diff --git a/debugfs/debugfs.c b/debugfs/debugfs.c
index bc8413d..0908f48 100644
--- a/debugfs/debugfs.c
+++ b/debugfs/debugfs.c
@@ -1684,7 +1684,6 @@ fail:
 	return retval;
 }
 
-
 void do_write(int argc, char *argv[])
 {
 	int		fd;
@@ -1750,8 +1749,11 @@ void do_write(int argc, char *argv[])
 		current_fs->now ? current_fs->now : time(0);
 	inode.i_links_count = 1;
 	inode.i_size = statbuf.st_size;
-	if (current_fs->super->s_feature_incompat &
-	    EXT3_FEATURE_INCOMPAT_EXTENTS) {
+	if (EXT2_HAS_INCOMPAT_FEATURE(current_fs->super,
+				      EXT4_FEATURE_INCOMPAT_INLINE_DATA)) {
+		inode.i_flags |= EXT4_INLINE_DATA_FL;
+	} else if (current_fs->super->s_feature_incompat &
+		   EXT3_FEATURE_INCOMPAT_EXTENTS) {
 		int i;
 		struct ext3_extent_header *eh;
 
@@ -1768,6 +1770,11 @@ void do_write(int argc, char *argv[])
 		close(fd);
 		return;
 	}
+	if (inode.i_flags & EXT4_INLINE_DATA_FL) {
+		retval = ext2fs_inline_data_init(current_fs, newfile);
+		if (retval)
+			return;
+	}
 	if (LINUX_S_ISREG(inode.i_mode)) {
 		if (statbuf.st_blocks < statbuf.st_size / S_BLKSIZE) {
 			make_holes = 1;
diff --git a/lib/ext2fs/ext2_err.et.in b/lib/ext2fs/ext2_err.et.in
index f93f0e8..99360da 100644
--- a/lib/ext2fs/ext2_err.et.in
+++ b/lib/ext2fs/ext2_err.et.in
@@ -506,4 +506,7 @@ ec	EXT2_ET_NO_INLINE_DATA,
 ec	EXT2_ET_INLINE_DATA_NO_BLOCK,
 	"No block for an inode with inline data"
 
+ec	EXT2_ET_INLINE_DATA_NO_SPACE,
+	"No free space in inline data"
+
 	end
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 322c39d..b10d6dd 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -1171,6 +1171,8 @@ errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
 			       struct ext2_inode_large *inode);
 size_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle);
+errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
+				      size_t *size);
 
 /* extent.c */
 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
diff --git a/lib/ext2fs/ext2fsP.h b/lib/ext2fs/ext2fsP.h
index bfc321c..e159128 100644
--- a/lib/ext2fs/ext2fsP.h
+++ b/lib/ext2fs/ext2fsP.h
@@ -102,6 +102,12 @@ extern errcode_t ext2fs_inline_data_dir_iterate(ext2_filsys fs,
 						  int	      ref_offset,
 						  void	      *priv_data),
 				      void *priv_data);
+extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
+					struct ext2_inode *inode,
+					void *buf, size_t *size);
+extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
+					struct ext2_inode *inode,
+					void *buf, size_t size);
 
 /* Generic numeric progress meter */
 
diff --git a/lib/ext2fs/ext_attr.c b/lib/ext2fs/ext_attr.c
index e5e0fa9..3942f1c 100644
--- a/lib/ext2fs/ext_attr.c
+++ b/lib/ext2fs/ext_attr.c
@@ -842,6 +842,70 @@ errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
 	return EXT2_ET_EA_KEY_NOT_FOUND;
 }
 
+errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
+				      size_t *size)
+{
+	struct ext2_ext_attr_header *header;
+	struct ext2_ext_attr_entry *entry;
+	struct ext2_inode_large *inode;
+	__u32 ea_inode_magic;
+	unsigned int storage_size, freesize, minoff;
+	void *start;
+	int i;
+	errcode_t err;
+
+	i = EXT2_INODE_SIZE(fs->super);
+	if (i < sizeof(*inode))
+		i = sizeof(*inode);
+	err = ext2fs_get_memzero(i, &inode);
+	if (err)
+		return err;
+
+	err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)inode,
+				     EXT2_INODE_SIZE(fs->super));
+	if (err)
+		goto out;
+
+	/* Does the inode have size for EA? */
+	if (EXT2_INODE_SIZE(fs->super) <= EXT2_GOOD_OLD_INODE_SIZE +
+						  inode->i_extra_isize +
+						  sizeof(__u32)) {
+		err = EXT2_ET_INLINE_DATA_NO_SPACE;
+		goto out;
+	}
+
+	minoff = EXT2_INODE_SIZE(fs->super) - sizeof(*inode) - sizeof(__u32);
+	memcpy(&ea_inode_magic, ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
+	       inode->i_extra_isize, sizeof(__u32));
+	if (ea_inode_magic == EXT2_EXT_ATTR_MAGIC) {
+		/* has xattrs.  calculate the size */
+		storage_size = EXT2_INODE_SIZE(fs->super) -
+			EXT2_GOOD_OLD_INODE_SIZE - inode->i_extra_isize -
+			sizeof(__u32);
+		start= ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
+			inode->i_extra_isize + sizeof(__u32);
+		entry = start;
+		while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
+			if (!entry->e_value_block && entry->e_value_size) {
+				unsigned int offs = entry->e_value_offs;
+				if (offs < minoff)
+					minoff = offs;
+			}
+			entry = EXT2_EXT_ATTR_NEXT(entry);
+		}
+		*size = minoff - ((char *)entry - (char *)start) - sizeof(__u32);
+	} else {
+		/* no xattr.  return a maximum size */
+		*size = EXT2_EXT_ATTR_SIZE(minoff -
+					   EXT2_EXT_ATTR_LEN(strlen("data")) -
+					   EXT2_EXT_ATTR_ROUND - sizeof(__u32));
+	}
+
+out:
+	ext2fs_free_mem(&inode);
+	return err;
+}
+
 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
 			   const char *key,
 			   const void *value,
diff --git a/lib/ext2fs/fileio.c b/lib/ext2fs/fileio.c
index 02e6263..a9f25db 100644
--- a/lib/ext2fs/fileio.c
+++ b/lib/ext2fs/fileio.c
@@ -224,6 +224,38 @@ errcode_t ext2fs_file_close(ext2_file_t file)
 }
 
 
+static errcode_t
+ext2fs_file_read_inline_data(ext2_file_t file, void *buf,
+			     unsigned int wanted, unsigned int *got)
+{
+	ext2_filsys fs;
+	errcode_t retval;
+	unsigned int count = 0;
+	size_t size;
+
+	fs = file->fs;
+	retval = ext2fs_inline_data_get(fs, file->ino, &file->inode,
+					file->buf, &size);
+	if (retval)
+		return retval;
+
+	if (file->pos >= size)
+		goto out;
+
+	count = size - file->pos;
+	if (count > wanted)
+		count = wanted;
+	memcpy(buf, file->buf + file->pos, count);
+	file->pos += count;
+	buf += count;
+
+out:
+	if (got)
+		*got = count;
+	return retval;
+}
+
+
 errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
 			   unsigned int wanted, unsigned int *got)
 {
@@ -236,6 +268,10 @@ errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
 	EXT2_CHECK_MAGIC(file, EXT2_ET_MAGIC_EXT2_FILE);
 	fs = file->fs;
 
+	/* If an inode has inline data, things get complicated. */
+	if (file->inode.i_flags & EXT4_INLINE_DATA_FL)
+		return ext2fs_file_read_inline_data(file, buf, wanted, got);
+
 	while ((file->pos < EXT2_I_SIZE(&file->inode)) && (wanted > 0)) {
 		retval = sync_buffer_position(file);
 		if (retval)
@@ -266,6 +302,66 @@ fail:
 }
 
