Re: [PATCH] SUNRPC/backchanel: set XPT_CONG_CTRL flag for bc xprt

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Thanks!  Applying.--b.

On Tue, Mar 07, 2017 at 06:11:21AM -0500, Jeff Layton wrote:
> On Tue, 2017-03-07 at 17:22 +0800, Kinglong Mee wrote:
> > The xprt for backchannel is created separately, not in TCP/UDP code.
> > Because without the flags, the requests from NFSv41 backchannel are
> > rejected in svc_process_common(),
> > 
> > 1191         if (versp->vs_need_cong_ctrl &&
> > 1192             !test_bit(XPT_CONG_CTRL, &rqstp->rq_xprt->xpt_flags))
> > 1193                 goto err_bad_vers;
> > 
> > Fixes: 5283b03ee5 ("nfs/nfsd/sunrpc: enforce transport...")
> > Signed-off-by: Kinglong Mee <kinglongmee@xxxxxxxxx>
> > ---
> >  net/sunrpc/svcsock.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
> > index 8931e33..2b720fa 100644
> > --- a/net/sunrpc/svcsock.c
> > +++ b/net/sunrpc/svcsock.c
> > @@ -1635,6 +1635,7 @@ static struct svc_xprt *svc_bc_create_socket(struct svc_serv *serv,
> >  
> >  	xprt = &svsk->sk_xprt;
> >  	svc_xprt_init(net, &svc_tcp_bc_class, xprt, serv);
> > +	set_bit(XPT_CONG_CTRL, &svsk->sk_xprt.xpt_flags);
> >  
> >  	serv->sv_bc_xprt = xprt;
> >  
> 
> Good catch.
> 
> Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
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