From patchwork Wed Jun 22 14:15:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever X-Patchwork-Id: 12890779 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 A9CF0CCA481 for ; Wed, 22 Jun 2022 14:16:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1358115AbiFVOQH (ORCPT ); Wed, 22 Jun 2022 10:16:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358147AbiFVOPt (ORCPT ); Wed, 22 Jun 2022 10:15:49 -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 762573A721; Wed, 22 Jun 2022 07:15:13 -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 11DF961B9C; Wed, 22 Jun 2022 14:15:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 27D85C34114; Wed, 22 Jun 2022 14:15:12 +0000 (UTC) Subject: [PATCH RFC 22/30] NFSD: nfsd_file_hash_remove can compute hashval From: Chuck Lever To: linux-nfs@vger.kernel.org, netdev@vger.kernel.org Cc: david@fromorbit.com, tgraf@suug.ch, jlayton@redhat.com Date: Wed, 22 Jun 2022 10:15:11 -0400 Message-ID: <165590731118.75778.13970409813627047015.stgit@manet.1015granger.net> In-Reply-To: <165590626293.75778.9843437418112335153.stgit@manet.1015granger.net> References: <165590626293.75778.9843437418112335153.stgit@manet.1015granger.net> User-Agent: StGit/1.5.dev2+g9ce680a5 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-State: RFC Remove an unnecessary use of nf_hashval. Signed-off-by: Chuck Lever --- fs/nfsd/filecache.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c index 0387b2028a9b..fa793413bc1f 100644 --- a/fs/nfsd/filecache.c +++ b/fs/nfsd/filecache.c @@ -295,6 +295,18 @@ nfsd_file_do_unhash(struct nfsd_file *nf) atomic_long_dec(&nfsd_filecache_count); } +static void +nfsd_file_hash_remove(struct nfsd_file *nf) +{ + struct inode *inode = nf->nf_inode; + unsigned int hashval = (unsigned int)hash_long(inode->i_ino, + NFSD_FILE_HASH_BITS); + + spin_lock(&nfsd_file_hashtbl[hashval].nfb_lock); + nfsd_file_do_unhash(nf); + spin_unlock(&nfsd_file_hashtbl[hashval].nfb_lock); +} + static bool nfsd_file_unhash(struct nfsd_file *nf) { @@ -513,11 +525,8 @@ static void nfsd_file_gc_dispose_list(struct list_head *dispose) { struct nfsd_file *nf; - list_for_each_entry(nf, dispose, nf_lru) { - spin_lock(&nfsd_file_hashtbl[nf->nf_hashval].nfb_lock); - nfsd_file_do_unhash(nf); - spin_unlock(&nfsd_file_hashtbl[nf->nf_hashval].nfb_lock); - } + list_for_each_entry(nf, dispose, nf_lru) + nfsd_file_hash_remove(nf); nfsd_file_dispose_list_delayed(dispose); }