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From: James Bottomley <James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>
To: Greg KH <greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
Cc: Hans de Goede <j.w.r.degoede-fbo2DhPpy/Q@public.gmane.org>,
	Matthew Dharm
	<mdharm-scsi-JGfshJpz5UybPZpvUQj5UqxOck334EZe@public.gmane.org>,
	Boaz Harrosh <bharrosh-C4P08NqkoRlBDgjK7y7TUQ@public.gmane.org>,
	USB Storage list
	<usb-storage-ijkIwGHArpdIPJnuZ7Njw4oP9KaGy4wf@public.gmane.org>,
	USB development list
	<linux-usb-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
	David Brown
	<usb-storage2-GijAUarxTbMdnm+yROfE0A@public.gmane.org>,
	linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: PATCH: usb-storage-set-last-sector-bug-flag.patch
Date: Sun, 20 Jan 2008 15:03:28 -0600	[thread overview]
Message-ID: <1200863008.3105.30.camel@localhost.localdomain> (raw)
In-Reply-To: <20080120205625.GB28842-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>


On Sun, 2008-01-20 at 12:56 -0800, Greg KH wrote:
> On Sun, Jan 20, 2008 at 11:27:29AM +0100, Hans de Goede wrote:
> > Hi all,
> >
> > This patch sets the last_sector_bug flag to 1 for all USB disks. This is
> > needed to makes the cardreader on various HP multifunction printers work.
> >
> > Since the performance impact is negible we set this flag for all USB disks 
> > to avoid an unusual_devs.h nightmare.
> 
> Oh great, now my "working just fine" USB devices, which happen to have
> data in the last sector, suddenly stop working.
> 
> That's not acceptable :(

I don't see how this will happen, might you not be confusing this change
(which allows access to the last sector, just insists that it be
accessed by a single sector read) with US_FL_FIX_CAPACITY which is for
devices that report having one more sectors than they actually have and
therefore adjusts the access limits down by one?

James

  parent reply	other threads:[~2008-01-20 21:03 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-20 10:27 PATCH: usb-storage-set-last-sector-bug-flag.patch Hans de Goede
2008-01-20 20:56 ` Greg KH
     [not found]   ` <20080120205625.GB28842-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2008-01-20 21:03     ` James Bottomley [this message]
     [not found]       ` <1200863008.3105.30.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2008-01-20 21:25         ` Hans de Goede
2008-01-20 21:39         ` [usb-storage] " Guillaume Bedot
2008-01-20 21:45     ` Alan Stern
2008-01-23 18:12       ` Greg KH
     [not found]         ` <20080123181239.GA21836-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2008-01-23 18:39           ` James Bottomley
2008-01-23 18:50             ` Greg KH
2008-01-24 17:07         ` Stefan Richter
2008-01-24 17:21           ` Greg KH
2008-01-25 17:12             ` James Bottomley
2008-01-25 19:23               ` Matthew Dharm
     [not found]           ` <4798C5B4.1000208-MtYdepGKPcBMYopoZt5u/LNAH6kLmebB@public.gmane.org>
2008-01-24 17:22             ` Stefan Richter
     [not found] ` <47932211.90105-fbo2DhPpy/Q@public.gmane.org>
2008-01-22  8:26   ` [usb-storage] " Guillaume Bedot

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