128 	struct ceph_inode_frag *frag;  in __get_or_create_frag()  local
134 		frag = rb_entry(parent, struct ceph_inode_frag, node);  in __get_or_create_frag()
135 		c = ceph_frag_compare(f, frag->frag);  in __get_or_create_frag()
141 			return frag;  in __get_or_create_frag()
144 	frag = kmalloc(sizeof(*frag), GFP_NOFS);  in __get_or_create_frag()
145 	if (!frag)  in __get_or_create_frag()
148 	frag->frag = f;  in __get_or_create_frag()
149 	frag->split_by = 0;  in __get_or_create_frag()
150 	frag->mds = -1;  in __get_or_create_frag()
151 	frag->ndist = 0;  in __get_or_create_frag()
153 	rb_link_node(&frag->node, parent, p);  in __get_or_create_frag()
154 	rb_insert_color(&frag->node, &ci->i_fragtree);  in __get_or_create_frag()
158 	return frag;  in __get_or_create_frag()
169 		struct ceph_inode_frag *frag =  in __ceph_find_frag()  local
171 		int c = ceph_frag_compare(f, frag->frag);  in __ceph_find_frag()
177 			return frag;  in __ceph_find_frag()
191 	struct ceph_inode_frag *frag;  in __ceph_choose_frag()  local
200 		frag = __ceph_find_frag(ci, t);  in __ceph_choose_frag()
201 		if (!frag)  in __ceph_choose_frag()
203 		if (frag->split_by == 0) {  in __ceph_choose_frag()
205 				memcpy(pfrag, frag, sizeof(*pfrag));  in __ceph_choose_frag()
212 		nway = 1 << frag->split_by;  in __ceph_choose_frag()
214 		     frag->split_by, nway);  in __ceph_choose_frag()
216 			n = ceph_frag_make_child(t, frag->split_by, i);  in __ceph_choose_frag()
248 	struct ceph_inode_frag *frag;  in ceph_fill_dirfrag()  local
249 	u32 id = le32_to_cpu(dirinfo->frag);  in ceph_fill_dirfrag()
267 		frag = __ceph_find_frag(ci, id);  in ceph_fill_dirfrag()
268 		if (!frag)  in ceph_fill_dirfrag()
270 		if (frag->split_by == 0) {  in ceph_fill_dirfrag()
274 			rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_dirfrag()
275 			kfree(frag);  in ceph_fill_dirfrag()
280 			frag->mds = -1;  in ceph_fill_dirfrag()
281 			frag->ndist = 0;  in ceph_fill_dirfrag()
288 	frag = __get_or_create_frag(ci, id);  in ceph_fill_dirfrag()
289 	if (IS_ERR(frag)) {  in ceph_fill_dirfrag()
293 		       ceph_vinop(inode), le32_to_cpu(dirinfo->frag));  in ceph_fill_dirfrag()
298 	frag->mds = mds;  in ceph_fill_dirfrag()
299 	frag->ndist = min_t(u32, ndist, CEPH_MAX_DIRFRAG_REP);  in ceph_fill_dirfrag()
300 	for (i = 0; i < frag->ndist; i++)  in ceph_fill_dirfrag()
301 		frag->dist[i] = le32_to_cpu(dirinfo->dist[i]);  in ceph_fill_dirfrag()
303 	     ceph_vinop(inode), frag->frag, frag->ndist);  in ceph_fill_dirfrag()
314 	return ceph_frag_compare(le32_to_cpu(ls->frag),  in frag_tree_split_cmp()
315 				 le32_to_cpu(rs->frag));  in frag_tree_split_cmp()
318 static bool is_frag_child(u32 f, struct ceph_inode_frag *frag)  in is_frag_child()  argument
320 	if (!frag)  in is_frag_child()
322 	if (ceph_frag_bits(f) != ceph_frag_bits(frag->frag) + frag->split_by)  in is_frag_child()
324 	return ceph_frag_contains_value(frag->frag, ceph_frag_value(f));  in is_frag_child()
332 	struct ceph_inode_frag *frag, *prev_frag = NULL;  in ceph_fill_fragtree()  local
344 		id = le32_to_cpu(fragtree->splits[i].frag);  in ceph_fill_fragtree()
349 		frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
350 		if (frag->frag != ceph_frag_make(0, 0) || rb_next(rb_node))  in ceph_fill_fragtree()
354 		id = le32_to_cpu(dirinfo->frag);  in ceph_fill_fragtree()
369 		id = le32_to_cpu(fragtree->splits[i].frag);  in ceph_fill_fragtree()
377 		frag = NULL;  in ceph_fill_fragtree()
379 			frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
380 			if (ceph_frag_compare(frag->frag, id) >= 0) {  in ceph_fill_fragtree()
381 				if (frag->frag != id)  in ceph_fill_fragtree()
382 					frag = NULL;  in ceph_fill_fragtree()
389 			if (frag->split_by > 0 ||  in ceph_fill_fragtree()
390 			    !is_frag_child(frag->frag, prev_frag)) {  in ceph_fill_fragtree()
391 				rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_fragtree()
392 				if (frag->split_by > 0)  in ceph_fill_fragtree()
394 				kfree(frag);  in ceph_fill_fragtree()
396 			frag = NULL;  in ceph_fill_fragtree()
398 		if (!frag) {  in ceph_fill_fragtree()
399 			frag = __get_or_create_frag(ci, id);  in ceph_fill_fragtree()
400 			if (IS_ERR(frag))  in ceph_fill_fragtree()
403 		if (frag->split_by == 0)  in ceph_fill_fragtree()
405 		frag->split_by = split_by;  in ceph_fill_fragtree()
406 		dout(" frag %x split by %d\n", frag->frag, frag->split_by);  in ceph_fill_fragtree()
407 		prev_frag = frag;  in ceph_fill_fragtree()
410 		frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
413 		if (frag->split_by > 0 ||  in ceph_fill_fragtree()
414 		    !is_frag_child(frag->frag, prev_frag)) {  in ceph_fill_fragtree()
415 			rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_fragtree()
416 			if (frag->split_by > 0)  in ceph_fill_fragtree()
418 			kfree(frag);  in ceph_fill_fragtree()
545 	struct ceph_inode_frag *frag;  in ceph_evict_inode()  local
585 		frag = rb_entry(n, struct ceph_inode_frag, node);  in ceph_evict_inode()
587 		kfree(frag);  in ceph_evict_inode()
1601 	u32 frag = le32_to_cpu(rhead->args.readdir.frag);  in ceph_readdir_prepopulate()  local
1623 	    le32_to_cpu(rinfo->dir_dir->frag) != frag) {  in ceph_readdir_prepopulate()
1625 		     frag, le32_to_cpu(rinfo->dir_dir->frag));  in ceph_readdir_prepopulate()
1626 		frag = le32_to_cpu(rinfo->dir_dir->frag);  in ceph_readdir_prepopulate()
1640 		if (ceph_frag_is_leftmost(frag) &&  in ceph_readdir_prepopulate()
1677 			rde->offset = ceph_make_fpos(frag, fpos_offset++, false);  in ceph_readdir_prepopulate()