diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 95a388f..ccb9c2f 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2799,7 +2799,7 @@
 	ext4_free_group_clusters_set(sb, gdp, len);
 	ext4_block_bitmap_csum_set(sb, ac->ac_b_ex.fe_group, gdp, bitmap_bh,
 				   EXT4_BLOCKS_PER_GROUP(sb) / 8);
-	gdp->bg_checksum = ext4_group_desc_csum(sbi, ac->ac_b_ex.fe_group, gdp);
+	ext4_group_desc_csum_set(sb, ac->ac_b_ex.fe_group, gdp);
 
 	ext4_unlock_group(sb, ac->ac_b_ex.fe_group);
 	percpu_counter_sub(&sbi->s_freeclusters_counter, ac->ac_b_ex.fe_len);
@@ -4663,7 +4663,7 @@
 	ext4_free_group_clusters_set(sb, gdp, ret);
 	ext4_block_bitmap_csum_set(sb, block_group, gdp, bitmap_bh,
 				   EXT4_BLOCKS_PER_GROUP(sb) / 8);
-	gdp->bg_checksum = ext4_group_desc_csum(sbi, block_group, gdp);
+	ext4_group_desc_csum_set(sb, block_group, gdp);
 	ext4_unlock_group(sb, block_group);
 	percpu_counter_add(&sbi->s_freeclusters_counter, count_clusters);
 
@@ -4809,7 +4809,7 @@
 	ext4_free_group_clusters_set(sb, desc, blk_free_count);
 	ext4_block_bitmap_csum_set(sb, block_group, desc, bitmap_bh,
 				   EXT4_BLOCKS_PER_GROUP(sb) / 8);
-	desc->bg_checksum = ext4_group_desc_csum(sbi, block_group, desc);
+	ext4_group_desc_csum_set(sb, block_group, desc);
 	ext4_unlock_group(sb, block_group);
 	percpu_counter_add(&sbi->s_freeclusters_counter,
 			   EXT4_B2C(sbi, blocks_freed));