132 	struct ceph_inode_frag *frag;  in __get_or_create_frag()  local
138 		frag = rb_entry(parent, struct ceph_inode_frag, node);  in __get_or_create_frag()
139 		c = ceph_frag_compare(f, frag->frag);  in __get_or_create_frag()
145 			return frag;  in __get_or_create_frag()
148 	frag = kmalloc(sizeof(*frag), GFP_NOFS);  in __get_or_create_frag()
149 	if (!frag)  in __get_or_create_frag()
152 	frag->frag = f;  in __get_or_create_frag()
153 	frag->split_by = 0;  in __get_or_create_frag()
154 	frag->mds = -1;  in __get_or_create_frag()
155 	frag->ndist = 0;  in __get_or_create_frag()
157 	rb_link_node(&frag->node, parent, p);  in __get_or_create_frag()
158 	rb_insert_color(&frag->node, &ci->i_fragtree);  in __get_or_create_frag()
162 	return frag;  in __get_or_create_frag()
173 		struct ceph_inode_frag *frag =  in __ceph_find_frag()  local
175 		int c = ceph_frag_compare(f, frag->frag);  in __ceph_find_frag()
181 			return frag;  in __ceph_find_frag()
195 	struct ceph_inode_frag *frag;  in __ceph_choose_frag()  local
204 		frag = __ceph_find_frag(ci, t);  in __ceph_choose_frag()
205 		if (!frag)  in __ceph_choose_frag()
207 		if (frag->split_by == 0) {  in __ceph_choose_frag()
209 				memcpy(pfrag, frag, sizeof(*pfrag));  in __ceph_choose_frag()
216 		nway = 1 << frag->split_by;  in __ceph_choose_frag()
218 		     frag->split_by, nway);  in __ceph_choose_frag()
220 			n = ceph_frag_make_child(t, frag->split_by, i);  in __ceph_choose_frag()
252 	struct ceph_inode_frag *frag;  in ceph_fill_dirfrag()  local
253 	u32 id = le32_to_cpu(dirinfo->frag);  in ceph_fill_dirfrag()
271 		frag = __ceph_find_frag(ci, id);  in ceph_fill_dirfrag()
272 		if (!frag)  in ceph_fill_dirfrag()
274 		if (frag->split_by == 0) {  in ceph_fill_dirfrag()
278 			rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_dirfrag()
279 			kfree(frag);  in ceph_fill_dirfrag()
284 			frag->mds = -1;  in ceph_fill_dirfrag()
285 			frag->ndist = 0;  in ceph_fill_dirfrag()
292 	frag = __get_or_create_frag(ci, id);  in ceph_fill_dirfrag()
293 	if (IS_ERR(frag)) {  in ceph_fill_dirfrag()
297 		       ceph_vinop(inode), le32_to_cpu(dirinfo->frag));  in ceph_fill_dirfrag()
302 	frag->mds = mds;  in ceph_fill_dirfrag()
303 	frag->ndist = min_t(u32, ndist, CEPH_MAX_DIRFRAG_REP);  in ceph_fill_dirfrag()
304 	for (i = 0; i < frag->ndist; i++)  in ceph_fill_dirfrag()
305 		frag->dist[i] = le32_to_cpu(dirinfo->dist[i]);  in ceph_fill_dirfrag()
307 	     ceph_vinop(inode), frag->frag, frag->ndist);  in ceph_fill_dirfrag()
318 	return ceph_frag_compare(le32_to_cpu(ls->frag),  in frag_tree_split_cmp()
319 				 le32_to_cpu(rs->frag));  in frag_tree_split_cmp()
322 static bool is_frag_child(u32 f, struct ceph_inode_frag *frag)  in is_frag_child()  argument
324 	if (!frag)  in is_frag_child()
326 	if (ceph_frag_bits(f) != ceph_frag_bits(frag->frag) + frag->split_by)  in is_frag_child()
328 	return ceph_frag_contains_value(frag->frag, ceph_frag_value(f));  in is_frag_child()
336 	struct ceph_inode_frag *frag, *prev_frag = NULL;  in ceph_fill_fragtree()  local
348 		id = le32_to_cpu(fragtree->splits[i].frag);  in ceph_fill_fragtree()
353 		frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
354 		if (frag->frag != ceph_frag_make(0, 0) || rb_next(rb_node))  in ceph_fill_fragtree()
358 		id = le32_to_cpu(dirinfo->frag);  in ceph_fill_fragtree()
373 		id = le32_to_cpu(fragtree->splits[i].frag);  in ceph_fill_fragtree()
381 		frag = NULL;  in ceph_fill_fragtree()
383 			frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
384 			if (ceph_frag_compare(frag->frag, id) >= 0) {  in ceph_fill_fragtree()
385 				if (frag->frag != id)  in ceph_fill_fragtree()
386 					frag = NULL;  in ceph_fill_fragtree()
393 			if (frag->split_by > 0 ||  in ceph_fill_fragtree()
394 			    !is_frag_child(frag->frag, prev_frag)) {  in ceph_fill_fragtree()
395 				rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_fragtree()
396 				if (frag->split_by > 0)  in ceph_fill_fragtree()
398 				kfree(frag);  in ceph_fill_fragtree()
400 			frag = NULL;  in ceph_fill_fragtree()
402 		if (!frag) {  in ceph_fill_fragtree()
403 			frag = __get_or_create_frag(ci, id);  in ceph_fill_fragtree()
404 			if (IS_ERR(frag))  in ceph_fill_fragtree()
407 		if (frag->split_by == 0)  in ceph_fill_fragtree()
409 		frag->split_by = split_by;  in ceph_fill_fragtree()
410 		dout(" frag %x split by %d\n", frag->frag, frag->split_by);  in ceph_fill_fragtree()
411 		prev_frag = frag;  in ceph_fill_fragtree()
414 		frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
417 		if (frag->split_by > 0 ||  in ceph_fill_fragtree()
418 		    !is_frag_child(frag->frag, prev_frag)) {  in ceph_fill_fragtree()
419 			rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_fragtree()
420 			if (frag->split_by > 0)  in ceph_fill_fragtree()
422 			kfree(frag);  in ceph_fill_fragtree()
547 	struct ceph_inode_frag *frag;  in ceph_evict_inode()  local
587 		frag = rb_entry(n, struct ceph_inode_frag, node);  in ceph_evict_inode()
589 		kfree(frag);  in ceph_evict_inode()
1605 	u32 frag = le32_to_cpu(rhead->args.readdir.frag);  in ceph_readdir_prepopulate()  local
1627 	    le32_to_cpu(rinfo->dir_dir->frag) != frag) {  in ceph_readdir_prepopulate()
1629 		     frag, le32_to_cpu(rinfo->dir_dir->frag));  in ceph_readdir_prepopulate()
1630 		frag = le32_to_cpu(rinfo->dir_dir->frag);  in ceph_readdir_prepopulate()
1644 		if (ceph_frag_is_leftmost(frag) &&  in ceph_readdir_prepopulate()
1681 			rde->offset = ceph_make_fpos(frag, fpos_offset++, false);  in ceph_readdir_prepopulate()