15 	struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);  in ceph_adjust_quota_realms_count()  local
17 		atomic64_inc(&mdsc->quotarealms_count);  in ceph_adjust_quota_realms_count()
19 		atomic64_dec(&mdsc->quotarealms_count);  in ceph_adjust_quota_realms_count()
25 	struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(sb);  in ceph_has_realms_with_quotas()  local
28 	if (atomic64_read(&mdsc->quotarealms_count) > 0)  in ceph_has_realms_with_quotas()
37 void ceph_handle_quota(struct ceph_mds_client *mdsc,  in ceph_handle_quota()  argument
41 	struct super_block *sb = mdsc->fsc->sb;  in ceph_handle_quota()
82 find_quotarealm_inode(struct ceph_mds_client *mdsc, u64 ino)  in find_quotarealm_inode()  argument
87 	mutex_lock(&mdsc->quotarealms_inodes_mutex);  in find_quotarealm_inode()
88 	node = &(mdsc->quotarealms_inodes.rb_node);  in find_quotarealm_inode()
109 			rb_insert_color(&qri->node, &mdsc->quotarealms_inodes);  in find_quotarealm_inode()
113 	mutex_unlock(&mdsc->quotarealms_inodes_mutex);  in find_quotarealm_inode()
126 static struct inode *lookup_quotarealm_inode(struct ceph_mds_client *mdsc,  in lookup_quotarealm_inode()  argument
133 	qri = find_quotarealm_inode(mdsc, realm->ino);  in lookup_quotarealm_inode()
174 void ceph_cleanup_quotarealms_inodes(struct ceph_mds_client *mdsc)  in ceph_cleanup_quotarealms_inodes()  argument
183 	mutex_lock(&mdsc->quotarealms_inodes_mutex);  in ceph_cleanup_quotarealms_inodes()
184 	while (!RB_EMPTY_ROOT(&mdsc->quotarealms_inodes)) {  in ceph_cleanup_quotarealms_inodes()
185 		node = rb_first(&mdsc->quotarealms_inodes);  in ceph_cleanup_quotarealms_inodes()
187 		rb_erase(node, &mdsc->quotarealms_inodes);  in ceph_cleanup_quotarealms_inodes()
191 	mutex_unlock(&mdsc->quotarealms_inodes_mutex);  in ceph_cleanup_quotarealms_inodes()
209 static struct ceph_snap_realm *get_quota_realm(struct ceph_mds_client *mdsc,  in get_quota_realm()  argument
223 		ceph_get_snap_realm(mdsc, realm);  in get_quota_realm()
237 			up_read(&mdsc->snap_rwsem);  in get_quota_realm()
238 			in = lookup_quotarealm_inode(mdsc, inode->i_sb, realm);  in get_quota_realm()
239 			down_read(&mdsc->snap_rwsem);  in get_quota_realm()
242 			ceph_put_snap_realm(mdsc, realm);  in get_quota_realm()
257 		ceph_get_snap_realm(mdsc, next);  in get_quota_realm()
258 		ceph_put_snap_realm(mdsc, realm);  in get_quota_realm()
262 		ceph_put_snap_realm(mdsc, realm);  in get_quota_realm()
269 	struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(old->i_sb);  in ceph_quota_is_same_realm()  local
280 	down_read(&mdsc->snap_rwsem);  in ceph_quota_is_same_realm()
281 	old_realm = get_quota_realm(mdsc, old, true);  in ceph_quota_is_same_realm()
282 	new_realm = get_quota_realm(mdsc, new, false);  in ceph_quota_is_same_realm()
284 		up_read(&mdsc->snap_rwsem);  in ceph_quota_is_same_realm()
286 			ceph_put_snap_realm(mdsc, old_realm);  in ceph_quota_is_same_realm()
290 	up_read(&mdsc->snap_rwsem);  in ceph_quota_is_same_realm()
293 		ceph_put_snap_realm(mdsc, old_realm);  in ceph_quota_is_same_realm()
295 		ceph_put_snap_realm(mdsc, new_realm);  in ceph_quota_is_same_realm()
316 	struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);  in check_quota_exceeded()  local
326 	down_read(&mdsc->snap_rwsem);  in check_quota_exceeded()
330 		ceph_get_snap_realm(mdsc, realm);  in check_quota_exceeded()
344 			up_read(&mdsc->snap_rwsem);  in check_quota_exceeded()
345 			in = lookup_quotarealm_inode(mdsc, inode->i_sb, realm);  in check_quota_exceeded()
346 			down_read(&mdsc->snap_rwsem);  in check_quota_exceeded()
349 			ceph_put_snap_realm(mdsc, realm);  in check_quota_exceeded()
392 		ceph_get_snap_realm(mdsc, next);  in check_quota_exceeded()
393 		ceph_put_snap_realm(mdsc, realm);  in check_quota_exceeded()
397 		ceph_put_snap_realm(mdsc, realm);  in check_quota_exceeded()
398 	up_read(&mdsc->snap_rwsem);  in check_quota_exceeded()
478 	struct ceph_mds_client *mdsc = fsc->mdsc;  in ceph_quota_update_statfs()  local
485 	down_read(&mdsc->snap_rwsem);  in ceph_quota_update_statfs()
486 	realm = get_quota_realm(mdsc, d_inode(fsc->sb->s_root), true);  in ceph_quota_update_statfs()
487 	up_read(&mdsc->snap_rwsem);  in ceph_quota_update_statfs()
514 	ceph_put_snap_realm(mdsc, realm);  in ceph_quota_update_statfs()
533 int ceph_quota_check_rename(struct ceph_mds_client *mdsc,  in ceph_quota_check_rename()  argument