Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp4630283pxj; Wed, 12 May 2021 09:36:36 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxNsToccxydcxbR5KfVOV5ta35yYfO3zPB282J7rXfBy41vzpdDwFGEJ2gJkgFvP82hMRqi X-Received: by 2002:a05:6512:208b:: with SMTP id t11mr25126225lfr.358.1620837395851; Wed, 12 May 2021 09:36:35 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1620837395; cv=none; d=google.com; s=arc-20160816; b=iUxho2p/Uyc2ozef2nOPzFLbtT3mli6/M2c3FPGzf89k/6Ipli3KlaqoEd0uKD+2oP q0HyFhmX9PkjA14Bt0BQudQcd0dx7MDNShaloVUixFukrvlNIaJOpqTFscy52y9dp78v NFJg4zFiIflJnNjdVDmJmh4D+fH/Rb09sVqQJ/rkxA2ag4HCj9qSHOWS1QwLzgs1Cq15 KUB0lH2DofHshgbqiVcpD46fMLuRBcbCC+Lk8yZKKEPvQ0sRxH0MSpvRFtopKNMek8to WTqgIupsUYmJgSeekawwIIuJSodjvxSEbmKjuAEIXtgtbeto5TcLasRZ/4YQvZZaBOBT FQGA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:cc:to:from :subject; bh=VGv0tc6rmSw7k2IUx+qh50giTRB8gv7JpemdGIuEpqk=; b=r50jXSQMXg43w0YYd6xtQ/F3QIcRWZ9MrFAjzQqUHOy3z42FJIsKwFj8e84RqVqTiE iV0YbTzF+ufBISUYbYXsUlH9GfCxZYHQAryfmaXv4whMr4a1Xv5TU0KkhpBDhI2QVDfp NlK8BOK8X3QzhwgObMtEajSA9srvTEGjkrG4A/CaSm7S3x6I51+qrqIO0Bcje8sUDi75 c3oqpzLJJLWIfDqTb60hs2yjzwe4iyLlf7Miv2PlvRCBJq45yDcwNGsBhQzVtW9yPrb5 rnzO0YJncbz+3Fe3lBQfT/bnfnwlXoHNav1GvhR+4e3koVV12kUUYLS0l/kVtkMEIJ8F m6HQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=oracle.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id u19si327029lji.83.2021.05.12.09.36.06; Wed, 12 May 2021 09:36:35 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239091AbhELQdH (ORCPT + 99 others); Wed, 12 May 2021 12:33:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:36524 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239175AbhELQHd (ORCPT ); Wed, 12 May 2021 12:07:33 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8DCFA61440; Wed, 12 May 2021 15:36:41 +0000 (UTC) Subject: [PATCH v2 16/25] NFSD: Add cb_lost 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 11:36:40 -0400 Message-ID: <162083380066.3108.961893037484895767.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 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit 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 ad0139b6df15..79d504f461e6 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 6afeda8652b3..bd683523b052 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -909,6 +909,7 @@ 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);