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xprtrdma: Cull dprintk() call sites

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Clean up: Remove dprintk() call sites that report rare or impossible
errors. Leave a few that display high-value low noise status
information.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2018-12-19 10:59:39 -05:00 committed by Anna Schumaker
parent 92f4433e56
commit ddbb347f0c
4 changed files with 19 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
net/sunrpc/xprtrdma/backchannel.c
View File

@ -235,9 +235,6 @@ void xprt_rdma_bc_free_rqst(struct rpc_rqst *rqst)
struct rpcrdma_req *req = rpcr_to_rdmar(rqst);
struct rpc_xprt *xprt = rqst->rq_xprt;
dprintk("RPC: %s: freeing rqst %p (req %p)\n",
__func__, rqst, req);
rpcrdma_recv_buffer_put(req->rl_reply);
req->rl_reply = NULL;

17
net/sunrpc/xprtrdma/rpc_rdma.c
View File

@ -1186,17 +1186,20 @@ rpcrdma_decode_error(struct rpcrdma_xprt *r_xprt, struct rpcrdma_rep *rep,
p = xdr_inline_decode(xdr, 2 * sizeof(*p));
if (!p)
break;
dprintk("RPC: %5u: %s: server reports version error (%u-%u)\n",
rqst->rq_task->tk_pid, __func__,
be32_to_cpup(p), be32_to_cpu(*(p + 1)));
dprintk("RPC: %s: server reports "
"version error (%u-%u), xid %08x\n", __func__,
be32_to_cpup(p), be32_to_cpu(*(p + 1)),
be32_to_cpu(rep->rr_xid));
break;
case err_chunk:
dprintk("RPC: %5u: %s: server reports header decoding error\n",
rqst->rq_task->tk_pid, __func__);
dprintk("RPC: %s: server reports "
"header decoding error, xid %08x\n", __func__,
be32_to_cpu(rep->rr_xid));
break;
default:
dprintk("RPC: %5u: %s: server reports unrecognized error %d\n",
rqst->rq_task->tk_pid, __func__, be32_to_cpup(p));
dprintk("RPC: %s: server reports "
"unrecognized error %d, xid %08x\n", __func__,
be32_to_cpup(p), be32_to_cpu(rep->rr_xid));
}
r_xprt->rx_stats.bad_reply_count++;

33
net/sunrpc/xprtrdma/transport.c
View File

@ -318,17 +318,12 @@ xprt_setup_rdma(struct xprt_create *args)
struct sockaddr *sap;
int rc;
if (args->addrlen > sizeof(xprt->addr)) {
dprintk("RPC: %s: address too large\n", __func__);
if (args->addrlen > sizeof(xprt->addr))
return ERR_PTR(-EBADF);
}
xprt = xprt_alloc(args->net, sizeof(struct rpcrdma_xprt), 0, 0);
if (xprt == NULL) {
dprintk("RPC: %s: couldn't allocate rpcrdma_xprt\n",
__func__);
if (!xprt)
return ERR_PTR(-ENOMEM);
}
/* 60 second timeout, no retries */
xprt->timeout = &xprt_rdma_default_timeout;
@ -445,8 +440,6 @@ void xprt_rdma_close(struct rpc_xprt *xprt)
might_sleep();
dprintk("RPC: %s: closing xprt %p\n", __func__, xprt);
/* Prevent marshaling and sending of new requests */
xprt_clear_connected(xprt);
@ -853,24 +846,15 @@ static struct xprt_class xprt_rdma = {
void xprt_rdma_cleanup(void)
{
int rc;
dprintk("RPCRDMA Module Removed, deregister RPC RDMA transport\n");
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
if (sunrpc_table_header) {
unregister_sysctl_table(sunrpc_table_header);
sunrpc_table_header = NULL;
}
#endif
rc = xprt_unregister_transport(&xprt_rdma);
if (rc)
dprintk("RPC: %s: xprt_unregister returned %i\n",
__func__, rc);
rc = xprt_unregister_transport(&xprt_rdma_bc);
if (rc)
dprintk("RPC: %s: xprt_unregister(bc) returned %i\n",
__func__, rc);
xprt_unregister_transport(&xprt_rdma);
xprt_unregister_transport(&xprt_rdma_bc);
}
int xprt_rdma_init(void)
@ -887,15 +871,6 @@ int xprt_rdma_init(void)
return rc;
}
dprintk("RPCRDMA Module Init, register RPC RDMA transport\n");
dprintk("Defaults:\n");
dprintk("\tSlots %d\n"
"\tMaxInlineRead %d\n\tMaxInlineWrite %d\n",
xprt_rdma_slot_table_entries,
xprt_rdma_max_inline_read, xprt_rdma_max_inline_write);
dprintk("\tPadding 0\n\tMemreg %d\n", xprt_rdma_memreg_strategy);
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
if (!sunrpc_table_header)
sunrpc_table_header = register_sysctl_table(sunrpc_table);

