97 #define shm_ids(ns)	((ns)->ids[IPC_SHM_IDS])  macro
117 	ipc_init_ids(&shm_ids(ns));  in shm_init_ns()
134 		ipc_set_key_private(&shm_ids(ns), &shp->shm_perm);  in do_shm_rmid()
143 	free_ipcs(ns, &shm_ids(ns), do_shm_rmid);  in shm_exit_ns()
171 	struct kern_ipc_perm *ipcp = ipc_obtain_object_idr(&shm_ids(ns), id);  in shm_obtain_object()
181 	struct kern_ipc_perm *ipcp = ipc_obtain_object_check(&shm_ids(ns), id);  in shm_obtain_object_check()
198 	ipcp = ipc_obtain_object_idr(&shm_ids(ns), id);  in shm_lock()
277 	ipc_rmid(&shm_ids(s->ns), &s->shm_perm);  in shm_rmid()
376 	down_write(&shm_ids(ns).rwsem);  in __shm_close()
395 	up_write(&shm_ids(ns).rwsem);  in __shm_close()
435 	down_write(&shm_ids(ns).rwsem);  in shm_destroy_orphaned()
436 	if (shm_ids(ns).in_use) {  in shm_destroy_orphaned()
438 		idr_for_each(&shm_ids(ns).ipcs_idr, &shm_try_destroy_orphaned, ns);  in shm_destroy_orphaned()
441 	up_write(&shm_ids(ns).rwsem);  in shm_destroy_orphaned()
513 		down_write(&shm_ids(ns).rwsem);  in exit_shm()
535 		up_write(&shm_ids(ns).rwsem);  in exit_shm()
780 	error = ipc_addid(&shm_ids(ns), &shp->shm_perm, ns->shm_ctlmni);  in newseg()
844 	return ipcget(ns, &shm_ids(ns), &shm_ops, &shm_params);  in ksys_shmget()
971 	in_use = shm_ids(ns).in_use;  in shm_get_stat()
977 		ipc = idr_find(&shm_ids(ns).ipcs_idr, next_id);  in shm_get_stat()
1000 	down_write(&shm_ids(ns).rwsem);  in shmctl_down()
1003 	ipcp = ipcctl_obtain_check(ns, &shm_ids(ns), shmid, cmd,  in shmctl_down()
1039 	up_write(&shm_ids(ns).rwsem);  in shmctl_down()
1053 		down_read(&shm_ids(ns).rwsem);  in shmctl_ipc_info()
1054 		err = ipc_get_maxidx(&shm_ids(ns));  in shmctl_ipc_info()
1055 		up_read(&shm_ids(ns).rwsem);  in shmctl_ipc_info()
1068 		down_read(&shm_ids(ns).rwsem);  in shmctl_shm_info()
1069 		shm_info->used_ids = shm_ids(ns).in_use;  in shmctl_shm_info()
1074 		err = ipc_get_maxidx(&shm_ids(ns));  in shmctl_shm_info()
1075 		up_read(&shm_ids(ns).rwsem);  in shmctl_shm_info()
1676 	down_write(&shm_ids(ns).rwsem);  in do_shmat()
1684 	up_write(&shm_ids(ns).rwsem);  in do_shmat()