271 	struct xfs_dir2_leaf_map_info *mip,  in xfs_dir2_leaf_readbuf()  argument
277 	struct xfs_bmbt_irec	*map = mip->map;  in xfs_dir2_leaf_readbuf()
293 		mip->map_blocks -= geo->fsbcount;  in xfs_dir2_leaf_readbuf()
307 			if (!map->br_blockcount && --mip->map_valid)  in xfs_dir2_leaf_readbuf()
309 					sizeof(map[0]) * mip->map_valid);  in xfs_dir2_leaf_readbuf()
317 	mip->ra_want = howmany(bufsize + geo->blksize, (1 << geo->fsblog)) - 1;  in xfs_dir2_leaf_readbuf()
318 	ASSERT(mip->ra_want >= 0);  in xfs_dir2_leaf_readbuf()
324 	if (1 + mip->ra_want > mip->map_blocks &&  in xfs_dir2_leaf_readbuf()
325 	    mip->map_off < xfs_dir2_byte_to_da(geo, XFS_DIR2_LEAF_OFFSET)) {  in xfs_dir2_leaf_readbuf()
330 		mip->nmap = mip->map_size - mip->map_valid;  in xfs_dir2_leaf_readbuf()
331 		error = xfs_bmapi_read(dp, mip->map_off,  in xfs_dir2_leaf_readbuf()
333 								mip->map_off,  in xfs_dir2_leaf_readbuf()
334 				&map[mip->map_valid], &mip->nmap, 0);  in xfs_dir2_leaf_readbuf()
349 		if (mip->nmap == mip->map_size - mip->map_valid) {  in xfs_dir2_leaf_readbuf()
350 			i = mip->map_valid + mip->nmap - 1;  in xfs_dir2_leaf_readbuf()
351 			mip->map_off = map[i].br_startoff + map[i].br_blockcount;  in xfs_dir2_leaf_readbuf()
353 			mip->map_off = xfs_dir2_byte_to_da(geo,  in xfs_dir2_leaf_readbuf()
360 		for (i = mip->map_valid; i < mip->map_valid + mip->nmap; ) {  in xfs_dir2_leaf_readbuf()
362 				mip->nmap--;  in xfs_dir2_leaf_readbuf()
363 				length = mip->map_valid + mip->nmap - i;  in xfs_dir2_leaf_readbuf()
368 				mip->map_blocks += map[i].br_blockcount;  in xfs_dir2_leaf_readbuf()
372 		mip->map_valid += mip->nmap;  in xfs_dir2_leaf_readbuf()
378 	if (!mip->map_valid) {  in xfs_dir2_leaf_readbuf()
379 		*curoff = xfs_dir2_da_to_byte(geo, mip->map_off);  in xfs_dir2_leaf_readbuf()
386 	mip->curdb = xfs_dir2_da_to_db(geo, map->br_startoff);  in xfs_dir2_leaf_readbuf()
401 	if (mip->ra_current)  in xfs_dir2_leaf_readbuf()
402 		mip->ra_current -= geo->fsbcount;  in xfs_dir2_leaf_readbuf()
408 	for (mip->ra_index = mip->ra_offset = i = 0;  in xfs_dir2_leaf_readbuf()
409 	     mip->ra_want > mip->ra_current && i < mip->map_blocks;  in xfs_dir2_leaf_readbuf()
411 		ASSERT(mip->ra_index < mip->map_valid);  in xfs_dir2_leaf_readbuf()
415 		if (i > mip->ra_current &&  in xfs_dir2_leaf_readbuf()
416 		    map[mip->ra_index].br_blockcount >= geo->fsbcount) {  in xfs_dir2_leaf_readbuf()
418 				map[mip->ra_index].br_startoff + mip->ra_offset,  in xfs_dir2_leaf_readbuf()
420 					map[mip->ra_index].br_startblock +  in xfs_dir2_leaf_readbuf()
421 							mip->ra_offset));  in xfs_dir2_leaf_readbuf()
422 			mip->ra_current = i;  in xfs_dir2_leaf_readbuf()
429 		else if (i > mip->ra_current) {  in xfs_dir2_leaf_readbuf()
431 					map[mip->ra_index].br_startoff +  in xfs_dir2_leaf_readbuf()
432 							mip->ra_offset, -1);  in xfs_dir2_leaf_readbuf()
433 			mip->ra_current = i;  in xfs_dir2_leaf_readbuf()
445 					map[mip->ra_index].br_blockcount -  in xfs_dir2_leaf_readbuf()
446 							mip->ra_offset);  in xfs_dir2_leaf_readbuf()
447 			mip->ra_offset += length;  in xfs_dir2_leaf_readbuf()
452 			if (mip->ra_offset == map[mip->ra_index].br_blockcount) {  in xfs_dir2_leaf_readbuf()
453 				mip->ra_offset = 0;  in xfs_dir2_leaf_readbuf()
454 				mip->ra_index++;  in xfs_dir2_leaf_readbuf()