lkml.org 
[lkml]   [2019]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [Xen-devel] [PATCH net-next] xen-netback: get rid of old udev related code
From
Date
On 12.12.19 20:05, David Miller wrote:
> From: Paul Durrant <pdurrant@amazon.com>
> 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@amazon.com>
>
> 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?


Juergen

\
 
 \ /
  Last update: 2019-12-13 06:41    [W:0.099 / U:0.208 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site