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gfs2: Fix use of bio_chain

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In gfs2_chain_bio(), the call to bio_chain() has its arguments swapped.
The result is leaked bios and incorrect synchronization (only the last
bio will actually be waited for).  This code is only used during mount
and filesystem thaw, so the bug normally won't be noticeable.

Reported-by: Stephen Zhang <starzhangzsd@gmail.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2025-11-30 21:19:52 +00:00
parent 83348905e4
commit 8a157e0a0a
1 changed files with 1 additions and 1 deletions
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2
fs/gfs2/lops.c
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@ -484,7 +484,7 @@ static struct bio *gfs2_chain_bio(struct bio *prev, unsigned int nr_iovecs)
new = bio_alloc(prev->bi_bdev, nr_iovecs, prev->bi_opf, GFP_NOIO);
bio_clone_blkg_association(new, prev);
new->bi_iter.bi_sector = bio_end_sector(prev);
bio_chain(new, prev);
bio_chain(prev, new);
submit_bio(prev);
return new;
}