3744 	struct buffer_head *bitmap_bh = NULL;  in ext4_mb_mark_diskspace_used()  local
3758 	bitmap_bh = ext4_read_block_bitmap(sb, ac->ac_b_ex.fe_group);  in ext4_mb_mark_diskspace_used()
3759 	if (IS_ERR(bitmap_bh)) {  in ext4_mb_mark_diskspace_used()
3760 		err = PTR_ERR(bitmap_bh);  in ext4_mb_mark_diskspace_used()
3761 		bitmap_bh = NULL;  in ext4_mb_mark_diskspace_used()
3765 	BUFFER_TRACE(bitmap_bh, "getting write access");  in ext4_mb_mark_diskspace_used()
3766 	err = ext4_journal_get_write_access(handle, sb, bitmap_bh,  in ext4_mb_mark_diskspace_used()
3795 		mb_set_bits(bitmap_bh->b_data, ac->ac_b_ex.fe_start,  in ext4_mb_mark_diskspace_used()
3798 		err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);  in ext4_mb_mark_diskspace_used()
3810 						bitmap_bh->b_data));  in ext4_mb_mark_diskspace_used()
3814 	mb_set_bits(bitmap_bh->b_data, ac->ac_b_ex.fe_start,  in ext4_mb_mark_diskspace_used()
3825 	ext4_block_bitmap_csum_set(sb, ac->ac_b_ex.fe_group, gdp, bitmap_bh);  in ext4_mb_mark_diskspace_used()
3846 	err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);  in ext4_mb_mark_diskspace_used()
3852 	brelse(bitmap_bh);  in ext4_mb_mark_diskspace_used()
3863 	struct buffer_head *bitmap_bh = NULL;  in ext4_mb_mark_bb()  local
3892 			bitmap_bh = NULL;  in ext4_mb_mark_bb()
3896 		bitmap_bh = ext4_read_block_bitmap(sb, group);  in ext4_mb_mark_bb()
3897 		if (IS_ERR(bitmap_bh)) {  in ext4_mb_mark_bb()
3898 			err = PTR_ERR(bitmap_bh);  in ext4_mb_mark_bb()
3899 			bitmap_bh = NULL;  in ext4_mb_mark_bb()
3911 			if (!mb_test_bit(blkoff + i, bitmap_bh->b_data) ==  in ext4_mb_mark_bb()
3917 			mb_set_bits(bitmap_bh->b_data, blkoff, clen);  in ext4_mb_mark_bb()
3919 			mb_clear_bits(bitmap_bh->b_data, blkoff, clen);  in ext4_mb_mark_bb()
3932 		ext4_block_bitmap_csum_set(sb, group, gdp, bitmap_bh);  in ext4_mb_mark_bb()
3949 		err = ext4_handle_dirty_metadata(NULL, NULL, bitmap_bh);  in ext4_mb_mark_bb()
3952 		sync_dirty_buffer(bitmap_bh);  in ext4_mb_mark_bb()
3960 		brelse(bitmap_bh);  in ext4_mb_mark_bb()
3965 		brelse(bitmap_bh);  in ext4_mb_mark_bb()
4759 ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,  in ext4_mb_release_inode_pa()  argument
4778 		bit = mb_find_next_zero_bit(bitmap_bh->b_data, end, bit);  in ext4_mb_release_inode_pa()
4781 		next = mb_find_next_bit(bitmap_bh->b_data, end, bit);  in ext4_mb_release_inode_pa()
4845 	struct buffer_head *bitmap_bh = NULL;  in ext4_mb_discard_group_preallocations()  local
4856 	bitmap_bh = ext4_read_block_bitmap(sb, group);  in ext4_mb_discard_group_preallocations()
4857 	if (IS_ERR(bitmap_bh)) {  in ext4_mb_discard_group_preallocations()
4858 		err = PTR_ERR(bitmap_bh);  in ext4_mb_discard_group_preallocations()
4869 		put_bh(bitmap_bh);  in ext4_mb_discard_group_preallocations()
4914 			ext4_mb_release_inode_pa(&e4b, bitmap_bh, pa);  in ext4_mb_discard_group_preallocations()
4922 	put_bh(bitmap_bh);  in ext4_mb_discard_group_preallocations()
4942 	struct buffer_head *bitmap_bh = NULL;  in ext4_discard_preallocations()  local
5029 		bitmap_bh = ext4_read_block_bitmap(sb, group);  in ext4_discard_preallocations()
5030 		if (IS_ERR(bitmap_bh)) {  in ext4_discard_preallocations()
5031 			err = PTR_ERR(bitmap_bh);  in ext4_discard_preallocations()
5040 		ext4_mb_release_inode_pa(&e4b, bitmap_bh, pa);  in ext4_discard_preallocations()
5044 		put_bh(bitmap_bh);  in ext4_discard_preallocations()
