From patchwork Thu Aug 10 08:39:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13349043 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 106EAC001DB for ; Thu, 10 Aug 2023 08:39:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230064AbjHJIjt (ORCPT ); Thu, 10 Aug 2023 04:39:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232080AbjHJIjs (ORCPT ); Thu, 10 Aug 2023 04:39:48 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 908C31BFA for ; Thu, 10 Aug 2023 01:39:47 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 2DCA565392 for ; Thu, 10 Aug 2023 08:39:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 195B9C433C8; Thu, 10 Aug 2023 08:39:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1691656786; bh=uYUd5l28aGHJI4Ay72COJdbaiGAo2Sp3Ttylyv3GPJU=; h=From:To:Cc:Subject:Date:From; b=XYyc05a//SXuoeXS/X5T7Lkd0SiFCxGAkAvJ9IxQaIdMej2fFnn5MJum6QkCSZMc0 wUPzopy4nRtyekQwCRsxrcCzbZbfsNxElEwGQbev59M0w+EzzsPeWajaRPaU8cHknf qePGJBU8ag2xHbXPAGXDCc3VIpWbF+/ysbTPRhnkLE4w9gQFCRvBayK3cDvBYWLUAV OoI9xHe00OeMy9/xSiF2y8tRFfCWLzAPoMf2OIETMwvVn3Zeoaim/frN9frU8yUOQA GP8jCfLP9B6f07YIwF90L5YXc/Io8rZTUGCZK+sNk4jk+S4S9Bld93UqOfDX8HOAU+ MAl19xirvCLCQ== From: Lorenzo Bianconi To: linux-nfs@vger.kernel.org Cc: lorenzo.bianconi@redhat.com, chuck.lever@oracle.com, jlayton@kernel.org, neilb@suse.de Subject: [PATCH v6 0/3] add rpc_status handler in nfsd debug filesystem Date: Thu, 10 Aug 2023 10:39:18 +0200 Message-ID: X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Introduce rpc_status entry in nfsd debug filesystem in order to dump pending RPC requests debugging information. Changes since v5: - add missing delimiters for nfs4 compound ops - add a header line for rpc_status handler - do not dump rq_prog - do not dump rq_flags in hex Changes since v4: - rely on acquire/release APIs and get rid of atomic operation - fix kdoc for nfsd_rpc_status_open - get rid of ',' as field delimiter in nfsd_rpc_status hanlder - move nfsd_rpc_status before nfsd_v4 enum entries - fix compilantion error if nfsdv4 is not enabled Changes since v3: - introduce rq_status_counter in order to detect if the RPC request is pending and RPC info are stable - rely on __svc_print_addr to dump IP info Changes since v2: - minor changes in nfsd_rpc_status_show output Changes since v1: - rework nfsd_rpc_status_show output Changes since RFCv1: - riduce time holding nfsd_mutex bumping svc_serv refcoung in nfsd_rpc_status_open() - dump rqstp->rq_stime - add missing kdoc for nfsd_rpc_status_open() Link: https://bugzilla.linux-nfs.org/show_bug.cgi?id=3D366 Lorenzo Bianconi (3): SUNRPC: add verbose parameter to __svc_print_addr() NFSD: introduce nfsd_stats_open utility routine NFSD: add rpc_status entry in nfsd debug filesystem fs/nfsd/nfs4proc.c | 4 +- fs/nfsd/nfsctl.c | 11 ++- fs/nfsd/nfsd.h | 9 +- fs/nfsd/nfssvc.c | 163 ++++++++++++++++++++++++++++++-- include/linux/sunrpc/svc.h | 1 + include/linux/sunrpc/svc_xprt.h | 12 +-- net/sunrpc/svc.c | 2 +- net/sunrpc/svc_xprt.c | 2 +- 8 files changed, 185 insertions(+), 19 deletions(-)