107 void afs_clear_permits(struct afs_vnode *vnode)  in afs_clear_permits()  argument
111 	spin_lock(&vnode->lock);  in afs_clear_permits()
112 	permits = rcu_dereference_protected(vnode->permit_cache,  in afs_clear_permits()
113 					    lockdep_is_held(&vnode->lock));  in afs_clear_permits()
114 	RCU_INIT_POINTER(vnode->permit_cache, NULL);  in afs_clear_permits()
115 	spin_unlock(&vnode->lock);  in afs_clear_permits()
143 void afs_cache_permit(struct afs_vnode *vnode, struct key *key,  in afs_cache_permit()  argument
153 	       vnode->fid.vid, vnode->fid.vnode, key_serial(key), caller_access);  in afs_cache_permit()
160 	permits = rcu_dereference(vnode->permit_cache);  in afs_cache_permit()
173 				if (afs_cb_is_broken(cb_break, vnode,  in afs_cache_permit()
174 						     rcu_dereference(vnode->cb_interest))) {  in afs_cache_permit()
192 			spin_lock(&vnode->lock);  in afs_cache_permit()
193 			if (permits != rcu_access_pointer(vnode->permit_cache))  in afs_cache_permit()
195 			RCU_INIT_POINTER(vnode->permit_cache, NULL);  in afs_cache_permit()
196 			spin_unlock(&vnode->lock);  in afs_cache_permit()
204 	if (afs_cb_is_broken(cb_break, vnode, rcu_dereference(vnode->cb_interest)))  in afs_cache_permit()
282 	spin_lock(&vnode->lock);  in afs_cache_permit()
283 	zap = rcu_access_pointer(vnode->permit_cache);  in afs_cache_permit()
284 	if (!afs_cb_is_broken(cb_break, vnode, rcu_dereference(vnode->cb_interest)) &&  in afs_cache_permit()
286 		rcu_assign_pointer(vnode->permit_cache, replacement);  in afs_cache_permit()
289 	spin_unlock(&vnode->lock);  in afs_cache_permit()
297 	spin_unlock(&vnode->lock);  in afs_cache_permit()
306 static bool afs_check_permit_rcu(struct afs_vnode *vnode, struct key *key,  in afs_check_permit_rcu()  argument
313 	       vnode->fid.vid, vnode->fid.vnode, key_serial(key));  in afs_check_permit_rcu()
316 	if (key == vnode->volume->cell->anonymous_key) {  in afs_check_permit_rcu()
317 		*_access = vnode->status.anon_access;  in afs_check_permit_rcu()
322 	permits = rcu_dereference(vnode->permit_cache);  in afs_check_permit_rcu()
345 int afs_check_permit(struct afs_vnode *vnode, struct key *key,  in afs_check_permit()  argument
353 	       vnode->fid.vid, vnode->fid.vnode, key_serial(key));  in afs_check_permit()
356 	if (key == vnode->volume->cell->anonymous_key) {  in afs_check_permit()
358 		*_access = vnode->status.anon_access;  in afs_check_permit()
362 		permits = rcu_dereference(vnode->permit_cache);  in afs_check_permit()
384 		ret = afs_fetch_status(vnode, key, false, _access);  in afs_check_permit()
403 	struct afs_vnode *vnode = AFS_FS_I(inode);  in afs_permission()  local
409 	       vnode->fid.vid, vnode->fid.vnode, vnode->flags, mask);  in afs_permission()
412 		key = afs_request_key_rcu(vnode->volume->cell);  in afs_permission()
417 		if (!afs_check_validity(vnode) ||  in afs_permission()
418 		    !afs_check_permit_rcu(vnode, key, &access))  in afs_permission()
421 		key = afs_request_key(vnode->volume->cell);  in afs_permission()
427 		ret = afs_validate(vnode, key);  in afs_permission()
432 		ret = afs_check_permit(vnode, key, &access);  in afs_permission()