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svc: Add xpo_prep_reply_hdr

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Some transports add fields to the RPC header for replies, e.g. the TCP
record length. This function is called when preparing the reply header
to allow each transport to add whatever fields it requires.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Acked-by: Neil Brown <neilb@suse.de>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Greg Banks <gnb@sgi.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Tom Tucker
2007-12-30 21:07:29 -06:00
committed by J. Bruce Fields
parent 755cceaba7
commit e831fe65b1
3 changed files with 21 additions and 3 deletions
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6
net/sunrpc/svc.c
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@@ -840,9 +840,9 @@ svc_process(struct svc_rqst *rqstp)
rqstp->rq_res.tail[0].iov_len = 0;
/* Will be turned off only in gss privacy case: */
rqstp->rq_splice_ok = 1;
/* tcp needs a space for the record length... */
if (rqstp->rq_prot == IPPROTO_TCP)
svc_putnl(resv, 0);
/* Setup reply header */
rqstp->rq_xprt->xpt_ops->xpo_prep_reply_hdr(rqstp);
rqstp->rq_xid = svc_getu32(argv);
svc_putu32(resv, rqstp->rq_xid);