linux-kernel - Re: [PATCH 04/10] [SG] Update drivers to use sg helpers

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Date:	Tue, 23 Oct 2007 09:14:07 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Heiko Carstens <heiko.carstens@...ibm.com>
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	mingo@...e.hu, Christoph Schmitt <schmichr@...ibm.com>,
	Swen Schillig <swen@...t.ibm.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	linux-s390@...r.kernel.org
Subject: Re: [PATCH 04/10] [SG] Update drivers to use sg helpers

On Tue, Oct 23 2007, Heiko Carstens wrote:
> On Mon, Oct 22, 2007 at 08:10:58PM +0200, Jens Axboe wrote:
> > Signed-off-by: Jens Axboe <jens.axboe@...cle.com>
> > ---
> 
> You forgot s390's zfcp driver. But unfortunately the trivial fix below
> doesn't work. No more I/O possible. Swen and/or Christof could you
> provide a correct fix for this please? Thanks!
> 
> ---
>  drivers/s390/scsi/zfcp_def.h |    4 ++--
>  drivers/s390/scsi/zfcp_erp.c |    4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> Index: linux-2.6/drivers/s390/scsi/zfcp_def.h
> ===================================================================
> --- linux-2.6.orig/drivers/s390/scsi/zfcp_def.h
> +++ linux-2.6/drivers/s390/scsi/zfcp_def.h
> @@ -63,7 +63,7 @@
>  static inline void *
>  zfcp_sg_to_address(struct scatterlist *list)
>  {
> -	return (void *) (page_address(list->page) + list->offset);
> +	return (void *) (page_address(sg_page(list) + list->offset));
>  }

return sg_virt(list); would be better.

I'll fix up the driver, no worries.

-- 
Jens Axboe

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