On Fri, Jan 12, 2018 at 06:07:01PM -0700, Liu Bo wrote:
> Bio iterated by set_bio_pages_uptodate() is raid56 internal one, so it
> will never be a BIO_CLONED bio, and since this is called by end_io
> functions, bio->bi_iter.bi_size is zero, we mustn't use
> bio_for_each_segment() as that is a no-op if bi_size is zero.
>
> Fixes: 6592e58c6b68e61f003a01ba29a3716e7e2e9484 ("Btrfs: fix write corruption due to bio cloning on raid5/6")
> Cc: <stable@xxxxxxxxxxxxxxx> # v4.12-rc6+
> Signed-off-by: Liu Bo <bo.li.liu@xxxxxxxxxx>
Tested and added to 4.16 queue, thanks.
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