linux-kernel - Re: [RFC][PATCH] libata: enable SATA disk fua detection on default

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Date:	Wed, 4 Jul 2012 10:47:15 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	Michael Tokarev <mjt@....msk.ru>
Cc:	Jeff Garzik <jeff@...zik.org>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, linux-scsi@...r.kernel.org,
	Zheng Liu <wenqing.lz@...bao.com>
Subject: Re: [RFC][PATCH] libata: enable SATA disk fua detection on default

Hi Michael,

On Wed, Jul 04, 2012 at 12:11:36AM +0400, Michael Tokarev wrote:
> On 03.07.2012 13:04, Zheng Liu wrote:
> > Hi Jeff,
> > 
> > Sorry for bothering you.  Could you please review this patch, or give me
> > some feedbacks.  If this patch can be applied, I can rebase it to the
> > lastest version of mainline kernel.  Thank you.
> []
> >> -int libata_fua = 0;
> >> +int libata_fua = 1;
> 
> I guess it can be enabled after LOTS of testing of various drives out
> there, which shows that no current drives have issues with FUA anymore,
> and after building a black-list of devices which misbehave.  It is quite
> a big project, I think.  But what it gives us in return?
> 
> (I've no idea if this is the right answer, speaking of myself only)

Thanks for the reply.  Indeed it is quite a big project but we enable
FUA feature for SAS disk.  Is there any differences?

Regards,
Zheng
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