From patchwork Fri Jul 29 16:47:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 12932667 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 913F2C00144 for ; Fri, 29 Jul 2022 16:48:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236366AbiG2QsP (ORCPT ); Fri, 29 Jul 2022 12:48:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38202 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236492AbiG2Qry (ORCPT ); Fri, 29 Jul 2022 12:47:54 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9C08789A7F for ; Fri, 29 Jul 2022 09:47:32 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7137361E62 for ; Fri, 29 Jul 2022 16:47:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 892FDC433C1; Fri, 29 Jul 2022 16:47:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1659113236; bh=80p2Zq4IrZ1ZXaM2qm5e/a2ZSJB0WlTqsniphdRRTYc=; h=From:To:Cc:Subject:Date:From; b=WBHN1vQ1Yf6efltf3bcismc54uWbZLmqToPDr/xiEH1bkALdD3oHxincPAx+qhsz3 jUrbAXH7iMVqI53qVthdAIXXx0LmO6NoDOXPjjQKhgpi8VYFuykmmMir1CVRKaeyzD u+gN8vBtZ027lqNTOCh9m5pQj8see5308RQJzhb5qnAp5pBFZOm7/fCn8RyX1V7VaF N4EKbu5/OFj0BP2GyDcN8mBWUQDSpUdfuHhkuYsykIXfaVfNv5WXQAWHDS69k2pI8i 1ptK+ETDm3GRcUJzGAhmhmpHfm5LHLJhRt7cSIBXugE5/QeMq1Noso8kBkYKnS5Tda gWweAsHGEycvQ== From: Jeff Layton To: chuck.lever@oracle.com Cc: linux-nfs@vger.kernel.org Subject: [PATCH 1/3] nfsd: add new tracepoint in nfsd_open_break_lease Date: Fri, 29 Jul 2022 12:47:13 -0400 Message-Id: <20220729164715.75702-1-jlayton@kernel.org> X-Mailer: git-send-email 2.37.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Signed-off-by: Jeff Layton --- fs/nfsd/trace.h | 16 ++++++++++++++++ fs/nfsd/vfs.c | 2 ++ 2 files changed, 18 insertions(+) diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index 96bb6629541e..38fb1ca31010 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -531,6 +531,22 @@ DEFINE_STATEID_EVENT(open); DEFINE_STATEID_EVENT(deleg_read); DEFINE_STATEID_EVENT(deleg_recall); +TRACE_EVENT(nfsd_open_break_lease, + TP_PROTO(struct inode *inode, + int access), + TP_ARGS(inode, access), + TP_STRUCT__entry( + __field(void *, inode) + __field(int, access) + ), + TP_fast_assign( + __entry->inode = inode; + __entry->access = access; + ), + TP_printk("inode=%p access=%s", __entry->inode, + show_nfsd_may_flags(__entry->access)) +) + DECLARE_EVENT_CLASS(nfsd_stateseqid_class, TP_PROTO(u32 seqid, const stateid_t *stp), TP_ARGS(seqid, stp), diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index d79db56475d4..0edfe6ff7d22 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -729,6 +729,8 @@ int nfsd_open_break_lease(struct inode *inode, int access) { unsigned int mode; + trace_nfsd_open_break_lease(inode, access); + if (access & NFSD_MAY_NOT_BREAK_LEASE) return 0; mode = (access & NFSD_MAY_WRITE) ? O_WRONLY : O_RDONLY;