1493 				int needed, struct ext4_free_extent *ex)  in mb_find_extent()  argument
1500 	BUG_ON(ex == NULL);  in mb_find_extent()
1506 		ex->fe_len = 0;  in mb_find_extent()
1507 		ex->fe_start = 0;  in mb_find_extent()
1508 		ex->fe_group = 0;  in mb_find_extent()
1516 	ex->fe_len = 1 << order;  in mb_find_extent()
1517 	ex->fe_start = block << order;  in mb_find_extent()
1518 	ex->fe_group = e4b->bd_group;  in mb_find_extent()
1521 	next = next - ex->fe_start;  in mb_find_extent()
1522 	ex->fe_len -= next;  in mb_find_extent()
1523 	ex->fe_start += next;  in mb_find_extent()
1525 	while (needed > ex->fe_len &&  in mb_find_extent()
1538 		ex->fe_len += 1 << order;  in mb_find_extent()
1541 	BUG_ON(ex->fe_start + ex->fe_len > (1 << (e4b->bd_blkbits + 3)));  in mb_find_extent()
1542 	return ex->fe_len;  in mb_find_extent()
1545 static int mb_mark_used(struct ext4_buddy *e4b, struct ext4_free_extent *ex)  in mb_mark_used()  argument
1551 	int start = ex->fe_start;  in mb_mark_used()
1552 	int len = ex->fe_len;  in mb_mark_used()
1558 	BUG_ON(e4b->bd_group != ex->fe_group);  in mb_mark_used()
1614 	ext4_set_bits(e4b->bd_bitmap, ex->fe_start, len0);  in mb_mark_used()
1675 	struct ext4_free_extent ex;  in ext4_mb_check_limits()  local
1700 		max = mb_find_extent(e4b, bex->fe_start, gex->fe_len, &ex);  in ext4_mb_check_limits()
1719 					struct ext4_free_extent *ex,  in ext4_mb_measure_extent()  argument
1725 	BUG_ON(ex->fe_len <= 0);  in ext4_mb_measure_extent()
1726 	BUG_ON(ex->fe_len > EXT4_CLUSTERS_PER_GROUP(ac->ac_sb));  in ext4_mb_measure_extent()
1727 	BUG_ON(ex->fe_start >= EXT4_CLUSTERS_PER_GROUP(ac->ac_sb));  in ext4_mb_measure_extent()
1736 		*bex = *ex;  in ext4_mb_measure_extent()
1744 	if (ex->fe_len == gex->fe_len) {  in ext4_mb_measure_extent()
1745 		*bex = *ex;  in ext4_mb_measure_extent()
1754 		*bex = *ex;  in ext4_mb_measure_extent()
1764 		if (ex->fe_len > bex->fe_len)  in ext4_mb_measure_extent()
1765 			*bex = *ex;  in ext4_mb_measure_extent()
1766 	} else if (ex->fe_len > gex->fe_len) {  in ext4_mb_measure_extent()
1770 		if (ex->fe_len < bex->fe_len)  in ext4_mb_measure_extent()
1771 			*bex = *ex;  in ext4_mb_measure_extent()
1781 	struct ext4_free_extent ex = ac->ac_b_ex;  in ext4_mb_try_best_found()  local
1782 	ext4_group_t group = ex.fe_group;  in ext4_mb_try_best_found()
1786 	BUG_ON(ex.fe_len <= 0);  in ext4_mb_try_best_found()
1792 	max = mb_find_extent(e4b, ex.fe_start, ex.fe_len, &ex);  in ext4_mb_try_best_found()
1795 		ac->ac_b_ex = ex;  in ext4_mb_try_best_found()
1814 	struct ext4_free_extent ex;  in ext4_mb_find_by_goal()  local
1832 			     ac->ac_g_ex.fe_len, &ex);  in ext4_mb_find_by_goal()
1833 	ex.fe_logical = 0xDEADFA11; /* debug value */  in ext4_mb_find_by_goal()
1839 			ex.fe_start;  in ext4_mb_find_by_goal()
1843 			ac->ac_b_ex = ex;  in ext4_mb_find_by_goal()
1847 		BUG_ON(ex.fe_len <= 0);  in ext4_mb_find_by_goal()
1848 		BUG_ON(ex.fe_group != ac->ac_g_ex.fe_group);  in ext4_mb_find_by_goal()
1849 		BUG_ON(ex.fe_start != ac->ac_g_ex.fe_start);  in ext4_mb_find_by_goal()
1851 		ac->ac_b_ex = ex;  in ext4_mb_find_by_goal()
1856 		BUG_ON(ex.fe_len <= 0);  in ext4_mb_find_by_goal()
1857 		BUG_ON(ex.fe_group != ac->ac_g_ex.fe_group);  in ext4_mb_find_by_goal()
1858 		BUG_ON(ex.fe_start != ac->ac_g_ex.fe_start);  in ext4_mb_find_by_goal()
1860 		ac->ac_b_ex = ex;  in ext4_mb_find_by_goal()
1923 	struct ext4_free_extent ex;  in ext4_mb_complex_scan_group()  local
1948 		mb_find_extent(e4b, i, ac->ac_g_ex.fe_len, &ex);  in ext4_mb_complex_scan_group()
1949 		BUG_ON(ex.fe_len <= 0);  in ext4_mb_complex_scan_group()
1950 		if (free < ex.fe_len) {  in ext4_mb_complex_scan_group()
1954 					free, ex.fe_len);  in ext4_mb_complex_scan_group()
1962 		ex.fe_logical = 0xDEADC0DE; /* debug value */  in ext4_mb_complex_scan_group()
1963 		ext4_mb_measure_extent(ac, &ex, e4b);  in ext4_mb_complex_scan_group()
1965 		i += ex.fe_len;  in ext4_mb_complex_scan_group()
1966 		free -= ex.fe_len;  in ext4_mb_complex_scan_group()
1983 	struct ext4_free_extent ex;  in ext4_mb_scan_aligned()  local
2000 			max = mb_find_extent(e4b, i, sbi->s_stripe, &ex);  in ext4_mb_scan_aligned()
2003 				ex.fe_logical = 0xDEADF00D; /* debug value */  in ext4_mb_scan_aligned()
2004 				ac->ac_b_ex = ex;  in ext4_mb_scan_aligned()
5032 	struct ext4_free_extent ex;  in ext4_trim_extent()  local
5039 	ex.fe_start = start;  in ext4_trim_extent()
5040 	ex.fe_group = group;  in ext4_trim_extent()
5041 	ex.fe_len = count;  in ext4_trim_extent()
5047 	mb_mark_used(e4b, &ex);  in ext4_trim_extent()
5051 	mb_free_blocks(NULL, e4b, start, ex.fe_len);  in ext4_trim_extent()