[Xen-devel] Re: [PATCH] have udev create the device for blktap

To:	"Steven Rostedt" <srostedt@xxxxxxxxxx>
Subject:	[Xen-devel] Re: [PATCH] have udev create the device for blktap
From:	"Andrew Warfield" <andrew.warfield@xxxxxxxxxxxx>
Date:	Thu, 28 Sep 2006 14:04:36 -0700
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date:	Thu, 28 Sep 2006 17:47:31 -0700
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Ships in the night, and so on -- as I posted concurrently with this, I
applied the patch. ;)

Anyhow, thanks for the clarifications, and I agree with your points
about evntchn moving to a dynamic minor and the tap interrogation
moving from /proc/devices to /sys -- that would all be great.

> Also, on the blocktap side, it would be nice (in a later patch) to
> kill the static allocation of the data-path devices and allocate them
> on demand, as you do with the associed sysfs entries.

That would not be a problem.  The tap devices could be stored in a link
list. The only time you would need to search the list to find the tap
device, is really on open.  You would also do it to look for a free
device, but that search is already done.

I'll take a look into that too.


Perfect -- this would be a very welcome patch.

Thanks again!
a.

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