f2fs: split set_data_blkaddr from f2fs_update_extent_cache

Split __set_data_blkaddr from f2fs_update_extent_cache for readability.

Additionally rename __set_data_blkaddr to set_data_blkaddr for exporting.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 6e40874..e60ffaa 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -403,6 +403,7 @@
 			/* write dummy data page */
 			recover_data_page(sbi, NULL, &sum, src, dest);
 			dn.data_blkaddr = dest;
+			set_data_blkaddr(&dn);
 			f2fs_update_extent_cache(&dn);
 			recovered++;
 		}