[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH net-next] xen-netback: get rid of old udev related code

On 12.12.19 20:05, David Miller wrote:
From: Paul Durrant <pdurrant@xxxxxxxxxx>
Date: Thu, 12 Dec 2019 13:54:06 +0000

In the past it used to be the case that the Xen toolstack relied upon
udev to execute backend hotplug scripts. However this has not been the
case for many releases now and removal of the associated code in
xen-netback shortens the source by more than 100 lines, and removes much
complexity in the interaction with the xenstore backend state.

NOTE: xen-netback is the only xenbus driver to have a functional uevent()
       method. The only other driver to have a method at all is
       pvcalls-back, and currently pvcalls_back_uevent() simply returns 0.
       Hence this patch also facilitates further cleanup.

Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx>

If userspace ever used this stuff, I seriously doubt you can remove this
even if it hasn't been used in 5+ years.

Hmm, depends.

This has been used by Xen tools in dom0 only. If the last usage has been
in a Xen version which is no longer able to run with current Linux in
dom0 it could be removed. But I guess this would have to be a rather old
version of Xen (like 3.x?).

Paul, can you give a hint since which Xen version the toolstack no
longer relies on udev to start the hotplug scripts?


Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.