xprtrdma: Cull dprintk() call sites

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>

diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c
index aae2eb1..dea831e 100644 (file)
--- a/net/sunrpc/xprtrdma/backchannel.c
+++ b/net/sunrpc/xprtrdma/backchannel.c
@@ -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;
 

diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 8de0b9f..5a58769 100644 (file)
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -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++;

diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 89e11f9..6a57033 100644 (file)
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -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);

diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 51e09ae..85c51b8 100644 (file)
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -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;
 }