1209 				int needed, struct ext4_free_extent *ex)  in mb_find_extent()  argument
1217 	BUG_ON(ex == NULL);  in mb_find_extent()
1223 		ex->fe_len = 0;  in mb_find_extent()
1224 		ex->fe_start = 0;  in mb_find_extent()
1225 		ex->fe_group = 0;  in mb_find_extent()
1236 	ex->fe_len = 1 << order;  in mb_find_extent()
1237 	ex->fe_start = block << order;  in mb_find_extent()
1238 	ex->fe_group = e4b->bd_group;  in mb_find_extent()
1241 	next = next - ex->fe_start;  in mb_find_extent()
1242 	ex->fe_len -= next;  in mb_find_extent()
1243 	ex->fe_start += next;  in mb_find_extent()
1245 	while (needed > ex->fe_len &&  in mb_find_extent()
1259 		ex->fe_len += 1 << order;  in mb_find_extent()
1262 	BUG_ON(ex->fe_start + ex->fe_len > (1 << (e4b->bd_blkbits + 3)));  in mb_find_extent()
1263 	return ex->fe_len;  in mb_find_extent()
1266 static int mb_mark_used(struct ext4_buddy *e4b, struct ext4_free_extent *ex)  in mb_mark_used()  argument
1272 	int start = ex->fe_start;  in mb_mark_used()
1273 	int len = ex->fe_len;  in mb_mark_used()
1279 	BUG_ON(e4b->bd_group != ex->fe_group);  in mb_mark_used()
1334 	mb_set_bits(sb_bgl_lock(EXT4_SB(e4b->bd_sb), ex->fe_group),  in mb_mark_used()
1335 			EXT4_MB_BITMAP(e4b), ex->fe_start, len0);  in mb_mark_used()
1399 	struct ext4_free_extent ex;  in ext4_mb_check_limits()  local
1424 		max = mb_find_extent(e4b, 0, bex->fe_start, gex->fe_len, &ex);  in ext4_mb_check_limits()
1443 					struct ext4_free_extent *ex,  in ext4_mb_measure_extent()  argument
1449 	BUG_ON(ex->fe_len <= 0);  in ext4_mb_measure_extent()
1450 	BUG_ON(ex->fe_len > EXT4_BLOCKS_PER_GROUP(ac->ac_sb));  in ext4_mb_measure_extent()
1451 	BUG_ON(ex->fe_start >= EXT4_BLOCKS_PER_GROUP(ac->ac_sb));  in ext4_mb_measure_extent()
1460 		*bex = *ex;  in ext4_mb_measure_extent()
1468 	if (ex->fe_len == gex->fe_len) {  in ext4_mb_measure_extent()
1469 		*bex = *ex;  in ext4_mb_measure_extent()
1478 		*bex = *ex;  in ext4_mb_measure_extent()
1488 		if (ex->fe_len > bex->fe_len)  in ext4_mb_measure_extent()
1489 			*bex = *ex;  in ext4_mb_measure_extent()
1490 	} else if (ex->fe_len > gex->fe_len) {  in ext4_mb_measure_extent()
1494 		if (ex->fe_len < bex->fe_len)  in ext4_mb_measure_extent()
1495 			*bex = *ex;  in ext4_mb_measure_extent()
1504 	struct ext4_free_extent ex = ac->ac_b_ex;  in ext4_mb_try_best_found()  local
1505 	ext4_group_t group = ex.fe_group;  in ext4_mb_try_best_found()
1509 	BUG_ON(ex.fe_len <= 0);  in ext4_mb_try_best_found()
1515 	max = mb_find_extent(e4b, 0, ex.fe_start, ex.fe_len, &ex);  in ext4_mb_try_best_found()
1518 		ac->ac_b_ex = ex;  in ext4_mb_try_best_found()
1536 	struct ext4_free_extent ex;  in ext4_mb_find_by_goal()  local
1547 			     ac->ac_g_ex.fe_len, &ex);  in ext4_mb_find_by_goal()
1553 			ex.fe_start + le32_to_cpu(es->s_first_data_block);  in ext4_mb_find_by_goal()
1557 			ac->ac_b_ex = ex;  in ext4_mb_find_by_goal()
1561 		BUG_ON(ex.fe_len <= 0);  in ext4_mb_find_by_goal()
1562 		BUG_ON(ex.fe_group != ac->ac_g_ex.fe_group);  in ext4_mb_find_by_goal()
1563 		BUG_ON(ex.fe_start != ac->ac_g_ex.fe_start);  in ext4_mb_find_by_goal()
1565 		ac->ac_b_ex = ex;  in ext4_mb_find_by_goal()
1570 		BUG_ON(ex.fe_len <= 0);  in ext4_mb_find_by_goal()
1571 		BUG_ON(ex.fe_group != ac->ac_g_ex.fe_group);  in ext4_mb_find_by_goal()
1572 		BUG_ON(ex.fe_start != ac->ac_g_ex.fe_start);  in ext4_mb_find_by_goal()
1574 		ac->ac_b_ex = ex;  in ext4_mb_find_by_goal()
1635 	struct ext4_free_extent ex;  in ext4_mb_complex_scan_group()  local
1660 		mb_find_extent(e4b, 0, i, ac->ac_g_ex.fe_len, &ex);  in ext4_mb_complex_scan_group()
1661 		BUG_ON(ex.fe_len <= 0);  in ext4_mb_complex_scan_group()
1662 		if (free < ex.fe_len) {  in ext4_mb_complex_scan_group()
1666 					free, ex.fe_len);  in ext4_mb_complex_scan_group()
1675 		ext4_mb_measure_extent(ac, &ex, e4b);  in ext4_mb_complex_scan_group()
1677 		i += ex.fe_len;  in ext4_mb_complex_scan_group()
1678 		free -= ex.fe_len;  in ext4_mb_complex_scan_group()
1695 	struct ext4_free_extent ex;  in ext4_mb_scan_aligned()  local
1712 			max = mb_find_extent(e4b, 0, i, sbi->s_stripe, &ex);  in ext4_mb_scan_aligned()
1715 				ac->ac_b_ex = ex;  in ext4_mb_scan_aligned()