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SUNRPC/backchanel: set XPT_CONG_CTRL flag for bc xprt

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The xprt for backchannel is created separately, not in TCP/UDP code.  It
needs the XPT_CONG_CTRL flag set on it too--otherwise requests on the
NFSv4.1 backchannel are rjected 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@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Kinglong Mee 2017-03-07 17:22:43 +08:00 committed by J. Bruce Fields
parent c1ae3cfa0e
commit 5427290d64
1 changed files with 1 additions and 0 deletions
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net/sunrpc/svcsock.c
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@ -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;