Implement new aops for ext2.

 fs/ext2/inode.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)

Index: linux-2.6/fs/ext2/inode.c
===================================================================
--- linux-2.6.orig/fs/ext2/inode.c
+++ linux-2.6/fs/ext2/inode.c
@@ -643,6 +643,16 @@ ext2_readpages(struct file *file, struct
 }
 
 static int
+ext2_write_begin(struct file *file, struct address_space *mapping,
+		loff_t pos, unsigned len, unsigned flags,
+		struct page **pagep, void **fsdata)
+{
+	*pagep = NULL;
+	return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
+							ext2_get_block);
+}
+
+static int
 ext2_prepare_write(struct file *file, struct page *page,
 			unsigned from, unsigned to)
 {
@@ -689,6 +699,8 @@ const struct address_space_operations ex
 	.readpages		= ext2_readpages,
 	.writepage		= ext2_writepage,
 	.sync_page		= block_sync_page,
+	.write_begin		= ext2_write_begin,
+	.write_end		= block_write_end,
 	.prepare_write		= ext2_prepare_write,
 	.commit_write		= generic_commit_write,
 	.bmap			= ext2_bmap,