prefree_map      1938 fs/f2fs/segment.c 	unsigned long *prefree_map = dirty_i->dirty_segmap[PRE];
prefree_map      1951 fs/f2fs/segment.c 		start = find_next_bit(prefree_map, MAIN_SEGS(sbi), end + 1);
prefree_map      1954 fs/f2fs/segment.c 		end = find_next_zero_bit(prefree_map, MAIN_SEGS(sbi),
prefree_map      1963 fs/f2fs/segment.c 			if (test_and_clear_bit(i, prefree_map))