diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 1b0c17364631ae465875061eb2a8046d00e55c17..0bd39188531cbf7b31fae9dfd975235de7e6e592 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -683,7 +683,8 @@ struct ext4_super_block {
 	__u8	s_log_groups_per_flex;  /* FLEX_BG group size */
 	__u8	s_reserved_char_pad2;
 	__le16  s_reserved_pad;
-	__u32   s_reserved[162];        /* Padding to the end of the block */
+	__le64	s_kbytes_written;	/* nr of lifetime kilobytes written */
+	__u32   s_reserved[160];        /* Padding to the end of the block */
 };
 
 #ifdef __KERNEL__
diff --git a/fs/ext4/ext4_sb.h b/fs/ext4/ext4_sb.h
index 4e4d9cc3f40d855a0bcb3b98edb0c4ac8963cc62..50ab1169c378bbcc2e8e5b746fc2a6064a51e4ce 100644
--- a/fs/ext4/ext4_sb.h
+++ b/fs/ext4/ext4_sb.h
@@ -142,6 +142,10 @@ struct ext4_sb_info {
 	/* locality groups */
 	struct ext4_locality_group *s_locality_groups;
 
+	/* for write statistics */
+	unsigned long s_sectors_written_start;
+	u64 s_kbytes_written;
+
 	unsigned int s_log_groups_per_flex;
 	struct flex_groups *s_flex_groups;
 };
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index a3768709ce05f109ef749b421a3cc1a2a727bac4..30fc27cdf8fc90673414e0e11bc946128a6b6faa 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2035,6 +2035,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	sbi->s_resgid = EXT4_DEF_RESGID;
 	sbi->s_inode_readahead_blks = EXT4_DEF_INODE_READAHEAD_BLKS;
 	sbi->s_sb_block = sb_block;
+	sbi->s_sectors_written_start = part_stat_read(sb->s_bdev->bd_part,
+						      sectors[1]);
 
 	unlock_kernel();
 
@@ -2072,6 +2074,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_magic = le16_to_cpu(es->s_magic);
 	if (sb->s_magic != EXT4_SUPER_MAGIC)
 		goto cantfind_ext4;
+	sbi->s_kbytes_written = le64_to_cpu(es->s_kbytes_written);
 
 	/* Set defaults before we parse the mount options */
 	def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
@@ -2921,6 +2924,10 @@ static int ext4_commit_super(struct super_block *sb,
 		set_buffer_uptodate(sbh);
 	}
 	es->s_wtime = cpu_to_le32(get_seconds());
+	es->s_kbytes_written =
+		cpu_to_le64(EXT4_SB(sb)->s_kbytes_written + 
+			    ((part_stat_read(sb->s_bdev->bd_part, sectors[1]) -
+			      EXT4_SB(sb)->s_sectors_written_start) >> 1));
 	ext4_free_blocks_count_set(es, percpu_counter_sum_positive(
 					&EXT4_SB(sb)->s_freeblocks_counter));
 	es->s_free_inodes_count = cpu_to_le32(percpu_counter_sum_positive(