122 static void do_shm_rmid(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)  in do_shm_rmid()  argument
126 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in do_shm_rmid()
168 	struct kern_ipc_perm *ipcp = ipc_obtain_object_idr(&shm_ids(ns), id);  in shm_obtain_object()  local
170 	if (IS_ERR(ipcp))  in shm_obtain_object()
171 		return ERR_CAST(ipcp);  in shm_obtain_object()
173 	return container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_obtain_object()
178 	struct kern_ipc_perm *ipcp = ipc_obtain_object_check(&shm_ids(ns), id);  in shm_obtain_object_check()  local
180 	if (IS_ERR(ipcp))  in shm_obtain_object_check()
181 		return ERR_CAST(ipcp);  in shm_obtain_object_check()
183 	return container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_obtain_object_check()
192 	struct kern_ipc_perm *ipcp;  in shm_lock()  local
195 	ipcp = ipc_obtain_object_idr(&shm_ids(ns), id);  in shm_lock()
196 	if (IS_ERR(ipcp))  in shm_lock()
199 	ipc_lock_object(ipcp);  in shm_lock()
206 	if (ipc_valid_object(ipcp)) {  in shm_lock()
208 		return container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_lock()
211 	ipc_unlock_object(ipcp);  in shm_lock()
212 	ipcp = ERR_PTR(-EIDRM);  in shm_lock()
219 	return ERR_CAST(ipcp);  in shm_lock()
222 static inline void shm_lock_by_ptr(struct shmid_kernel *ipcp)  in shm_lock_by_ptr()  argument
225 	ipc_lock_object(&ipcp->shm_perm);  in shm_lock_by_ptr()
411 	struct kern_ipc_perm *ipcp = p;  in shm_try_destroy_orphaned()  local
412 	struct shmid_kernel *shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_try_destroy_orphaned()
820 static int shm_more_checks(struct kern_ipc_perm *ipcp, struct ipc_params *params)  in shm_more_checks()  argument
824 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_more_checks()
999 	struct kern_ipc_perm *ipcp;  in shmctl_down()  local
1006 	ipcp = ipcctl_obtain_check(ns, &shm_ids(ns), shmid, cmd,  in shmctl_down()
1008 	if (IS_ERR(ipcp)) {  in shmctl_down()
1009 		err = PTR_ERR(ipcp);  in shmctl_down()
1013 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in shmctl_down()
1023 		do_shm_rmid(ns, ipcp);  in shmctl_down()
1027 		err = ipc_update_perm(&shmid64->shm_perm, ipcp);  in shmctl_down()
1847 	struct kern_ipc_perm *ipcp = it;  in sysvipc_shm_proc_show()  local
1851 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in sysvipc_shm_proc_show()