return ofs == XATTR_NODE_OFFSET;
 }
 
+static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool);
 static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
                                 struct inode *inode, blkcnt_t *count)
 {
                }
        }
        /* *count can be recalculated */
-       inode->i_blocks += *count;
+       f2fs_i_blocks_write(inode, *count, true);
        sbi->total_valid_block_count =
                sbi->total_valid_block_count + (block_t)(*count);
        spin_unlock(&sbi->stat_lock);
        spin_lock(&sbi->stat_lock);
        f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
        f2fs_bug_on(sbi, inode->i_blocks < count);
-       inode->i_blocks -= count;
+       f2fs_i_blocks_write(inode, count, false);
        sbi->total_valid_block_count -= (block_t)count;
        spin_unlock(&sbi->stat_lock);
 }
        }
 
        if (inode)
-               inode->i_blocks++;
+               f2fs_i_blocks_write(inode, 1, true);
 
        sbi->total_valid_node_count++;
        sbi->total_valid_block_count++;
        f2fs_bug_on(sbi, !sbi->total_valid_node_count);
        f2fs_bug_on(sbi, !inode->i_blocks);
 
-       inode->i_blocks--;
+       f2fs_i_blocks_write(inode, 1, false);
        sbi->total_valid_node_count--;
        sbi->total_valid_block_count--;
 
        set_inode_flag(inode, FI_ACL_MODE);
 }
 
+static inline void f2fs_i_blocks_write(struct inode *inode,
+                                       blkcnt_t diff, bool add)
+{
+       inode->i_blocks = add ? inode->i_blocks + diff :
+                               inode->i_blocks - diff;
+       mark_inode_dirty_sync(inode);
+}
+
 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
 {
        if (i_size_read(inode) == i_size)