fs/ceph/quota.c

123  * This function will try to lookup a realm inode which isn't visible in the
132 					     struct ceph_snap_realm *realm)
138 	qri = find_quotarealm_inode(mdsc, realm->ino);
163 		in = ceph_lookup_inode(sb, realm->ino);
167 		doutc(cl, "Can't lookup inode %llx (err: %ld)\n", realm->ino,
206  * returned realm.
220 	struct ceph_snap_realm *realm, *next;
230 	realm = ceph_inode(inode)->i_snap_realm;
231 	if (realm)
232 		ceph_get_snap_realm(mdsc, realm);
237 	while (realm) {
240 		spin_lock(&realm->inodes_with_caps_lock);
241 		has_inode = realm->inode;
242 		in = has_inode ? igrab(realm->inode) : NULL;
243 		spin_unlock(&realm->inodes_with_caps_lock);
248 			in = lookup_quotarealm_inode(mdsc, inode->i_sb, realm);
252 			ceph_put_snap_realm(mdsc, realm);
262 		next = realm->parent;
265 				*realmp = realm;
270 		ceph_put_snap_realm(mdsc, realm);
271 		realm = next;
273 	if (realm)
274 		ceph_put_snap_realm(mdsc, realm);
322  * realm, it will execute quota check operation defined by the 'op' parameter.
332 	struct ceph_snap_realm *realm, *next;
342 	realm = ceph_inode(inode)->i_snap_realm;
343 	if (realm)
344 		ceph_get_snap_realm(mdsc, realm);
349 	while (realm) {
352 		spin_lock(&realm->inodes_with_caps_lock);
353 		has_inode = realm->inode;
354 		in = has_inode ? igrab(realm->inode) : NULL;
355 		spin_unlock(&realm->inodes_with_caps_lock);
360 			in = lookup_quotarealm_inode(mdsc, inode->i_sb, realm);
364 			ceph_put_snap_realm(mdsc, realm);
403 		next = realm->parent;
407 		ceph_put_snap_realm(mdsc, realm);
408 		realm = next;
410 	if (realm)
411 		ceph_put_snap_realm(mdsc, realm);
494 	struct ceph_snap_realm *realm;
501 			&realm, true);
503 	if (!realm)
506 	spin_lock(&realm->inodes_with_caps_lock);
507 	in = realm->inode ? igrab(realm->inode) : NULL;
508 	spin_unlock(&realm->inodes_with_caps_lock);
543 	ceph_put_snap_realm(mdsc, realm);