254 	struct ceph_inode_frag *frag;  in __get_or_create_frag()  local
260 		frag = rb_entry(parent, struct ceph_inode_frag, node);  in __get_or_create_frag()
261 		c = ceph_frag_compare(f, frag->frag);  in __get_or_create_frag()
267 			return frag;  in __get_or_create_frag()
270 	frag = kmalloc(sizeof(*frag), GFP_NOFS);  in __get_or_create_frag()
271 	if (!frag)  in __get_or_create_frag()
274 	frag->frag = f;  in __get_or_create_frag()
275 	frag->split_by = 0;  in __get_or_create_frag()
276 	frag->mds = -1;  in __get_or_create_frag()
277 	frag->ndist = 0;  in __get_or_create_frag()
279 	rb_link_node(&frag->node, parent, p);  in __get_or_create_frag()
280 	rb_insert_color(&frag->node, &ci->i_fragtree);  in __get_or_create_frag()
284 	return frag;  in __get_or_create_frag()
295 		struct ceph_inode_frag *frag =  in __ceph_find_frag()  local
297 		int c = ceph_frag_compare(f, frag->frag);  in __ceph_find_frag()
303 			return frag;  in __ceph_find_frag()
317 	struct ceph_inode_frag *frag;  in __ceph_choose_frag()  local
326 		frag = __ceph_find_frag(ci, t);  in __ceph_choose_frag()
327 		if (!frag)  in __ceph_choose_frag()
329 		if (frag->split_by == 0) {  in __ceph_choose_frag()
331 				memcpy(pfrag, frag, sizeof(*pfrag));  in __ceph_choose_frag()
338 		nway = 1 << frag->split_by;  in __ceph_choose_frag()
340 		     frag->split_by, nway);  in __ceph_choose_frag()
342 			n = ceph_frag_make_child(t, frag->split_by, i);  in __ceph_choose_frag()
374 	struct ceph_inode_frag *frag;  in ceph_fill_dirfrag()  local
375 	u32 id = le32_to_cpu(dirinfo->frag);  in ceph_fill_dirfrag()
393 		frag = __ceph_find_frag(ci, id);  in ceph_fill_dirfrag()
394 		if (!frag)  in ceph_fill_dirfrag()
396 		if (frag->split_by == 0) {  in ceph_fill_dirfrag()
400 			rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_dirfrag()
401 			kfree(frag);  in ceph_fill_dirfrag()
406 			frag->mds = -1;  in ceph_fill_dirfrag()
407 			frag->ndist = 0;  in ceph_fill_dirfrag()
414 	frag = __get_or_create_frag(ci, id);  in ceph_fill_dirfrag()
415 	if (IS_ERR(frag)) {  in ceph_fill_dirfrag()
419 		       ceph_vinop(inode), le32_to_cpu(dirinfo->frag));  in ceph_fill_dirfrag()
424 	frag->mds = mds;  in ceph_fill_dirfrag()
425 	frag->ndist = min_t(u32, ndist, CEPH_MAX_DIRFRAG_REP);  in ceph_fill_dirfrag()
426 	for (i = 0; i < frag->ndist; i++)  in ceph_fill_dirfrag()
427 		frag->dist[i] = le32_to_cpu(dirinfo->dist[i]);  in ceph_fill_dirfrag()
429 	     ceph_vinop(inode), frag->frag, frag->ndist);  in ceph_fill_dirfrag()
440 	return ceph_frag_compare(le32_to_cpu(ls->frag),  in frag_tree_split_cmp()
441 				 le32_to_cpu(rs->frag));  in frag_tree_split_cmp()
444 static bool is_frag_child(u32 f, struct ceph_inode_frag *frag)  in is_frag_child()  argument
446 	if (!frag)  in is_frag_child()
448 	if (ceph_frag_bits(f) != ceph_frag_bits(frag->frag) + frag->split_by)  in is_frag_child()
450 	return ceph_frag_contains_value(frag->frag, ceph_frag_value(f));  in is_frag_child()
458 	struct ceph_inode_frag *frag, *prev_frag = NULL;  in ceph_fill_fragtree()  local
470 		id = le32_to_cpu(fragtree->splits[i].frag);  in ceph_fill_fragtree()
475 		frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
476 		if (frag->frag != ceph_frag_make(0, 0) || rb_next(rb_node))  in ceph_fill_fragtree()
480 		id = le32_to_cpu(dirinfo->frag);  in ceph_fill_fragtree()
495 		id = le32_to_cpu(fragtree->splits[i].frag);  in ceph_fill_fragtree()
503 		frag = NULL;  in ceph_fill_fragtree()
505 			frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
506 			if (ceph_frag_compare(frag->frag, id) >= 0) {  in ceph_fill_fragtree()
507 				if (frag->frag != id)  in ceph_fill_fragtree()
508 					frag = NULL;  in ceph_fill_fragtree()
515 			if (frag->split_by > 0 ||  in ceph_fill_fragtree()
516 			    !is_frag_child(frag->frag, prev_frag)) {  in ceph_fill_fragtree()
517 				rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_fragtree()
518 				if (frag->split_by > 0)  in ceph_fill_fragtree()
520 				kfree(frag);  in ceph_fill_fragtree()
522 			frag = NULL;  in ceph_fill_fragtree()
524 		if (!frag) {  in ceph_fill_fragtree()
525 			frag = __get_or_create_frag(ci, id);  in ceph_fill_fragtree()
526 			if (IS_ERR(frag))  in ceph_fill_fragtree()
529 		if (frag->split_by == 0)  in ceph_fill_fragtree()
531 		frag->split_by = split_by;  in ceph_fill_fragtree()
532 		dout(" frag %x split by %d\n", frag->frag, frag->split_by);  in ceph_fill_fragtree()
533 		prev_frag = frag;  in ceph_fill_fragtree()
536 		frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
539 		if (frag->split_by > 0 ||  in ceph_fill_fragtree()
540 		    !is_frag_child(frag->frag, prev_frag)) {  in ceph_fill_fragtree()
541 			rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_fragtree()
542 			if (frag->split_by > 0)  in ceph_fill_fragtree()
544 			kfree(frag);  in ceph_fill_fragtree()
678 	struct ceph_inode_frag *frag;  in ceph_evict_inode()  local
714 		frag = rb_entry(n, struct ceph_inode_frag, node);  in ceph_evict_inode()
716 		kfree(frag);  in ceph_evict_inode()
1874 	u32 frag = le32_to_cpu(req->r_args.readdir.frag);  in ceph_readdir_prepopulate()  local
1896 	    le32_to_cpu(rinfo->dir_dir->frag) != frag) {  in ceph_readdir_prepopulate()
1898 		     frag, le32_to_cpu(rinfo->dir_dir->frag));  in ceph_readdir_prepopulate()
1899 		frag = le32_to_cpu(rinfo->dir_dir->frag);  in ceph_readdir_prepopulate()
1913 		if (ceph_frag_is_leftmost(frag) &&  in ceph_readdir_prepopulate()
1948 			rde->offset = ceph_make_fpos(frag, fpos_offset++, false);  in ceph_readdir_prepopulate()