f2fs: should unset atomic flag after successful commit

If there is an error during commit, we should keep the flag in order to
abort it.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 3d43857..18ddb1e 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1378,8 +1378,10 @@
 	if (f2fs_is_atomic_file(inode)) {
 		clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
 		ret = commit_inmem_pages(inode, false);
-		if (ret)
+		if (ret) {
+			set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
 			goto err_out;
+		}
 	}
 
 	ret = f2fs_sync_file(filp, 0, LLONG_MAX, 0);