Messages in this thread | | | Date | Tue, 19 Feb 2013 09:58:03 +0100 | From | Andrew Jones <> | Subject | Re: [Xen-devel] [PATCH] xen: netback: remove redundant xenvif_put |
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On Tue, 19 Feb 2013 08:03:49 +0000 "Jan Beulich" <JBeulich@suse.com> wrote:
> >>> On 19.02.13 at 06:53, David Miller <davem@davemloft.net> wrote: > > From: Andrew Jones <drjones@redhat.com> > > Date: Mon, 18 Feb 2013 21:29:20 +0100 > > > >> netbk_fatal_tx_err() calls xenvif_carrier_off(), which does > >> a xenvif_put(). As callers of netbk_fatal_tx_err should only > >> have one reference to the vif at this time, then the xenvif_put > >> in netbk_fatal_tx_err is one too many. > >> > >> Signed-off-by: Andrew Jones <drjones@redhat.com> > > > > Applied. > > But this is wrong from all we can tell, we discussed this before > (Wei pointed to the discussion in an earlier reply). The core of > it is that the put here parallels the one in netbk_tx_err(), and > the one in xenvif_carrier_off() matches the get from > xenvif_connect() (which normally would be done on the path > coming through xenvif_disconnect()).
I see the balance described by Ian in [1] now. Sorry that I missed that previous discussion and generated this noise.
[1] http://marc.info/?l=xen-devel&m=136084174026977&w=2
drew
> > And anyway - shouldn't changes to netback require an ack from > Ian? > > Jan >
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