120 	struct ceph_inode_frag *frag;  in __get_or_create_frag()  local
126 		frag = rb_entry(parent, struct ceph_inode_frag, node);  in __get_or_create_frag()
127 		c = ceph_frag_compare(f, frag->frag);  in __get_or_create_frag()
133 			return frag;  in __get_or_create_frag()
136 	frag = kmalloc(sizeof(*frag), GFP_NOFS);  in __get_or_create_frag()
137 	if (!frag)  in __get_or_create_frag()
140 	frag->frag = f;  in __get_or_create_frag()
141 	frag->split_by = 0;  in __get_or_create_frag()
142 	frag->mds = -1;  in __get_or_create_frag()
143 	frag->ndist = 0;  in __get_or_create_frag()
145 	rb_link_node(&frag->node, parent, p);  in __get_or_create_frag()
146 	rb_insert_color(&frag->node, &ci->i_fragtree);  in __get_or_create_frag()
150 	return frag;  in __get_or_create_frag()
161 		struct ceph_inode_frag *frag =  in __ceph_find_frag()  local
163 		int c = ceph_frag_compare(f, frag->frag);  in __ceph_find_frag()
169 			return frag;  in __ceph_find_frag()
183 	struct ceph_inode_frag *frag;  in __ceph_choose_frag()  local
192 		frag = __ceph_find_frag(ci, t);  in __ceph_choose_frag()
193 		if (!frag)  in __ceph_choose_frag()
195 		if (frag->split_by == 0) {  in __ceph_choose_frag()
197 				memcpy(pfrag, frag, sizeof(*pfrag));  in __ceph_choose_frag()
204 		nway = 1 << frag->split_by;  in __ceph_choose_frag()
206 		     frag->split_by, nway);  in __ceph_choose_frag()
208 			n = ceph_frag_make_child(t, frag->split_by, i);  in __ceph_choose_frag()
240 	struct ceph_inode_frag *frag;  in ceph_fill_dirfrag()  local
241 	u32 id = le32_to_cpu(dirinfo->frag);  in ceph_fill_dirfrag()
259 		frag = __ceph_find_frag(ci, id);  in ceph_fill_dirfrag()
260 		if (!frag)  in ceph_fill_dirfrag()
262 		if (frag->split_by == 0) {  in ceph_fill_dirfrag()
266 			rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_dirfrag()
267 			kfree(frag);  in ceph_fill_dirfrag()
272 			frag->mds = -1;  in ceph_fill_dirfrag()
273 			frag->ndist = 0;  in ceph_fill_dirfrag()
280 	frag = __get_or_create_frag(ci, id);  in ceph_fill_dirfrag()
281 	if (IS_ERR(frag)) {  in ceph_fill_dirfrag()
285 		       ceph_vinop(inode), le32_to_cpu(dirinfo->frag));  in ceph_fill_dirfrag()
290 	frag->mds = mds;  in ceph_fill_dirfrag()
291 	frag->ndist = min_t(u32, ndist, CEPH_MAX_DIRFRAG_REP);  in ceph_fill_dirfrag()
292 	for (i = 0; i < frag->ndist; i++)  in ceph_fill_dirfrag()
293 		frag->dist[i] = le32_to_cpu(dirinfo->dist[i]);  in ceph_fill_dirfrag()
295 	     ceph_vinop(inode), frag->frag, frag->ndist);  in ceph_fill_dirfrag()
306 	return ceph_frag_compare(le32_to_cpu(ls->frag),  in frag_tree_split_cmp()
307 				 le32_to_cpu(rs->frag));  in frag_tree_split_cmp()
310 static bool is_frag_child(u32 f, struct ceph_inode_frag *frag)  in is_frag_child()  argument
312 	if (!frag)  in is_frag_child()
314 	if (ceph_frag_bits(f) != ceph_frag_bits(frag->frag) + frag->split_by)  in is_frag_child()
316 	return ceph_frag_contains_value(frag->frag, ceph_frag_value(f));  in is_frag_child()
324 	struct ceph_inode_frag *frag, *prev_frag = NULL;  in ceph_fill_fragtree()  local
336 		id = le32_to_cpu(fragtree->splits[i].frag);  in ceph_fill_fragtree()
341 		frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
342 		if (frag->frag != ceph_frag_make(0, 0) || rb_next(rb_node))  in ceph_fill_fragtree()
346 		id = le32_to_cpu(dirinfo->frag);  in ceph_fill_fragtree()
361 		id = le32_to_cpu(fragtree->splits[i].frag);  in ceph_fill_fragtree()
369 		frag = NULL;  in ceph_fill_fragtree()
371 			frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
372 			if (ceph_frag_compare(frag->frag, id) >= 0) {  in ceph_fill_fragtree()
373 				if (frag->frag != id)  in ceph_fill_fragtree()
374 					frag = NULL;  in ceph_fill_fragtree()
381 			if (frag->split_by > 0 ||  in ceph_fill_fragtree()
382 			    !is_frag_child(frag->frag, prev_frag)) {  in ceph_fill_fragtree()
383 				rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_fragtree()
384 				if (frag->split_by > 0)  in ceph_fill_fragtree()
386 				kfree(frag);  in ceph_fill_fragtree()
388 			frag = NULL;  in ceph_fill_fragtree()
390 		if (!frag) {  in ceph_fill_fragtree()
391 			frag = __get_or_create_frag(ci, id);  in ceph_fill_fragtree()
392 			if (IS_ERR(frag))  in ceph_fill_fragtree()
395 		if (frag->split_by == 0)  in ceph_fill_fragtree()
397 		frag->split_by = split_by;  in ceph_fill_fragtree()
398 		dout(" frag %x split by %d\n", frag->frag, frag->split_by);  in ceph_fill_fragtree()
399 		prev_frag = frag;  in ceph_fill_fragtree()
402 		frag = rb_entry(rb_node, struct ceph_inode_frag, node);  in ceph_fill_fragtree()
405 		if (frag->split_by > 0 ||  in ceph_fill_fragtree()
406 		    !is_frag_child(frag->frag, prev_frag)) {  in ceph_fill_fragtree()
407 			rb_erase(&frag->node, &ci->i_fragtree);  in ceph_fill_fragtree()
408 			if (frag->split_by > 0)  in ceph_fill_fragtree()
410 			kfree(frag);  in ceph_fill_fragtree()
534 	struct ceph_inode_frag *frag;  in ceph_evict_inode()  local
574 		frag = rb_entry(n, struct ceph_inode_frag, node);  in ceph_evict_inode()
576 		kfree(frag);  in ceph_evict_inode()
1568 	u32 frag = le32_to_cpu(rhead->args.readdir.frag);  in ceph_readdir_prepopulate()  local
1590 	    le32_to_cpu(rinfo->dir_dir->frag) != frag) {  in ceph_readdir_prepopulate()
1592 		     frag, le32_to_cpu(rinfo->dir_dir->frag));  in ceph_readdir_prepopulate()
1593 		frag = le32_to_cpu(rinfo->dir_dir->frag);  in ceph_readdir_prepopulate()
1607 		if (ceph_frag_is_leftmost(frag) &&  in ceph_readdir_prepopulate()
1644 			rde->offset = ceph_make_fpos(frag, fpos_offset++, false);  in ceph_readdir_prepopulate()