Forwarded: Re: [syzbot] WARNING in can_finish_ordered_extent

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Subject: Re: [syzbot] WARNING in can_finish_ordered_extent
Author: adarshdas950@gmail.com

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index d7600e5fa3d9..2117b2a80edd 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1895,9 +1895,14 @@ static int submit_one_sector(struct btrfs_inode *inode,
 	queued = submit_extent_folio(bio_ctrl, disk_bytenr, folio,
 				     sectorsize, filepos - folio_pos(folio), 0);
 	if (unlikely(queued < sectorsize)) {
+		u32 unqueued = sectorsize - queued;
+
 		btrfs_folio_clear_writeback(fs_info, folio, filepos, sectorsize);
-		btrfs_mark_ordered_io_finished(inode, filepos, fs_info->sectorsize,
-					       false);
+		if (unqueued)
+			btrfs_mark_ordered_io_finished(inode, filepos + queued,
+						       unqueued, false);
+		if (bio_ctrl->bbio && bio_ctrl->bbio->bio.bi_iter.bi_size)
+			submit_one_bio(bio_ctrl);
 		return -EUCLEAN;
 	}
 	return 0;