1504 				int needed, struct ext4_free_extent *ex)  in mb_find_extent()  argument
1511 	BUG_ON(ex == NULL);  in mb_find_extent()
1517 		ex->fe_len = 0;  in mb_find_extent()
1518 		ex->fe_start = 0;  in mb_find_extent()
1519 		ex->fe_group = 0;  in mb_find_extent()
1527 	ex->fe_len = 1 << order;  in mb_find_extent()
1528 	ex->fe_start = block << order;  in mb_find_extent()
1529 	ex->fe_group = e4b->bd_group;  in mb_find_extent()
1532 	next = next - ex->fe_start;  in mb_find_extent()
1533 	ex->fe_len -= next;  in mb_find_extent()
1534 	ex->fe_start += next;  in mb_find_extent()
1536 	while (needed > ex->fe_len &&  in mb_find_extent()
1549 		ex->fe_len += 1 << order;  in mb_find_extent()
1552 	BUG_ON(ex->fe_start + ex->fe_len > (1 << (e4b->bd_blkbits + 3)));  in mb_find_extent()
1553 	return ex->fe_len;  in mb_find_extent()
1556 static int mb_mark_used(struct ext4_buddy *e4b, struct ext4_free_extent *ex)  in mb_mark_used()  argument
1562 	int start = ex->fe_start;  in mb_mark_used()
1563 	int len = ex->fe_len;  in mb_mark_used()
1569 	BUG_ON(e4b->bd_group != ex->fe_group);  in mb_mark_used()
1625 	ext4_set_bits(e4b->bd_bitmap, ex->fe_start, len0);  in mb_mark_used()
1686 	struct ext4_free_extent ex;  in ext4_mb_check_limits()  local
1711 		max = mb_find_extent(e4b, bex->fe_start, gex->fe_len, &ex);  in ext4_mb_check_limits()
1730 					struct ext4_free_extent *ex,  in ext4_mb_measure_extent()  argument
1736 	BUG_ON(ex->fe_len <= 0);  in ext4_mb_measure_extent()
1737 	BUG_ON(ex->fe_len > EXT4_CLUSTERS_PER_GROUP(ac->ac_sb));  in ext4_mb_measure_extent()
1738 	BUG_ON(ex->fe_start >= EXT4_CLUSTERS_PER_GROUP(ac->ac_sb));  in ext4_mb_measure_extent()
1747 		*bex = *ex;  in ext4_mb_measure_extent()
1755 	if (ex->fe_len == gex->fe_len) {  in ext4_mb_measure_extent()
1756 		*bex = *ex;  in ext4_mb_measure_extent()
1765 		*bex = *ex;  in ext4_mb_measure_extent()
1775 		if (ex->fe_len > bex->fe_len)  in ext4_mb_measure_extent()
1776 			*bex = *ex;  in ext4_mb_measure_extent()
1777 	} else if (ex->fe_len > gex->fe_len) {  in ext4_mb_measure_extent()
1781 		if (ex->fe_len < bex->fe_len)  in ext4_mb_measure_extent()
1782 			*bex = *ex;  in ext4_mb_measure_extent()
1792 	struct ext4_free_extent ex = ac->ac_b_ex;  in ext4_mb_try_best_found()  local
1793 	ext4_group_t group = ex.fe_group;  in ext4_mb_try_best_found()
1797 	BUG_ON(ex.fe_len <= 0);  in ext4_mb_try_best_found()
1803 	max = mb_find_extent(e4b, ex.fe_start, ex.fe_len, &ex);  in ext4_mb_try_best_found()
1806 		ac->ac_b_ex = ex;  in ext4_mb_try_best_found()
1825 	struct ext4_free_extent ex;  in ext4_mb_find_by_goal()  local
1843 			     ac->ac_g_ex.fe_len, &ex);  in ext4_mb_find_by_goal()
1844 	ex.fe_logical = 0xDEADFA11; /* debug value */  in ext4_mb_find_by_goal()
1850 			ex.fe_start;  in ext4_mb_find_by_goal()
1854 			ac->ac_b_ex = ex;  in ext4_mb_find_by_goal()
1858 		BUG_ON(ex.fe_len <= 0);  in ext4_mb_find_by_goal()
1859 		BUG_ON(ex.fe_group != ac->ac_g_ex.fe_group);  in ext4_mb_find_by_goal()
1860 		BUG_ON(ex.fe_start != ac->ac_g_ex.fe_start);  in ext4_mb_find_by_goal()
1862 		ac->ac_b_ex = ex;  in ext4_mb_find_by_goal()
1867 		BUG_ON(ex.fe_len <= 0);  in ext4_mb_find_by_goal()
1868 		BUG_ON(ex.fe_group != ac->ac_g_ex.fe_group);  in ext4_mb_find_by_goal()
1869 		BUG_ON(ex.fe_start != ac->ac_g_ex.fe_start);  in ext4_mb_find_by_goal()
1871 		ac->ac_b_ex = ex;  in ext4_mb_find_by_goal()
1934 	struct ext4_free_extent ex;  in ext4_mb_complex_scan_group()  local
1959 		mb_find_extent(e4b, i, ac->ac_g_ex.fe_len, &ex);  in ext4_mb_complex_scan_group()
1960 		BUG_ON(ex.fe_len <= 0);  in ext4_mb_complex_scan_group()
1961 		if (free < ex.fe_len) {  in ext4_mb_complex_scan_group()
1965 					free, ex.fe_len);  in ext4_mb_complex_scan_group()
1973 		ex.fe_logical = 0xDEADC0DE; /* debug value */  in ext4_mb_complex_scan_group()
1974 		ext4_mb_measure_extent(ac, &ex, e4b);  in ext4_mb_complex_scan_group()
1976 		i += ex.fe_len;  in ext4_mb_complex_scan_group()
1977 		free -= ex.fe_len;  in ext4_mb_complex_scan_group()
1994 	struct ext4_free_extent ex;  in ext4_mb_scan_aligned()  local
2011 			max = mb_find_extent(e4b, i, sbi->s_stripe, &ex);  in ext4_mb_scan_aligned()
2014 				ex.fe_logical = 0xDEADF00D; /* debug value */  in ext4_mb_scan_aligned()
2015 				ac->ac_b_ex = ex;  in ext4_mb_scan_aligned()
5057 	struct ext4_free_extent ex;  in ext4_trim_extent()  local
5064 	ex.fe_start = start;  in ext4_trim_extent()
5065 	ex.fe_group = group;  in ext4_trim_extent()
5066 	ex.fe_len = count;  in ext4_trim_extent()
5072 	mb_mark_used(e4b, &ex);  in ext4_trim_extent()
5076 	mb_free_blocks(NULL, e4b, start, ex.fe_len);  in ext4_trim_extent()