 
+static errcode_t
+ext2fs_file_write_inline_data(ext2_file_t file, const void *buf,
+			      unsigned int nbytes, unsigned int *written)
+{
+	ext2_filsys fs;
+	errcode_t retval;
+	unsigned int count = 0;
+	size_t size;
+
+	fs = file->fs;
+	retval = ext2fs_inline_data_get(fs, file->ino, &file->inode,
+					file->buf, &size);
+	if (retval)
+		return retval;
+
+	if (file->pos < size) {
+		count = nbytes - file->pos;
+		memcpy(file->buf + file->pos, buf, count);
+
+		retval = ext2fs_inline_data_set(fs, file->ino, &file->inode,
+						file->buf, count);
+		if (retval == EXT2_ET_INLINE_DATA_NO_SPACE)
+			goto expand;
+		if (retval)
+			return retval;
+
+		file->pos += count;
+
+		/* Update inode size */
+		if (count != 0 && EXT2_I_SIZE(&file->inode) < file->pos) {
+			errcode_t	rc;
+
+			rc = ext2fs_file_set_size2(file, file->pos);
+			if (retval == 0)
+				retval = rc;
+		}
+
+		if (written)
+			*written = count;
+		return 0;
+	}
+
+expand:
+	retval = ext2fs_inline_data_expand(fs, file->ino);
+	if (retval)
+		return retval;
+	/*
+	 * reload inode and return no space error
+	 *
+	 * XXX: file->inode could be copied from the outside
+	 * in ext2fs_file_open2().  We have no way to modify
+	 * the outside inode.
+	 */
+	retval = ext2fs_read_inode(fs, file->ino, &file->inode);
+	if (retval)
+		return retval;
+	return EXT2_ET_INLINE_DATA_NO_SPACE;
+}
+
+
 errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
 			    unsigned int nbytes, unsigned int *written)
 {
@@ -280,6 +376,16 @@ errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
 	if (!(file->flags & EXT2_FILE_WRITE))
 		return EXT2_ET_FILE_RO;
 
+	/* If an inode has inline data, things get complicated. */
+	if (file->inode.i_flags & EXT4_INLINE_DATA_FL) {
+		retval = ext2fs_file_write_inline_data(file, buf, nbytes,
+						       written);
+		if (retval != EXT2_ET_INLINE_DATA_NO_SPACE)
+			return retval;
+		/* fall through to read data from the block */
+		retval = 0;
+	}
+
 	while (nbytes > 0) {
 		retval = sync_buffer_position(file);
 		if (retval)
diff --git a/lib/ext2fs/inline_data.c b/lib/ext2fs/inline_data.c
index a25c5bd..1905121 100644
--- a/lib/ext2fs/inline_data.c
+++ b/lib/ext2fs/inline_data.c
@@ -336,14 +336,98 @@ err:
 	return retval;
 }
 
