242 	struct ext4_new_flex_group_data *flex_gd;  in alloc_flex_gd()  local
244 	flex_gd = kmalloc(sizeof(*flex_gd), GFP_NOFS);  in alloc_flex_gd()
245 	if (flex_gd == NULL)  in alloc_flex_gd()
250 	flex_gd->count = flexbg_size;  in alloc_flex_gd()
252 	flex_gd->groups = kmalloc_array(flexbg_size,  in alloc_flex_gd()
255 	if (flex_gd->groups == NULL)  in alloc_flex_gd()
258 	flex_gd->bg_flags = kmalloc_array(flexbg_size, sizeof(__u16),  in alloc_flex_gd()
260 	if (flex_gd->bg_flags == NULL)  in alloc_flex_gd()
263 	return flex_gd;  in alloc_flex_gd()
266 	kfree(flex_gd->groups);  in alloc_flex_gd()
268 	kfree(flex_gd);  in alloc_flex_gd()
273 static void free_flex_gd(struct ext4_new_flex_group_data *flex_gd)  in free_flex_gd()  argument
275 	kfree(flex_gd->bg_flags);  in free_flex_gd()
276 	kfree(flex_gd->groups);  in free_flex_gd()
277 	kfree(flex_gd);  in free_flex_gd()
294 				struct ext4_new_flex_group_data *flex_gd,  in ext4_alloc_group_tables()  argument
297 	struct ext4_new_group_data *group_data = flex_gd->groups;  in ext4_alloc_group_tables()
310 	BUG_ON(flex_gd->count == 0 || group_data == NULL);  in ext4_alloc_group_tables()
313 	last_group  = src_group + flex_gd->count - 1;  in ext4_alloc_group_tables()
319 	if (src_group >= group_data[0].group + flex_gd->count)  in ext4_alloc_group_tables()
339 	for (; bb_index < flex_gd->count; bb_index++) {  in ext4_alloc_group_tables()
346 		flex_gd->bg_flags[group] &= uninit_mask;  in ext4_alloc_group_tables()
350 	for (; ib_index < flex_gd->count; ib_index++) {  in ext4_alloc_group_tables()
357 		flex_gd->bg_flags[group] &= uninit_mask;  in ext4_alloc_group_tables()
361 	for (; it_index < flex_gd->count; it_index++) {  in ext4_alloc_group_tables()
373 			flex_gd->bg_flags[group + 1] &= uninit_mask;  in ext4_alloc_group_tables()
380 		flex_gd->bg_flags[group] &= uninit_mask;  in ext4_alloc_group_tables()
385 	for (i = 0; i < flex_gd->count; i++) {  in ext4_alloc_group_tables()
396 		       "%d groups, flexbg size is %d:\n", flex_gd->count,  in ext4_alloc_group_tables()
399 		for (i = 0; i < flex_gd->count; i++) {  in ext4_alloc_group_tables()
449 			struct ext4_new_flex_group_data *flex_gd,  in set_flexbg_block_bitmap()  argument
467 		group -= flex_gd->groups[0].group;  in set_flexbg_block_bitmap()
473 		if (flex_gd->bg_flags[group] & EXT4_BG_BLOCK_UNINIT) {  in set_flexbg_block_bitmap()
474 			BUG_ON(flex_gd->count > 1);  in set_flexbg_block_bitmap()
482 		bh = sb_getblk(sb, flex_gd->groups[group].block_bitmap);  in set_flexbg_block_bitmap()
520 				struct ext4_new_flex_group_data *flex_gd)  in setup_new_flex_group_blocks()  argument
527 	struct ext4_new_group_data *group_data = flex_gd->groups;  in setup_new_flex_group_blocks()
528 	__u16 *bg_flags = flex_gd->bg_flags;  in setup_new_flex_group_blocks()
535 	BUG_ON(!flex_gd->count || !group_data ||  in setup_new_flex_group_blocks()
547 	for (i = 0; i < flex_gd->count; i++, group++) {  in setup_new_flex_group_blocks()
681 		for (i = 1; i < flex_gd->count; i++) {  in setup_new_flex_group_blocks()
688 						      flex_gd,  in setup_new_flex_group_blocks()
702 						      flex_gd,  in setup_new_flex_group_blocks()
1302 				struct ext4_new_flex_group_data *flex_gd)  in ext4_setup_new_descs()  argument
1304 	struct ext4_new_group_data	*group_data = flex_gd->groups;  in ext4_setup_new_descs()