34
net/sunrpc/xprtrdma/verbs.c
View File

@ -309,22 +309,15 @@ rpcrdma_create_id(struct rpcrdma_xprt *xprt, struct rpcrdma_ia *ia)
id = rdma_create_id(xprt->rx_xprt.xprt_net, rpcrdma_cm_event_handler,
xprt, RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(id)) {
rc = PTR_ERR(id);
dprintk("RPC: %s: rdma_create_id() failed %i\n",
__func__, rc);
if (IS_ERR(id))
return id;
}
ia->ri_async_rc = -ETIMEDOUT;
rc = rdma_resolve_addr(id, NULL,
(struct sockaddr *)&xprt->rx_xprt.addr,
RDMA_RESOLVE_TIMEOUT);
if (rc) {
dprintk("RPC: %s: rdma_resolve_addr() failed %i\n",
__func__, rc);
if (rc)
goto out;
}
rc = wait_for_completion_interruptible_timeout(&ia->ri_done, wtimeout);
if (rc < 0) {
trace_xprtrdma_conn_tout(xprt);
@ -337,11 +330,8 @@ rpcrdma_create_id(struct rpcrdma_xprt *xprt, struct rpcrdma_ia *ia)
ia->ri_async_rc = -ETIMEDOUT;
rc = rdma_resolve_route(id, RDMA_RESOLVE_TIMEOUT);
if (rc) {
dprintk("RPC: %s: rdma_resolve_route() failed %i\n",
__func__, rc);
if (rc)
goto out;
}
rc = wait_for_completion_interruptible_timeout(&ia->ri_done, wtimeout);
if (rc < 0) {
trace_xprtrdma_conn_tout(xprt);
@ -540,8 +530,6 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia,
1, IB_POLL_WORKQUEUE);
if (IS_ERR(sendcq)) {
rc = PTR_ERR(sendcq);
dprintk("RPC: %s: failed to create send CQ: %i\n",
__func__, rc);
goto out1;
}
@ -550,8 +538,6 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia,
0, IB_POLL_WORKQUEUE);
if (IS_ERR(recvcq)) {
rc = PTR_ERR(recvcq);
dprintk("RPC: %s: failed to create recv CQ: %i\n",
__func__, rc);
goto out2;
}
@ -691,11 +677,8 @@ rpcrdma_ep_reconnect(struct rpcrdma_xprt *r_xprt, struct rpcrdma_ep *ep,
}
err = rdma_create_qp(id, ia->ri_pd, &ep->rep_attr);
if (err) {
dprintk("RPC: %s: rdma_create_qp returned %d\n",
__func__, err);
if (err)
goto out_destroy;
}
/* Atomically replace the transport's ID and QP. */
rc = 0;
@ -726,8 +709,6 @@ retry:
dprintk("RPC: %s: connecting...\n", __func__);
rc = rdma_create_qp(ia->ri_id, ia->ri_pd, &ep->rep_attr);
if (rc) {
dprintk("RPC: %s: rdma_create_qp failed %i\n",
__func__, rc);
rc = -ENETUNREACH;
goto out_noupdate;
}
@ -749,11 +730,8 @@ retry:
rpcrdma_post_recvs(r_xprt, true);
rc = rdma_connect(ia->ri_id, &ep->rep_remote_cma);
if (rc) {
dprintk("RPC: %s: rdma_connect() failed with %i\n",
__func__, rc);
if (rc)
goto out;
}
wait_event_interruptible(ep->rep_connect_wait, ep->rep_connected != 0);
if (ep->rep_connected <= 0) {
@ -1088,8 +1066,6 @@ rpcrdma_create_rep(struct rpcrdma_xprt *r_xprt, bool temp)
out_free:
kfree(rep);
out:
dprintk("RPC: %s: reply buffer %d alloc failed\n",
__func__, rc);
return rc;
}