linux-kernel - Re: [PATCHv2] usb: gadget: storage: optional SCSI WRITE FUA bit

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Message-ID: <4C401AA3.8010806@nokia.com>
Date:	Fri, 16 Jul 2010 11:38:59 +0300
From:	Roger Quadros <roger.quadros@...ia.com>
To:	"me@...ipebalbi.com" <me@...ipebalbi.com>
CC:	ext Andy Shevchenko <andy.shevchenko@...il.com>,
	Micha?? Nazarewicz <m.nazarewicz@...sung.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Shevchenko Andriy (EXT-Teleca/Helsinki)" 
	<ext-andriy.shevchenko@...ia.com>,
	"Karpov Denis.2 (EXT-Teleca/Helsinki)" <ext-denis.2.karpov@...ia.com>,
	"Hunter Adrian (Nokia-MS/Helsinki)" <adrian.hunter@...ia.com>,
	Alan Stern <stern@...land.harvard.edu>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: Re: [PATCHv2] usb: gadget: storage: optional SCSI WRITE FUA bit

On 07/16/2010 10:54 AM, ext Felipe Balbi wrote:
> Hi,
>
> On Wed, Jul 14, 2010 at 04:55:33PM +0300, Roger Quadros wrote:
>> file_storage driver does not deal with partitions. only mediums.
>
> it deals with backing files, no matter if it's a medium, partition or a
> file on a file system (using a loop-device).
>
True, you are talking from the device side of the g_files_storage where it 
accesses backing files, I was talking from the USB side, where g_file_storage 
exposes LUNs or Mediums and not partitions.

br,
-roger
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