fs/xfs/xfs_log_recover.c

272 	xfs_daddr_t	first_blk,
283 	mid_blk = BLK_AVG(first_blk, end_blk);
284 	while (mid_blk != first_blk && mid_blk != end_blk) {
292 			first_blk = mid_blk; /* first_half_cycle == mid_cycle */
293 		mid_blk = BLK_AVG(first_blk, end_blk);
295 	ASSERT((mid_blk == first_blk && mid_blk+1 == end_blk) ||
296 	       (mid_blk == end_blk && mid_blk-1 == first_blk));
504 	xfs_daddr_t	new_blk, first_blk, start_blk, last_blk, head_blk;
511 	error = xlog_find_zeroed(log, &first_blk);
517 		*return_head_blk = first_blk;
520 		if (!first_blk) {
531 	first_blk = 0;			/* get cycle # of 1st block */
613 		error = xlog_find_cycle_start(log, buffer, first_blk, &head_blk,