5782 	struct buffer_head *bitmap_bh;  in ext4_mb_new_blocks_simple()  local
5799 		bitmap_bh = ext4_read_block_bitmap(sb, group);  in ext4_mb_new_blocks_simple()
5800 		if (IS_ERR(bitmap_bh)) {  in ext4_mb_new_blocks_simple()
5801 			*errp = PTR_ERR(bitmap_bh);  in ext4_mb_new_blocks_simple()
5810 			i = mb_find_next_zero_bit(bitmap_bh->b_data, max,  in ext4_mb_new_blocks_simple()
5820 		brelse(bitmap_bh);  in ext4_mb_new_blocks_simple()
5840 	struct buffer_head *bitmap_bh;  in ext4_free_blocks_simple()  local
5849 	bitmap_bh = ext4_read_block_bitmap(sb, group);  in ext4_free_blocks_simple()
5850 	if (IS_ERR(bitmap_bh)) {  in ext4_free_blocks_simple()
5851 		err = PTR_ERR(bitmap_bh);  in ext4_free_blocks_simple()
5860 		if (!mb_test_bit(blkoff + i, bitmap_bh->b_data))  in ext4_free_blocks_simple()
5863 	mb_clear_bits(bitmap_bh->b_data, blkoff, count);  in ext4_free_blocks_simple()
5864 	err = ext4_handle_dirty_metadata(NULL, NULL, bitmap_bh);  in ext4_free_blocks_simple()
5870 	ext4_block_bitmap_csum_set(sb, group, gdp, bitmap_bh);  in ext4_free_blocks_simple()
5873 	sync_dirty_buffer(bitmap_bh);  in ext4_free_blocks_simple()
5875 	brelse(bitmap_bh);  in ext4_free_blocks_simple()
5891 	struct buffer_head *bitmap_bh = NULL;  in ext4_mb_clear_bb()  local
5935 	bitmap_bh = ext4_read_block_bitmap(sb, block_group);  in ext4_mb_clear_bb()
5936 	if (IS_ERR(bitmap_bh)) {  in ext4_mb_clear_bb()
5937 		err = PTR_ERR(bitmap_bh);  in ext4_mb_clear_bb()
5938 		bitmap_bh = NULL;  in ext4_mb_clear_bb()
5955 	BUFFER_TRACE(bitmap_bh, "getting write access");  in ext4_mb_clear_bb()
5956 	err = ext4_journal_get_write_access(handle, sb, bitmap_bh,  in ext4_mb_clear_bb()
5974 			BUG_ON(!mb_test_bit(bit + i, bitmap_bh->b_data));  in ext4_mb_clear_bb()
6007 		mb_clear_bits(bitmap_bh->b_data, bit, count_clusters);  in ext4_mb_clear_bb()
6026 		mb_clear_bits(bitmap_bh->b_data, bit, count_clusters);  in ext4_mb_clear_bb()
6032 	ext4_block_bitmap_csum_set(sb, block_group, gdp, bitmap_bh);  in ext4_mb_clear_bb()
6058 	BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");  in ext4_mb_clear_bb()
6059 	err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);  in ext4_mb_clear_bb()
6070 		put_bh(bitmap_bh);  in ext4_mb_clear_bb()
6076 	brelse(bitmap_bh);  in ext4_mb_clear_bb()
6195 	struct buffer_head *bitmap_bh = NULL;  in ext4_group_add_blocks()  local
6226 	bitmap_bh = ext4_read_block_bitmap(sb, block_group);  in ext4_group_add_blocks()
6227 	if (IS_ERR(bitmap_bh)) {  in ext4_group_add_blocks()
6228 		err = PTR_ERR(bitmap_bh);  in ext4_group_add_blocks()
6229 		bitmap_bh = NULL;  in ext4_group_add_blocks()
6247 	BUFFER_TRACE(bitmap_bh, "getting write access");  in ext4_group_add_blocks()
6248 	err = ext4_journal_get_write_access(handle, sb, bitmap_bh,  in ext4_group_add_blocks()
6264 		BUFFER_TRACE(bitmap_bh, "clear bit");  in ext4_group_add_blocks()
6265 		if (!mb_test_bit(bit + i, bitmap_bh->b_data)) {  in ext4_group_add_blocks()
6268 			BUFFER_TRACE(bitmap_bh, "bit already cleared");  in ext4_group_add_blocks()
6284 	mb_clear_bits(bitmap_bh->b_data, bit, cluster_count);  in ext4_group_add_blocks()
6289 	ext4_block_bitmap_csum_set(sb, block_group, desc, bitmap_bh);  in ext4_group_add_blocks()
6305 	BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");  in ext4_group_add_blocks()
6306 	err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);  in ext4_group_add_blocks()
6315 	brelse(bitmap_bh);  in ext4_group_add_blocks()