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

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On Fri, Mar 31, 2017 at 04:44:43PM -0400, Olga Kornievskaia wrote:
> Hey Bruce,
> 
> When is this going to go upstream?

I have it queued up for 4.11.  I'm hoping to send out a pull request
tonight, since I'll be taking most of next week off.

--b.

> 
> On Thu, Mar 9, 2017 at 3:26 PM, J. Bruce Fields <bfields@xxxxxxxxxxxx> wrote:
> > 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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