62 #define shm_ids(ns)	((ns)->ids[IPC_SHM_IDS])  macro
82 	ipc_init_ids(&shm_ids(ns));  in shm_init_ns()
106 	free_ipcs(ns, &shm_ids(ns), do_shm_rmid);  in shm_exit_ns()
132 	struct kern_ipc_perm *ipcp = ipc_obtain_object(&shm_ids(ns), id);  in shm_obtain_object()
142 	struct kern_ipc_perm *ipcp = ipc_obtain_object_check(&shm_ids(ns), id);  in shm_obtain_object_check()
156 	struct kern_ipc_perm *ipcp = ipc_lock(&shm_ids(ns), id);  in shm_lock()
186 	ipc_rmid(&shm_ids(ns), &s->shm_perm);  in shm_rmid()
276 	down_write(&shm_ids(ns).rwsem);  in shm_close()
295 	up_write(&shm_ids(ns).rwsem);  in shm_close()
323 	down_write(&shm_ids(ns).rwsem);  in shm_destroy_orphaned()
324 	if (shm_ids(ns).in_use)  in shm_destroy_orphaned()
325 		idr_for_each(&shm_ids(ns).ipcs_idr, &shm_try_destroy_orphaned, ns);  in shm_destroy_orphaned()
326 	up_write(&shm_ids(ns).rwsem);  in shm_destroy_orphaned()
344 		down_read(&shm_ids(ns).rwsem);  in exit_shm()
352 		up_read(&shm_ids(ns).rwsem);  in exit_shm()
361 	down_write(&shm_ids(ns).rwsem);  in exit_shm()
373 	up_write(&shm_ids(ns).rwsem);  in exit_shm()
596 	id = ipc_addid(&shm_ids(ns), &shp->shm_perm, ns->shm_ctlmni);  in newseg()
668 	return ipcget(ns, &shm_ids(ns), &shm_ops, &shm_params);  in SYSCALL_DEFINE3()
789 	in_use = shm_ids(ns).in_use;  in shm_get_stat()
795 		ipc = idr_find(&shm_ids(ns).ipcs_idr, next_id);  in shm_get_stat()
824 	down_write(&shm_ids(ns).rwsem);  in shmctl_down()
827 	ipcp = ipcctl_pre_down_nolock(ns, &shm_ids(ns), shmid, cmd,  in shmctl_down()
863 	up_write(&shm_ids(ns).rwsem);  in shmctl_down()
894 		down_read(&shm_ids(ns).rwsem);  in shmctl_nolock()
895 		err = ipc_get_maxid(&shm_ids(ns));  in shmctl_nolock()
896 		up_read(&shm_ids(ns).rwsem);  in shmctl_nolock()
907 		down_read(&shm_ids(ns).rwsem);  in shmctl_nolock()
908 		shm_info.used_ids = shm_ids(ns).in_use;  in shmctl_nolock()
913 		err = ipc_get_maxid(&shm_ids(ns));  in shmctl_nolock()
914 		up_read(&shm_ids(ns).rwsem);  in shmctl_nolock()
1227 	down_write(&shm_ids(ns).rwsem);  in do_shmat()
1234 	up_write(&shm_ids(ns).rwsem);  in do_shmat()