSCALL_DEFINE3()  argument
1406 	return compat_ksys_old_shmctl(shmid, cmd, uptr);  in COMPAT_SYSCALL_DEFINE3()