From patchwork Fri May 1 17:40:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever X-Patchwork-Id: 11523081 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2F57D81 for ; Fri, 1 May 2020 17:41:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1790224953 for ; Fri, 1 May 2020 17:41:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="U49FcE/u" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730347AbgEARlB (ORCPT ); Fri, 1 May 2020 13:41:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33834 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1729572AbgEARlB (ORCPT ); Fri, 1 May 2020 13:41:01 -0400 Received: from mail-qv1-xf44.google.com (mail-qv1-xf44.google.com [IPv6:2607:f8b0:4864:20::f44]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3056C061A0C; Fri, 1 May 2020 10:41:00 -0700 (PDT) Received: by mail-qv1-xf44.google.com with SMTP id fb4so5082984qvb.7; Fri, 01 May 2020 10:41:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:subject:from:to:date:message-id:in-reply-to:references :user-agent:mime-version:content-transfer-encoding; bh=RdAX8caYJ0iXy3SCEZHENL/3iYUYiev43YHvBxvtV8I=; b=U49FcE/uMEaOm5bS2c3tdknrgPqtk9hz1umngR8R1649u/gMVLNPyJVOvA2Zbge8Hd ndFzmlhdfkFijBiqsLVDb3kTx8J9Fqh1bBLKX0IjmGaEfv4+x683Er9Ug5qJzhVNO+V6 cBlKcYua97vZOZRNgIyEBMEzx5uClzLVRNBBEk/WZ4azo/+TJAogj8SdT29YwqTmooHN AWoG9hJtcQXPFrnkPC3Jum1WlbnmbiyAjEQ6dTxG/w02CrKILT1jcZ9fe7vMn2odCEW8 3+WZnr014MmMfrukmDAxaOtwjjKn4ZaFnKsbdTM3jc/qdBSs9wt9LpkuNdmd4ny3XsV9 /feg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:subject:from:to:date:message-id :in-reply-to:references:user-agent:mime-version :content-transfer-encoding; bh=RdAX8caYJ0iXy3SCEZHENL/3iYUYiev43YHvBxvtV8I=; b=ngMdJcrS4Yuu38BWEjF6Wabtv2toukCLAXaBsK0V80Tiu1cjGOzkOQVIeG1FttXled hCTWugMDbPie+tBOL/CLKcVUl59++KmB4sLVNcQZIRtLSvHUrS8qMYwm+9DnUcoY8qkt DSQpjqe6xCUZkgK+KIBOyZMY+SCX2TO5kvzsAkV7e0+obdKVyVmVb4mPwvKaF2yKTELi lvc3NNZp8K1KWtfIwj7q/c12mMu+uzOA/lXmVxZ6x/qc+1XTMvyYOIw0rrYYJsdPmRbt JVBGJYoSVW7ewvMdc5SM5EBU2MKvJsHiQs0Z9V09jJ7aP5RC3NpchdD2j7QzUpumSt6m S5kA== X-Gm-Message-State: AGi0PuY9o7iwMdd/m3bcgMWPp3iH+xQ1Q5yfFA0sKkro4TPAerCq9I02 kkBto+8SDomvZpdvLBPEOKvJ1wTZ X-Google-Smtp-Source: APiQypL/SiUpoKaEr/Q9PHYNBA6A0wZoHp/PGxGp5xLTLINpGYoFF+KvqyDEXmEC9Ybow+ak2vQmig== X-Received: by 2002:a0c:f84b:: with SMTP id g11mr4770792qvo.155.1588354859981; Fri, 01 May 2020 10:40:59 -0700 (PDT) Received: from gateway.1015granger.net (c-68-61-232-219.hsd1.mi.comcast.net. [68.61.232.219]) by smtp.gmail.com with ESMTPSA id t14sm3076446qtj.71.2020.05.01.10.40.59 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 01 May 2020 10:40:59 -0700 (PDT) Received: from klimt.1015granger.net (klimt.1015granger.net [192.168.1.55]) by gateway.1015granger.net (8.14.7/8.14.7) with ESMTP id 041HewV3026780; Fri, 1 May 2020 17:40:58 GMT Subject: [PATCH v1 6/7] svcrdma: Remove backchannel dprintk call sites From: Chuck Lever To: linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org Date: Fri, 01 May 2020 13:40:58 -0400 Message-ID: <20200501174058.3899.54831.stgit@klimt.1015granger.net> In-Reply-To: <20200501173903.3899.31567.stgit@klimt.1015granger.net> References: <20200501173903.3899.31567.stgit@klimt.1015granger.net> User-Agent: StGit/0.22-20-geafe MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Clean up. Signed-off-by: Chuck Lever --- net/sunrpc/xprtrdma/svc_rdma_backchannel.c | 48 +++------------------------- 1 file changed, 5 insertions(+), 43 deletions(-) diff --git a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c index b174f3b109a5..1ee73f7cf931 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c +++ b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c @@ -10,10 +10,6 @@ #include "xprt_rdma.h" #include -#define RPCDBG_FACILITY RPCDBG_SVCXPRT - -#undef SVCRDMA_BACKCHANNEL_DEBUG - /** * svc_rdma_handle_bc_reply - Process incoming backchannel Reply * @rqstp: resources for handling the Reply @@ -31,33 +27,17 @@ void svc_rdma_handle_bc_reply(struct svc_rqst *rqstp, __be32 *rdma_resp = rctxt->rc_recv_buf; struct rpc_rqst *req; u32 credits; - size_t len; - __be32 xid; - __be32 *p; - - p = (__be32 *)src->iov_base; - len = src->iov_len; - xid = *rdma_resp; - -#ifdef SVCRDMA_BACKCHANNEL_DEBUG - pr_info("%s: xid=%08x, length=%zu\n", - __func__, be32_to_cpu(xid), len); - pr_info("%s: RPC/RDMA: %*ph\n", - __func__, (int)RPCRDMA_HDRLEN_MIN, rdma_resp); - pr_info("%s: RPC: %*ph\n", - __func__, (int)len, p); -#endif spin_lock(&xprt->queue_lock); - req = xprt_lookup_rqst(xprt, xid); + req = xprt_lookup_rqst(xprt, *rdma_resp); if (!req) goto out_unlock; dst = &req->rq_private_buf.head[0]; memcpy(&req->rq_private_buf, &req->rq_rcv_buf, sizeof(struct xdr_buf)); - if (dst->iov_len < len) + if (dst->iov_len < src->iov_len) goto out_unlock; - memcpy(dst->iov_base, p, len); + memcpy(dst->iov_base, src->iov_base, src->iov_len); xprt_pin_rqst(req); spin_unlock(&xprt->queue_lock); @@ -66,7 +46,6 @@ void svc_rdma_handle_bc_reply(struct svc_rqst *rqstp, credits = 1; /* don't deadlock */ else if (credits > r_xprt->rx_buf.rb_bc_max_requests) credits = r_xprt->rx_buf.rb_bc_max_requests; - spin_lock(&xprt->transport_lock); xprt->cwnd = credits << RPC_CWNDSHIFT; spin_unlock(&xprt->transport_lock); @@ -174,10 +153,6 @@ rpcrdma_bc_send_request(struct svcxprt_rdma *rdma, struct rpc_rqst *rqst) *p++ = xdr_zero; *p = xdr_zero; -#ifdef SVCRDMA_BACKCHANNEL_DEBUG - pr_info("%s: %*ph\n", __func__, 64, rqst->rq_buffer); -#endif - rqst->rq_xtime = ktime_get(); rc = svc_rdma_bc_sendto(rdma, rqst, ctxt); if (rc) @@ -188,7 +163,6 @@ rpcrdma_bc_send_request(struct svcxprt_rdma *rdma, struct rpc_rqst *rqst) svc_rdma_send_ctxt_put(rdma, ctxt); drop_connection: - dprintk("svcrdma: failed to send bc call\n"); return -ENOTCONN; } @@ -207,9 +181,6 @@ static int xprt_rdma_bc_send_request(struct rpc_rqst *rqst) container_of(sxprt, struct svcxprt_rdma, sc_xprt); int ret; - dprintk("svcrdma: sending bc call with xid: %08x\n", - be32_to_cpu(rqst->rq_xid)); - if (test_bit(XPT_DEAD, &sxprt->xpt_flags)) return -ENOTCONN; @@ -222,8 +193,6 @@ static int xprt_rdma_bc_send_request(struct rpc_rqst *rqst) static void xprt_rdma_bc_close(struct rpc_xprt *xprt) { - dprintk("svcrdma: %s: xprt %p\n", __func__, xprt); - xprt_disconnect_done(xprt); xprt->cwnd = RPC_CWNDSHIFT; } @@ -231,8 +200,6 @@ xprt_rdma_bc_close(struct rpc_xprt *xprt) static void xprt_rdma_bc_put(struct rpc_xprt *xprt) { - dprintk("svcrdma: %s: xprt %p\n", __func__, xprt); - xprt_rdma_free_addresses(xprt); xprt_free(xprt); } @@ -267,19 +234,14 @@ xprt_setup_rdma_bc(struct xprt_create *args) struct rpc_xprt *xprt; struct rpcrdma_xprt *new_xprt; - 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(*new_xprt), RPCRDMA_MAX_BC_REQUESTS, RPCRDMA_MAX_BC_REQUESTS); - if (!xprt) { - dprintk("RPC: %s: couldn't allocate rpc_xprt\n", - __func__); + if (!xprt) return ERR_PTR(-ENOMEM); - } xprt->timeout = &xprt_rdma_bc_timeout; xprt_set_bound(xprt);