fs/ext2/balloc.c

570  * @maxblocks:		the ending block (group relative) of the reservation
577 					ext2_grpblk_t maxblocks)
581 	next = ext2_find_next_zero_bit(bh->b_data, maxblocks, start);
582 	if (next >= maxblocks)
592  * @maxblocks:		the ending block (group relative) for the search
600 find_next_usable_block(int start, struct buffer_head *bh, int maxblocks)
615 		if (end_goal > maxblocks)
616 			end_goal = maxblocks;
628 	r = memscan(p, 0, ((maxblocks + 7) >> 3) - (here >> 3));
631 	if (next < maxblocks && next >= here)
634 	here = bitmap_search_next_usable_block(here, bh, maxblocks);