+static errcode_t
+ext2fs_inline_data_dir_expand(ext2_filsys fs, ext2_ino_t ino,
+			      struct ext2_inode *inode, char *buf, size_t size)
+{
+	errcode_t retval;
+	blk64_t blk;
+	char *blk_buf;
+
+	retval = ext2fs_get_memzero(fs->blocksize, &blk_buf);
+	if (retval)
+		return retval;
+
+#ifdef WORDS_BIGENDIAN
+	retval = ext2fs_dirent_swab_in2(fs, buf, size);
+	if (retval)
+		goto errout;
+#endif
+
+	/* Adjust the rec_len */
+	retval = ext2fs_inline_data_convert_dir(fs, ino, blk_buf, buf, size);
+	/* Allocate a new block */
+	retval = ext2fs_new_block2(fs, 0, 0, &blk);
+	if (retval)
+		goto errout;
+	retval = ext2fs_write_dir_block4(fs, blk, blk_buf, 0, ino);
+	if (retval)
+		goto errout;
+
+	/* Update inode */
+	if (EXT2_HAS_INCOMPAT_FEATURE(fs->super, EXT3_FEATURE_INCOMPAT_EXTENTS))
+		inode->i_flags |= EXT4_EXTENTS_FL;
+	inode->i_flags &= ~EXT4_INLINE_DATA_FL;
+	ext2fs_iblk_set(fs, inode, 1);
+	inode->i_size = fs->blocksize;
+	retval = ext2fs_bmap2(fs, ino, inode, 0, BMAP_SET, 0, 0, &blk);
+	if (retval)
+		goto errout;
+	retval = ext2fs_write_inode(fs, ino, inode);
+	if (retval)
+		goto errout;
+	ext2fs_block_alloc_stats(fs, blk, +1);
+
+errout:
+	ext2fs_free_mem(&blk_buf);
+	return retval;
+}
+
+static errcode_t
+ext2fs_inline_data_file_expand(ext2_filsys fs, ext2_ino_t ino,
+			       struct ext2_inode *inode, char *buf, size_t size)
+{
+	ext2_file_t e2_file;
+	errcode_t retval;
+
+	/* Update inode */
+	if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+				      EXT3_FEATURE_INCOMPAT_EXTENTS)) {
+		int i;
+		struct ext3_extent_header *eh;
+
+		eh = (struct ext3_extent_header *) &inode->i_block[0];
+		eh->eh_depth = 0;
+		eh->eh_entries = 0;
+		eh->eh_magic = EXT3_EXT_MAGIC;
+		i = (sizeof(inode->i_block) - sizeof(*eh)) /
+			sizeof(struct ext3_extent);
+		eh->eh_max = ext2fs_cpu_to_le16(i);
+		inode->i_flags |= EXT4_EXTENTS_FL;
+	}
+	inode->i_flags &= ~EXT4_INLINE_DATA_FL;
+	ext2fs_iblk_set(fs, inode, 0);
+	inode->i_size = 0;
+	retval = ext2fs_write_inode(fs, ino, inode);
+	if (retval)
+		return retval;
+
+	/* Write out the block buffer */
+	retval = ext2fs_file_open(fs, ino, EXT2_FILE_WRITE, &e2_file);
+	if (retval)
+		return retval;
+	retval = ext2fs_file_write(e2_file, buf, size, 0);
+	ext2fs_file_close(e2_file);
+	return retval;
+}
+
 errcode_t ext2fs_inline_data_expand(ext2_filsys fs, ext2_ino_t ino)
 {
 	struct ext2_inode inode;
 	struct ext2_inline_data data;
 	errcode_t retval;
-	blk64_t blk;
+	size_t inline_size;
 	char *inline_buf = 0;
-	char *blk_buf = 0;
 
 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
 
@@ -354,14 +438,13 @@ errcode_t ext2fs_inline_data_expand(ext2_filsys fs, ext2_ino_t ino)
 	if (!(inode.i_flags & EXT4_INLINE_DATA_FL))
 		return EXT2_ET_NO_INLINE_DATA;
 
-	/* Get inline data first */
 	data.fs = fs;
 	data.ino = ino;
 	retval = ext2fs_inline_data_ea_get(&data);
 	if (retval)
 		return retval;
-	retval = ext2fs_get_mem(EXT4_MIN_INLINE_DATA_SIZE + data.ea_size,
-				&inline_buf);
+	inline_size = data.ea_size + EXT4_MIN_INLINE_DATA_SIZE;
+	retval = ext2fs_get_mem(inline_size, &inline_buf);
 	if (retval)
 		goto errout;
 
@@ -371,56 +454,98 @@ errcode_t ext2fs_inline_data_expand(ext2_filsys fs, ext2_ino_t ino)
 		       data.ea_data, data.ea_size);
 	}
 
-#ifdef WORDS_BIGENDIAN
-	retval = ext2fs_dirent_swab_in2(fs, inline_buf,
-			data.ea_size + EXT4_MIN_INLINE_DATA_SIZE);
-	if (retval)
-		goto errout;
-#endif
-
 	memset((void *)inode.i_block, 0, EXT4_MIN_INLINE_DATA_SIZE);
 	retval = ext2fs_inline_data_ea_remove(fs, ino);
 	if (retval)
 		goto errout;
 
