提交 7e4359e2 编写于 作者: T Tom Tucker 提交者: J. Bruce Fields

Fix regression in NFSRDMA server

The server regression was caused by the addition of rq_next_page
(afc59400). There were a few places that
were missed with the update of the rq_respages array.
Signed-off-by: NTom Tucker <tom@ogc.us>
Tested-by: NSteve Wise <swise@ogc.us>
Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>
上级 fbb74a34
......@@ -90,6 +90,7 @@ static void rdma_build_arg_xdr(struct svc_rqst *rqstp,
sge_no++;
}
rqstp->rq_respages = &rqstp->rq_pages[sge_no];
rqstp->rq_next_page = rqstp->rq_respages + 1;
/* We should never run out of SGE because the limit is defined to
* support the max allowed RPC data length
......@@ -169,6 +170,7 @@ static int map_read_chunks(struct svcxprt_rdma *xprt,
*/
head->arg.pages[page_no] = rqstp->rq_arg.pages[page_no];
rqstp->rq_respages = &rqstp->rq_arg.pages[page_no+1];
rqstp->rq_next_page = rqstp->rq_respages + 1;
byte_count -= sge_bytes;
ch_bytes -= sge_bytes;
......@@ -276,6 +278,7 @@ static int fast_reg_read_chunks(struct svcxprt_rdma *xprt,
/* rq_respages points one past arg pages */
rqstp->rq_respages = &rqstp->rq_arg.pages[page_no];
rqstp->rq_next_page = rqstp->rq_respages + 1;
/* Create the reply and chunk maps */
offset = 0;
......@@ -520,13 +523,6 @@ static int rdma_read_xdr(struct svcxprt_rdma *xprt,
for (ch_no = 0; &rqstp->rq_pages[ch_no] < rqstp->rq_respages; ch_no++)
rqstp->rq_pages[ch_no] = NULL;
/*
* Detach res pages. If svc_release sees any it will attempt to
* put them.
*/
while (rqstp->rq_next_page != rqstp->rq_respages)
*(--rqstp->rq_next_page) = NULL;
return err;
}
......@@ -550,7 +546,7 @@ static int rdma_read_complete(struct svc_rqst *rqstp,
/* rq_respages starts after the last arg page */
rqstp->rq_respages = &rqstp->rq_arg.pages[page_no];
rqstp->rq_next_page = &rqstp->rq_arg.pages[page_no];
rqstp->rq_next_page = rqstp->rq_respages + 1;
/* Rebuild rq_arg head and tail. */
rqstp->rq_arg.head[0] = head->arg.head[0];
......
......@@ -625,6 +625,7 @@ static int send_reply(struct svcxprt_rdma *rdma,
if (page_no+1 >= sge_no)
ctxt->sge[page_no+1].length = 0;
}
rqstp->rq_next_page = rqstp->rq_respages + 1;
BUG_ON(sge_no > rdma->sc_max_sge);
memset(&send_wr, 0, sizeof send_wr);
ctxt->wr_op = IB_WR_SEND;
......
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