Re: [PATCHv2] hv_set_ifconfig.sh double check before setting ip

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On Mon, Aug 28, 2017 at 03:56:44PM +0000, Haiyang Zhang wrote:
> 
> 
> > -----Original Message-----
> > From: Stephen Hemminger [mailto:stephen@xxxxxxxxxxxxxxxxxx]
> > Sent: Monday, August 28, 2017 11:16 AM
> > To: Eduardo Otubo <otubo@xxxxxxxxxx>
> > Cc: linux-kernel@xxxxxxxxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxxxx; Haiyang
> > Zhang <haiyangz@xxxxxxxxxxxxx>; Stephen Hemminger
> > <sthemmin@xxxxxxxxxxxxx>; David Miller <davem@xxxxxxxxxxxxx>
> > Subject: Re: [PATCHv2] hv_set_ifconfig.sh double check before setting ip
> > 
> > On Mon, 28 Aug 2017 12:01:21 +0200
> > Eduardo Otubo <otubo@xxxxxxxxxx> wrote:
> > 
> > > v2: The script is now a little bit safer so it doesn't conflicts with
> > > network daemon trying to set configurations at the same time.
> > >
> > > This patch fixes the behavior of the hv_set_ifconfig script when
> > setting
> > > the interface ip. Sometimes the interface has already been configured
> > by
> > > network daemon, in this case hv_set_ifconfig causes "RTNETLINK: file
> > > exists error"; in order to avoid this error this patch makes sure
> > double
> > > checks the interface before trying anything.
> > >
> > > Signed-off-by: Eduardo Otubo <otubo@xxxxxxxxxx>
> > 
> > Adding new dependency on systemd is not going to make this script
> > even less useful.  I wonder why the script still exists at all? Most of
> > the
> > Linux distro's can already setup HV networking without it.
> > 

Also, this script is meant to run only on RHEL guests, as written on
the header of this very same file.

-- 
Eduardo Otubo
Senior Software Engineer @ RedHat
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