From patchwork Fri Jul 8 18:24:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever X-Patchwork-Id: 12911681 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 A7B0BC433EF for ; Fri, 8 Jul 2022 18:24:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239431AbiGHSYz (ORCPT ); Fri, 8 Jul 2022 14:24:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45590 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239432AbiGHSYy (ORCPT ); Fri, 8 Jul 2022 14:24:54 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0059282387; Fri, 8 Jul 2022 11:24:53 -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 8F4A66259E; Fri, 8 Jul 2022 18:24:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9346BC341C0; Fri, 8 Jul 2022 18:24:52 +0000 (UTC) Subject: [PATCH v3 11/32] NFSD: Zero counters when the filecache is re-initialized From: Chuck Lever To: linux-nfs@vger.kernel.org, netdev@vger.kernel.org Cc: david@fromorbit.com, jlayton@redhat.com, tgraf@suug.ch Date: Fri, 08 Jul 2022 14:24:51 -0400 Message-ID: <165730469147.28142.10705393492354984904.stgit@klimt.1015granger.net> In-Reply-To: <165730437087.28142.6731645688073512500.stgit@klimt.1015granger.net> References: <165730437087.28142.6731645688073512500.stgit@klimt.1015granger.net> User-Agent: StGit/1.5.dev3+g9561319 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org If nfsd_file_cache_init() is called after a shutdown, be sure the stat counters are reset. Signed-off-by: Chuck Lever --- fs/nfsd/filecache.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c index 7b532449b93f..3055a04eeabe 100644 --- a/fs/nfsd/filecache.c +++ b/fs/nfsd/filecache.c @@ -830,6 +830,8 @@ nfsd_file_cache_shutdown_net(struct net *net) void nfsd_file_cache_shutdown(void) { + int i; + set_bit(NFSD_FILE_SHUTDOWN, &nfsd_file_lru_flags); lease_unregister_notifier(&nfsd_file_lease_notifier); @@ -853,6 +855,15 @@ nfsd_file_cache_shutdown(void) nfsd_file_hashtbl = NULL; destroy_workqueue(nfsd_filecache_wq); nfsd_filecache_wq = NULL; + + for_each_possible_cpu(i) { + per_cpu(nfsd_file_cache_hits, i) = 0; + per_cpu(nfsd_file_acquisitions, i) = 0; + per_cpu(nfsd_file_releases, i) = 0; + per_cpu(nfsd_file_total_age, i) = 0; + per_cpu(nfsd_file_pages_flushed, i) = 0; + per_cpu(nfsd_file_evictions, i) = 0; + } } static bool