From: Anthony Liguori <aliguori@us.ibm.com>
To: Adam Heath <doogie@brainfood.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Mark Williamson <mark.williamson@cl.cam.ac.uk>
Subject: Re: Disk naming (Was Re: [PATCH] Guest boot loadersupport [1/2])
Date: Fri, 15 Apr 2005 12:57:26 -0500 [thread overview]
Message-ID: <42600086.6020306@us.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.58.0504151232170.1781@gradall.private.brainfood.com>
Adam Heath wrote:
>It does. So, it's the blkback in dom0 that requires a device node. How about
>it the blkback were extended to support files in filesystems?
>
>
I think the hardest thing to deal with is the fact that the control
messages are limited to 60 bytes meaning that if you changed the
be_vbd_create message to pass file names instead of device types you'd
have to support continuations to suport filenames that are > ~40 bytes long.
The registry will make this a lot easier since the blkif_be device could
just read a filename out of the registry. I've thought about changing
the blkif_be driver to be able to access the file ops directly before
and this has been the limiting factor in my mind (unless someone else
has a more creative solution :-)).
Regards,
Anthony Liguori
>_______________________________________________
>Xen-devel mailing list
>Xen-devel@lists.xensource.com
>http://lists.xensource.com/xen-devel
>
>
>
next prev parent reply other threads:[~2005-04-15 17:57 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-14 20:43 Disk naming (Was Re: [PATCH] Guest boot loadersupport [1/2]) Ian Pratt
2005-04-14 20:52 ` Jeremy Katz
2005-04-14 21:59 ` Gerd Knorr
2005-04-14 22:10 ` Adam Heath
2005-04-15 1:51 ` Andrew Theurer
2005-04-15 13:32 ` Philip R Auld
2005-04-14 23:24 ` Mark Williamson
2005-04-14 23:42 ` Adam Heath
2005-04-14 23:43 ` Mark Williamson
2005-04-15 16:18 ` Adam Heath
2005-04-15 16:43 ` Mark Williamson
2005-04-15 17:33 ` Adam Heath
2005-04-15 17:33 ` Mark Williamson
2005-04-15 17:55 ` Adam Heath
2005-04-15 17:56 ` Mark Williamson
2005-04-15 20:08 ` Adam Heath
2005-04-15 20:14 ` Mark Williamson
2005-04-15 20:45 ` Anthony Liguori
2005-04-15 18:02 ` Andrew Warfield
2005-04-15 17:57 ` Anthony Liguori [this message]
2005-04-15 20:07 ` Adam Heath
2005-04-15 20:16 ` Mark Williamson
2005-04-15 20:46 ` Adam Heath
2005-04-15 20:29 ` Mark Williamson
2005-04-15 21:05 ` Anthony Liguori
2005-04-15 20:40 ` Anthony Liguori
2005-04-15 20:48 ` Adam Heath
2005-04-15 20:47 ` Anthony Liguori
2005-04-15 13:58 ` Philip R Auld
-- strict thread matches above, loose matches on Subject: below --
2005-04-15 21:44 Disk naming (Was Re: [PATCH] Guest boot loadersupport[1/2]) Ian Pratt
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