1309 	__u16				*bg_flags = flex_gd->bg_flags;  in ext4_setup_new_descs()
1313 	for (i = 0; i < flex_gd->count; i++, group_data++, bg_flags++) {  in ext4_setup_new_descs()
1371 			     struct ext4_new_flex_group_data *flex_gd)  in ext4_update_super()  argument
1376 	struct ext4_new_group_data *group_data = flex_gd->groups;  in ext4_update_super()
1381 	BUG_ON(flex_gd->count == 0 || group_data == NULL);  in ext4_update_super()
1392 	for (i = 0; i < flex_gd->count; i++) {  in ext4_update_super()
1405 		     flex_gd->count);  in ext4_update_super()
1407 		     flex_gd->count);  in ext4_update_super()
1431 	sbi->s_groups_count += flex_gd->count;  in ext4_update_super()
1444 			   EXT4_INODES_PER_GROUP(sb) * flex_gd->count);  in ext4_update_super()
1456 		atomic_add(EXT4_INODES_PER_GROUP(sb) * flex_gd->count,  in ext4_update_super()
1468 		       "%llu blocks(%llu free %llu reserved)\n", flex_gd->count,  in ext4_update_super()
1478 			       struct ext4_new_flex_group_data *flex_gd)  in ext4_flex_group_add()  argument
1489 	BUG_ON(!flex_gd->count || !flex_gd->groups || !flex_gd->bg_flags);  in ext4_flex_group_add()
1496 	err = setup_new_flex_group_blocks(sb, flex_gd);  in ext4_flex_group_add()
1508 	credit += 1 + DIV_ROUND_UP(flex_gd->count, EXT4_DESC_PER_BLOCK(sb));  in ext4_flex_group_add()
1521 	group = flex_gd->groups[0].group;  in ext4_flex_group_add()
1524 				resize_inode, flex_gd->count);  in ext4_flex_group_add()
1528 	err = ext4_setup_new_descs(handle, sb, flex_gd);  in ext4_flex_group_add()
1532 	ext4_update_super(sb, flex_gd);  in ext4_flex_group_add()
1543 		int gdb_num_end = ((group + flex_gd->count - 1) /  in ext4_flex_group_add()
1567 				    struct ext4_new_flex_group_data *flex_gd,  in ext4_setup_next_flex_gd()  argument
1573 	struct ext4_new_group_data *group_data = flex_gd->groups;  in ext4_setup_next_flex_gd()
1597 	flex_gd->count = last_group - group + 1;  in ext4_setup_next_flex_gd()
1599 	for (i = 0; i < flex_gd->count; i++) {  in ext4_setup_next_flex_gd()
1608 			flex_gd->bg_flags[i] = EXT4_BG_BLOCK_UNINIT |  in ext4_setup_next_flex_gd()
1611 				flex_gd->bg_flags[i] |= EXT4_BG_INODE_ZEROED;  in ext4_setup_next_flex_gd()
1613 			flex_gd->bg_flags[i] = EXT4_BG_INODE_ZEROED;  in ext4_setup_next_flex_gd()
1618 		flex_gd->bg_flags[i - 1] &= ~EXT4_BG_BLOCK_UNINIT;  in ext4_setup_next_flex_gd()
1644 	struct ext4_new_flex_group_data flex_gd;  in ext4_group_add()  local
1700 	flex_gd.count = 1;  in ext4_group_add()
1701 	flex_gd.groups = input;  in ext4_group_add()
1702 	flex_gd.bg_flags = &bg_flags;  in ext4_group_add()
1703 	err = ext4_flex_group_add(sb, inode, &flex_gd);  in ext4_group_add()
1936 	struct ext4_new_flex_group_data *flex_gd = NULL;  in ext4_resize_fs()  local
2082 	flex_gd = alloc_flex_gd(flexbg_size);  in ext4_resize_fs()
2083 	if (flex_gd == NULL) {  in ext4_resize_fs()
2091 	while (ext4_setup_next_flex_gd(sb, flex_gd, n_blocks_count,  in ext4_resize_fs()
2100 		if (ext4_alloc_group_tables(sb, flex_gd, flexbg_size) != 0)  in ext4_resize_fs()
2102 		err = ext4_flex_group_add(sb, resize_inode, flex_gd);  in ext4_resize_fs()
2110 		free_flex_gd(flex_gd);  in ext4_resize_fs()
2111 		flex_gd = NULL;  in ext4_resize_fs()
2120 	if (flex_gd)  in ext4_resize_fs()
2121 		free_flex_gd(flex_gd);  in ext4_resize_fs()