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Date:   Mon, 8 Jul 2019 23:35:15 +0200
From:   Christoph Hellwig <>
To:     Qian Cai <>
Subject: Re: memory leaks from xfs_rw_bdev()

We actually have a discussion on that in another thread, but if you
can easily reproduce the issue, can you test the patch below?

diff --git a/fs/xfs/xfs_bio_io.c b/fs/xfs/xfs_bio_io.c
index 757c1d9293eb..e2148f2d5d6b 100644
--- a/fs/xfs/xfs_bio_io.c
+++ b/fs/xfs/xfs_bio_io.c
@@ -43,7 +43,7 @@ xfs_rw_bdev(
 			bio_copy_dev(bio, prev);
 			bio->bi_iter.bi_sector = bio_end_sector(prev);
 			bio->bi_opf = prev->bi_opf;
-			bio_chain(bio, prev);
+			bio_chain(prev, bio);

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