Re: linux-next: manual merge of the block tree with the xfs tree

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Hi Roger,

On Wed, 2 Sep 2015 10:45:29 +0100 Roger Willcocks <roger@xxxxxxxxxxxxxxxx> wrote:
>
> On 2 Sep 2015, at 03:16, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> 
> > Today's linux-next merge of the block tree got a conflict in:
> > 
> >  fs/xfs/xfs_aops.c
> > 
> > between commit:
> > 
> >  c9eb256eda44 ("xfs: return errors from partial I/O failures to files")
> > 
> > from the xfs tree and commit:
> > 
> >  4246a0b63bd8 ("block: add a bi_error field to struct bio")
> > 
> > from the block tree.
> > 
> > I fixed it up (I think - see below) and can carry the fix as necessary
> > (no action is required).
> > 
> > -- 
> > Cheers,
> > Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx
> > 
> > diff --cc fs/xfs/xfs_aops.c
> > index c8637073ef25,c77499bcbd7a..000000000000
> > --- a/fs/xfs/xfs_aops.c
> > +++ b/fs/xfs/xfs_aops.c
> > @@@ -354,8 -355,7 +353,8 @@@ xfs_end_bio
> >  {
> >  	xfs_ioend_t		*ioend = bio->bi_private;
> > 
> > - 	if (!ioend->io_error && !test_bit(BIO_UPTODATE, &bio->bi_flags))
> > - 		ioend->io_error = error;
> > -	ioend->io_error = bio->bi_error;
> > ++	if (!ioend->io_error)
> > ++		ioend->io_error = bio->bi_error;
> > 
> >  	/* Toss bio and pass work off to an xfsdatad thread */
> >  	bio->bi_private = NULL;
> > 
> > 
> 
> This is incorrect; it can clear an earlier error status. It should probably read:
> 
>  	if (!ioend->io_error && bio->bi_error)
>  		ioend->io_error = bio->bi_error;

Thanks, I will use that from tomorrow.

-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx
--
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