From patchwork Sun Feb 27 23:12:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Trond Myklebust X-Patchwork-Id: 12762208 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 9C8C8C4332F for ; Sun, 27 Feb 2022 23:18:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232207AbiB0XTV (ORCPT ); Sun, 27 Feb 2022 18:19:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42630 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232202AbiB0XTS (ORCPT ); Sun, 27 Feb 2022 18:19:18 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B26822504 for ; Sun, 27 Feb 2022 15:18:41 -0800 (PST) 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 382E6611D7 for ; Sun, 27 Feb 2022 23:18:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 84465C340F4 for ; Sun, 27 Feb 2022 23:18:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1646003920; bh=5h/9ONhR9JbTNfkbM1Nf4RX6uqiE1+CzDp93/8OWHsA=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Y+uJm4RKamIn8qTNLnfV+95FPTmMmguUzTpngsQhsrkmkukSaJ6FZ0/dTJt0L8hz8 0nCLCExaj25NV5fvRdlARFZbA+g0F2CGXBSQg6mVj6EoxA0J6Tr9Q3/WpP+H3N352G 0VkpW061EvHrUmXDvrgE+3kA313m/szA8vMt0JjWRMH6kGSK8MZJUpuBN6YAWwHn56 zLIHMdbdQndxrSkSD/WYFTE+aPaRKug16wh4afWV2yGN2/uHcRqahwGJbSwPaO+8Q6 br9rvDuTTZiqiPtFkmzNg0/G/OfAhl+SARe7bHET7k7ggm+9FUh5H9om+dscj6Rflg epIT6nkqL9rrA== From: trondmy@kernel.org To: linux-nfs@vger.kernel.org Subject: [PATCH v9 17/27] NFS: Readdirplus can't help lookup for case insensitive filesystems Date: Sun, 27 Feb 2022 18:12:17 -0500 Message-Id: <20220227231227.9038-18-trondmy@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220227231227.9038-17-trondmy@kernel.org> References: <20220227231227.9038-1-trondmy@kernel.org> <20220227231227.9038-2-trondmy@kernel.org> <20220227231227.9038-3-trondmy@kernel.org> <20220227231227.9038-4-trondmy@kernel.org> <20220227231227.9038-5-trondmy@kernel.org> <20220227231227.9038-6-trondmy@kernel.org> <20220227231227.9038-7-trondmy@kernel.org> <20220227231227.9038-8-trondmy@kernel.org> <20220227231227.9038-9-trondmy@kernel.org> <20220227231227.9038-10-trondmy@kernel.org> <20220227231227.9038-11-trondmy@kernel.org> <20220227231227.9038-12-trondmy@kernel.org> <20220227231227.9038-13-trondmy@kernel.org> <20220227231227.9038-14-trondmy@kernel.org> <20220227231227.9038-15-trondmy@kernel.org> <20220227231227.9038-16-trondmy@kernel.org> <20220227231227.9038-17-trondmy@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org From: Trond Myklebust If the filesystem is case insensitive, then readdirplus can't help with cache misses, since it won't return case folded variants of the filename. Signed-off-by: Trond Myklebust --- fs/nfs/dir.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index c5c7175a257c..5892c4ee3a6d 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -694,6 +694,8 @@ void nfs_readdir_record_entry_cache_miss(struct inode *dir) static void nfs_lookup_advise_force_readdirplus(struct inode *dir) { + if (nfs_server_capable(dir, NFS_CAP_CASE_INSENSITIVE)) + return; nfs_readdir_record_entry_cache_miss(dir); }