123 static void do_shm_rmid(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)  in do_shm_rmid()  argument
127 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in do_shm_rmid()
169 	struct kern_ipc_perm *ipcp = ipc_obtain_object_idr(&shm_ids(ns), id);  in shm_obtain_object()  local
171 	if (IS_ERR(ipcp))  in shm_obtain_object()
172 		return ERR_CAST(ipcp);  in shm_obtain_object()
174 	return container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_obtain_object()
179 	struct kern_ipc_perm *ipcp = ipc_obtain_object_check(&shm_ids(ns), id);  in shm_obtain_object_check()  local
181 	if (IS_ERR(ipcp))  in shm_obtain_object_check()
182 		return ERR_CAST(ipcp);  in shm_obtain_object_check()
184 	return container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_obtain_object_check()
193 	struct kern_ipc_perm *ipcp;  in shm_lock()  local
196 	ipcp = ipc_obtain_object_idr(&shm_ids(ns), id);  in shm_lock()
197 	if (IS_ERR(ipcp))  in shm_lock()
200 	ipc_lock_object(ipcp);  in shm_lock()
207 	if (ipc_valid_object(ipcp)) {  in shm_lock()
209 		return container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_lock()
212 	ipc_unlock_object(ipcp);  in shm_lock()
213 	ipcp = ERR_PTR(-EIDRM);  in shm_lock()
220 	return ERR_CAST(ipcp);  in shm_lock()
223 static inline void shm_lock_by_ptr(struct shmid_kernel *ipcp)  in shm_lock_by_ptr()  argument
226 	ipc_lock_object(&ipcp->shm_perm);  in shm_lock_by_ptr()
412 	struct kern_ipc_perm *ipcp = p;  in shm_try_destroy_orphaned()  local
413 	struct shmid_kernel *shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_try_destroy_orphaned()
812 static int shm_more_checks(struct kern_ipc_perm *ipcp, struct ipc_params *params)  in shm_more_checks()  argument
816 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_more_checks()
991 	struct kern_ipc_perm *ipcp;  in shmctl_down()  local
998 	ipcp = ipcctl_obtain_check(ns, &shm_ids(ns), shmid, cmd,  in shmctl_down()
1000 	if (IS_ERR(ipcp)) {  in shmctl_down()
1001 		err = PTR_ERR(ipcp);  in shmctl_down()
1005 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in shmctl_down()
1015 		do_shm_rmid(ns, ipcp);  in shmctl_down()
1019 		err = ipc_update_perm(&shmid64->shm_perm, ipcp);  in shmctl_down()
1839 	struct kern_ipc_perm *ipcp = it;  in sysvipc_shm_proc_show()  local
1843 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in sysvipc_shm_proc_show()