From patchwork Fri May 14 19:56:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever III X-Patchwork-Id: 12258789 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3EAD4C433B4 for ; Fri, 14 May 2021 19:56:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1F17361353 for ; Fri, 14 May 2021 19:56:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233130AbhENT54 (ORCPT ); Fri, 14 May 2021 15:57:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:57444 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233033AbhENT54 (ORCPT ); Fri, 14 May 2021 15:57:56 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7098C61285; Fri, 14 May 2021 19:56:44 +0000 (UTC) Subject: [PATCH v3 15/24] NFSD: Add cb_lost tracepoint From: Chuck Lever To: linux-nfs@vger.kernel.org Cc: dwysocha@redhat.com, bfields@fieldses.org Date: Fri, 14 May 2021 15:56:43 -0400 Message-ID: <162102220371.10915.4184457731193101246.stgit@klimt.1015granger.net> In-Reply-To: <162102191240.10915.5003178983503027218.stgit@klimt.1015granger.net> References: <162102191240.10915.5003178983503027218.stgit@klimt.1015granger.net> User-Agent: StGit/1.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Provide more clarity about when the callback channel is in trouble. Signed-off-by: Chuck Lever --- fs/nfsd/nfs4state.c | 2 ++ fs/nfsd/trace.h | 1 + 2 files changed, 3 insertions(+) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index aa645aeee7b6..377ec4a6a771 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1745,6 +1745,8 @@ static void nfsd4_conn_lost(struct svc_xpt_user *u) struct nfsd4_conn *c = container_of(u, struct nfsd4_conn, cn_xpt_user); struct nfs4_client *clp = c->cn_session->se_client; + trace_nfsd_cb_lost(clp); + spin_lock(&clp->cl_lock); if (!list_empty(&c->cn_persession)) { list_del(&c->cn_persession); diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index 1c43e6647d1e..336dc4c45416 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -912,6 +912,7 @@ DEFINE_EVENT(nfsd_cb_class, nfsd_cb_##name, \ DEFINE_NFSD_CB_EVENT(setup); DEFINE_NFSD_CB_EVENT(state); +DEFINE_NFSD_CB_EVENT(lost); DEFINE_NFSD_CB_EVENT(shutdown); TRACE_DEFINE_ENUM(RPC_AUTH_NULL);