-	retval = ext2fs_get_mem(fs->blocksize, &blk_buf);
-	if (retval)
-		goto errout;
-
-	/* Adjust the rec_len */
-	retval = ext2fs_inline_data_convert_dir(fs, ino, blk_buf, inline_buf,
-						EXT4_MIN_INLINE_DATA_SIZE +
-							data.ea_size);
-	if (retval)
-		goto errout;
-
-	/* Allocate a new block */
-	retval = ext2fs_new_block2(fs, 0, 0, &blk);
-	if (retval)
-		goto errout;
-	retval = ext2fs_write_dir_block4(fs, blk, blk_buf, 0, ino);
-	if (retval)
-		goto errout;
-
-	/* Update inode */
-	if (EXT2_HAS_INCOMPAT_FEATURE(fs->super, EXT3_FEATURE_INCOMPAT_EXTENTS))
-		inode.i_flags |= EXT4_EXTENTS_FL;
-	inode.i_flags &= ~EXT4_INLINE_DATA_FL;
-	ext2fs_iblk_set(fs, &inode, 1);
-	inode.i_size = fs->blocksize;
-	retval = ext2fs_bmap2(fs, ino, &inode, 0, BMAP_SET, 0, 0, &blk);
-	if (retval)
-		goto errout;
-	retval = ext2fs_write_inode(fs, ino, &inode);
-	if (retval)
-		goto errout;
-	ext2fs_block_alloc_stats2(fs, blk, +1);
+	if (LINUX_S_ISDIR(inode.i_mode)) {
+		retval = ext2fs_inline_data_dir_expand(fs, ino, &inode,
+						inline_buf, inline_size);
+	} else {
+		retval = ext2fs_inline_data_file_expand(fs, ino, &inode,
+						inline_buf, inline_size);
+	}
 
 errout:
-	if (blk_buf)
-		ext2fs_free_mem(&blk_buf);
 	if (inline_buf)
 		ext2fs_free_mem(&inline_buf);
 	ext2fs_free_mem(&data.ea_data);
 	return retval;
 }
+
+/*
+ * When caller uses this function to retrieve the inline data, it must
+ * allocate a buffer which has the size of inline data.  The size of
+ * inline data can be know by ext2fs_inline_data_get_size().
+ */
+errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
+				 struct ext2_inode *inode,
+				 void *buf, size_t *size)
+{
+	struct ext2_inode inode_buf;
+	struct ext2_inline_data data;
+	errcode_t retval;
+
+	if (!inode) {
+		retval = ext2fs_read_inode(fs, ino, &inode_buf);
+		if (retval)
+			return retval;
+		inode = &inode_buf;
+	}
+
+	data.fs = fs;
+	data.ino = ino;
+	retval = ext2fs_inline_data_ea_get(&data);
+	if (retval)
+		return retval;
+
+	memcpy(buf, (void *)inode->i_block, EXT4_MIN_INLINE_DATA_SIZE);
+	if (data.ea_size > 0)
+		memcpy(buf + EXT4_MIN_INLINE_DATA_SIZE,
+		       data.ea_data, data.ea_size);
+
+	if (size)
+		*size = EXT4_MIN_INLINE_DATA_SIZE + data.ea_size;
+	ext2fs_free_mem(&data.ea_data);
+	return 0;
+}
+
+errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
+				 struct ext2_inode *inode,
+				 void *buf, size_t size)
+{
+	struct ext2_inode inode_buf;
+	struct ext2_inline_data data;
+	errcode_t retval;
+	size_t max_size;
+
+	if (!inode) {
+		retval = ext2fs_read_inode(fs, ino, &inode_buf);
+		if (retval)
+			return retval;
+		inode = &inode_buf;
+	}
+
+	if (size <= EXT4_MIN_INLINE_DATA_SIZE) {
+		memcpy((void *)inode->i_block, buf, size);
+		return ext2fs_write_inode(fs, ino, inode);
+	}
+
+	retval = ext2fs_xattr_inode_max_size(fs, ino, &max_size);
+	if (retval)
+		return retval;
+
+	if (size - EXT4_MIN_INLINE_DATA_SIZE > max_size)
+		return EXT2_ET_INLINE_DATA_NO_SPACE;
+
+	memcpy((void *)inode->i_block, buf, EXT4_MIN_INLINE_DATA_SIZE);
+	retval = ext2fs_write_inode(fs, ino, inode);
+	if (retval)
+		return retval;
+	data.fs = fs;
+	data.ino = ino;
+	data.ea_size = size - EXT4_MIN_INLINE_DATA_SIZE;
+	data.ea_data = buf + EXT4_MIN_INLINE_DATA_SIZE;
+	return ext2fs_inline_data_ea_set(&data);
+}
