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From: Mikael Pettersson <mikpe@csd.uu.se>
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Date: Mon, 23 Sep 2002 22:04:05 +0200
To: Alexander Viro <viro@math.psu.edu>
Cc: Jens Axboe <axboe@suse.de>, Linus Torvalds <torvalds@transmeta.com>,
       linux-kernel@vger.kernel.org
Subject: Re: 2.5.37 broke the floppy driver
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Alexander Viro writes:
 > 
 > 
 > On Mon, 23 Sep 2002, Mikael Pettersson wrote:
 > 
 > > With O100-get_gendisk-C38 the oops is cured, but the floppy size is
 > > still wrong. Freshly booted, dd if=/dev/fd0H1440 bs=72k of=/dev/null
 > > reads only 720K instead of 1440K. Same thing on write: trying to
 > > write more than 720K results in an ENOSPC error.
 > 
 > 
 > Arrrgh.  O/O101-floppy_sizes-C38 and it's also my fsckup - missed the
 > size in kilobytes/size in sectors.  Fortunately that kind of crap is
 > over - blk_size[] is no more...

With that patch the /dev/fd0H1440 device now seems to work. However,
the /dev/fd0 (autosensing) device gets its very first read or write
after boot wrong. For example, dd if=/dev/fd0 bs=8k count=1 of=/dev/null
only reads 4096 bytes, and likewise a write will only write 4096 bytes
before reporting ENOSPC. Accesses after the first work though.
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