From patchwork Wed May 12 15:37:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever X-Patchwork-Id: 12254281 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 B66CDC43140 for ; Wed, 12 May 2021 16:36:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B81561285 for ; Wed, 12 May 2021 16:36:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242230AbhELQds (ORCPT ); Wed, 12 May 2021 12:33:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:58912 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239323AbhELQHw (ORCPT ); Wed, 12 May 2021 12:07:52 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2B06161D28; Wed, 12 May 2021 15:37:27 +0000 (UTC) Subject: [PATCH v2 23/25] NFSD: Add an nfsd_cb_probe tracepoint From: Chuck Lever To: linux-nfs@vger.kernel.org Cc: dwysocha@redhat.com, bfields@fieldses.org, rostedt@goodmis.org Date: Wed, 12 May 2021 11:37:26 -0400 Message-ID: <162083384624.3108.734544982694189070.stgit@klimt.1015granger.net> In-Reply-To: <162083366966.3108.12581818416105328952.stgit@klimt.1015granger.net> References: <162083366966.3108.12581818416105328952.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 Record a tracepoint event when the server performs a callback probe. This event can be enabled as a group with other nfsd_cb tracepoints. Signed-off-by: Chuck Lever --- fs/nfsd/nfs4callback.c | 1 + fs/nfsd/trace.h | 1 + 2 files changed, 2 insertions(+) diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index c2a2a58b3581..ddab969d7865 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -998,6 +998,7 @@ static const struct rpc_call_ops nfsd4_cb_probe_ops = { */ void nfsd4_probe_callback(struct nfs4_client *clp) { + trace_nfsd_cb_probe(clp); nfsd4_mark_cb_state(clp, NFSD4_CB_UNKNOWN); set_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_flags); nfsd4_run_cb(&clp->cl_cb_null); diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index 7f6a2cae0019..da8e7a5a9c61 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -907,6 +907,7 @@ DEFINE_EVENT(nfsd_cb_class, nfsd_cb_##name, \ TP_ARGS(clp)) DEFINE_NFSD_CB_EVENT(state); +DEFINE_NFSD_CB_EVENT(probe); DEFINE_NFSD_CB_EVENT(lost); DEFINE_NFSD_CB_EVENT(shutdown);