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svcrdma: Eliminate return value for svc_rdma_send_error_msg() 

Like svc_rdma_send_error(), have svc_rdma_send_error_msg() handle
any error conditions internally, rather than duplicating that
recovery logic at every call site.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2020-03-25 14:38:07 -04:00
parent 4f200bd8af
commit 605c61bee5
1 changed files with 14 additions and 11 deletions
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25
net/sunrpc/xprtrdma/svc_rdma_sendto.c
View File

@ -810,10 +810,10 @@ static int svc_rdma_send_reply_msg(struct svcxprt_rdma *rdma,
* *
* Remote Invalidation is skipped for simplicity. * Remote Invalidation is skipped for simplicity.
*/ */
static int svc_rdma_send_error_msg(struct svcxprt_rdma *rdma, static void svc_rdma_send_error_msg(struct svcxprt_rdma *rdma,
struct svc_rdma_send_ctxt *sctxt, struct svc_rdma_send_ctxt *sctxt,
struct svc_rdma_recv_ctxt *rctxt, struct svc_rdma_recv_ctxt *rctxt,
int status) int status)
{ {
__be32 *rdma_argp = rctxt->rc_recv_buf; __be32 *rdma_argp = rctxt->rc_recv_buf;
__be32 *p; __be32 *p;
@ -825,7 +825,7 @@ static int svc_rdma_send_error_msg(struct svcxprt_rdma *rdma,
p = xdr_reserve_space(&sctxt->sc_stream, p = xdr_reserve_space(&sctxt->sc_stream,
rpcrdma_fixed_maxsz * sizeof(*p)); rpcrdma_fixed_maxsz * sizeof(*p));
if (!p) if (!p)
return -ENOMSG; goto put_ctxt;
*p++ = *rdma_argp; *p++ = *rdma_argp;
*p++ = *(rdma_argp + 1); *p++ = *(rdma_argp + 1);
@ -836,7 +836,7 @@ static int svc_rdma_send_error_msg(struct svcxprt_rdma *rdma,
case -EPROTONOSUPPORT: case -EPROTONOSUPPORT:
p = xdr_reserve_space(&sctxt->sc_stream, 3 * sizeof(*p)); p = xdr_reserve_space(&sctxt->sc_stream, 3 * sizeof(*p));
if (!p) if (!p)
return -ENOMSG; goto put_ctxt;
*p++ = err_vers; *p++ = err_vers;
*p++ = rpcrdma_version; *p++ = rpcrdma_version;
@ -846,7 +846,7 @@ static int svc_rdma_send_error_msg(struct svcxprt_rdma *rdma,
default: default:
p = xdr_reserve_space(&sctxt->sc_stream, sizeof(*p)); p = xdr_reserve_space(&sctxt->sc_stream, sizeof(*p));
if (!p) if (!p)
return -ENOMSG; goto put_ctxt;
*p = err_chunk; *p = err_chunk;
trace_svcrdma_err_chunk(*rdma_argp); trace_svcrdma_err_chunk(*rdma_argp);
@ -855,7 +855,12 @@ static int svc_rdma_send_error_msg(struct svcxprt_rdma *rdma,
sctxt->sc_send_wr.num_sge = 1; sctxt->sc_send_wr.num_sge = 1;
sctxt->sc_send_wr.opcode = IB_WR_SEND; sctxt->sc_send_wr.opcode = IB_WR_SEND;
sctxt->sc_sges[0].length = sctxt->sc_hdrbuf.len; sctxt->sc_sges[0].length = sctxt->sc_hdrbuf.len;
return svc_rdma_send(rdma, &sctxt->sc_send_wr); if (svc_rdma_send(rdma, &sctxt->sc_send_wr))
goto put_ctxt;
return;
put_ctxt:
svc_rdma_send_ctxt_put(rdma, sctxt);
} }
/** /**
@ -950,9 +955,7 @@ int svc_rdma_sendto(struct svc_rqst *rqstp)
* of previously posted RDMA Writes. * of previously posted RDMA Writes.
*/ */
svc_rdma_save_io_pages(rqstp, sctxt); svc_rdma_save_io_pages(rqstp, sctxt);
ret = svc_rdma_send_error_msg(rdma, sctxt, rctxt, ret); svc_rdma_send_error_msg(rdma, sctxt, rctxt, ret);
if (ret < 0)
goto err1;
return 0; return 0;
err1: err1: