89 static void do_shm_rmid(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)  in do_shm_rmid()  argument
92 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in do_shm_rmid()
132 	struct kern_ipc_perm *ipcp = ipc_obtain_object_idr(&shm_ids(ns), id);  in shm_obtain_object()  local
134 	if (IS_ERR(ipcp))  in shm_obtain_object()
135 		return ERR_CAST(ipcp);  in shm_obtain_object()
137 	return container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_obtain_object()
142 	struct kern_ipc_perm *ipcp = ipc_obtain_object_check(&shm_ids(ns), id);  in shm_obtain_object_check()  local
144 	if (IS_ERR(ipcp))  in shm_obtain_object_check()
145 		return ERR_CAST(ipcp);  in shm_obtain_object_check()
147 	return container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_obtain_object_check()
156 	struct kern_ipc_perm *ipcp = ipc_lock(&shm_ids(ns), id);  in shm_lock()  local
163 	if (IS_ERR(ipcp))  in shm_lock()
164 		return (void *)ipcp;  in shm_lock()
165 	return container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_lock()
168 static inline void shm_lock_by_ptr(struct shmid_kernel *ipcp)  in shm_lock_by_ptr()  argument
171 	ipc_lock_object(&ipcp->shm_perm);  in shm_lock_by_ptr()
302 	struct kern_ipc_perm *ipcp = p;  in shm_try_destroy_orphaned()  local
303 	struct shmid_kernel *shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_try_destroy_orphaned()
629 static inline int shm_security(struct kern_ipc_perm *ipcp, int shmflg)  in shm_security()  argument
633 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_security()
640 static inline int shm_more_checks(struct kern_ipc_perm *ipcp,  in shm_more_checks()  argument
645 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in shm_more_checks()
814 	struct kern_ipc_perm *ipcp;  in shmctl_down()  local
827 	ipcp = ipcctl_pre_down_nolock(ns, &shm_ids(ns), shmid, cmd,  in shmctl_down()
829 	if (IS_ERR(ipcp)) {  in shmctl_down()
830 		err = PTR_ERR(ipcp);  in shmctl_down()
834 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);  in shmctl_down()
844 		do_shm_rmid(ns, ipcp);  in shmctl_down()
848 		err = ipc_update_perm(&shmid64.shm_perm, ipcp);  in shmctl_down()