f2fs: clear PageError on writepage

This patch clears PageError in some pages tagged by read path, but when we
write the pages with valid contents, writepage should clear the bit likewise
ext4.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index f90ad7a..07f182a 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1735,6 +1735,7 @@
 			goto out_writepage;
 
 		set_page_writeback(page);
+		ClearPageError(page);
 		f2fs_put_dnode(&dn);
 		if (fio->need_lock == LOCK_REQ)
 			f2fs_unlock_op(fio->sbi);
@@ -1757,6 +1758,7 @@
 		goto out_writepage;
 
 	set_page_writeback(page);
+	ClearPageError(page);
 
 	/* LFS mode write path */
 	write_data_page(&dn, fio);