From patchwork Thu Jul 27 17:28:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gabriel Krisman Bertazi X-Patchwork-Id: 13330457 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 92A0AC04FDF for ; Thu, 27 Jul 2023 17:29:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230004AbjG0R3H (ORCPT ); Thu, 27 Jul 2023 13:29:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58576 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232394AbjG0R3C (ORCPT ); Thu, 27 Jul 2023 13:29:02 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2C3AD2D67; Thu, 27 Jul 2023 10:29:01 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id CB67D1F891; Thu, 27 Jul 2023 17:28:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1690478939; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6/tW1jwjtYiYuyuYvkAhhibnCktQlXT3ch84n1xLpug=; b=T5+9oXZM7VOYWkbVVSZ+cRiransKqUWFd2gr/Ax2T1XFDJWyi/5dbpmunhfCttK3UgBkfS ZZG4E93MFr6PIGLl8K8XrMMlUpLxFRswWGEEI/U7cvH/EmSxB9Zs7t3TmE6DXJG26RU7Q4 hmKDkPLjLhi2gWewEWzcz3Ooi6tNtGo= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1690478939; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6/tW1jwjtYiYuyuYvkAhhibnCktQlXT3ch84n1xLpug=; b=SUMBGdvOPU1uHLgfSiOvSD5GXQd4vwaVukDnFicXj8AZb+HA8GWxYGiqW3pNhbMz+JA/zV 0AwSo96ss7oJHBCQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 939A213902; Thu, 27 Jul 2023 17:28:59 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 1ylWHlupwmTdaAAAMHmgww (envelope-from ); Thu, 27 Jul 2023 17:28:59 +0000 From: Gabriel Krisman Bertazi To: viro@zeniv.linux.org.uk, brauner@kernel.org, tytso@mit.edu, ebiggers@kernel.org, jaegeuk@kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, Gabriel Krisman Bertazi , Gabriel Krisman Bertazi Subject: [PATCH v4 7/7] f2fs: Enable negative dentries on case-insensitive lookup Date: Thu, 27 Jul 2023 13:28:43 -0400 Message-ID: <20230727172843.20542-8-krisman@suse.de> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230727172843.20542-1-krisman@suse.de> References: <20230727172843.20542-1-krisman@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org From: Gabriel Krisman Bertazi Instead of invalidating negative dentries during case-insensitive lookups, mark them as such and let them be added to the dcache. d_ci_revalidate is able to properly filter them out if necessary based on the dentry casefold flag. Signed-off-by: Gabriel Krisman Bertazi --- Changes since v2: - Move dentry flag set closer to fscrypt code (Eric) --- fs/f2fs/namei.c | 25 ++++--------------------- 1 file changed, 4 insertions(+), 21 deletions(-) diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index bee0568888da..fef8e2e77f75 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -533,6 +533,10 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, err = f2fs_prepare_lookup(dir, dentry, &fname); generic_set_encrypted_ci_d_ops(dentry); + + if (IS_ENABLED(CONFIG_UNICODE) && IS_CASEFOLDED(dir)) + d_set_casefold_lookup(dentry); + if (err == -ENOENT) goto out_splice; if (err) @@ -578,17 +582,6 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, goto out_iput; } out_splice: -#if IS_ENABLED(CONFIG_UNICODE) - if (!inode && IS_CASEFOLDED(dir)) { - /* Eventually we want to call d_add_ci(dentry, NULL) - * for negative dentries in the encoding case as - * well. For now, prevent the negative dentry - * from being cached. - */ - trace_f2fs_lookup_end(dir, dentry, ino, err); - return NULL; - } -#endif new = d_splice_alias(inode, dentry); trace_f2fs_lookup_end(dir, !IS_ERR_OR_NULL(new) ? new : dentry, ino, IS_ERR(new) ? PTR_ERR(new) : err); @@ -641,16 +634,6 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry) f2fs_delete_entry(de, page, dir, inode); f2fs_unlock_op(sbi); -#if IS_ENABLED(CONFIG_UNICODE) - /* VFS negative dentries are incompatible with Encoding and - * Case-insensitiveness. Eventually we'll want avoid - * invalidating the dentries here, alongside with returning the - * negative dentries at f2fs_lookup(), when it is better - * supported by the VFS for the CI case. - */ - if (IS_CASEFOLDED(dir)) - d_invalidate(dentry); -#endif if (IS_DIRSYNC(dir)) f2fs_sync_fs(sbi->sb, 1); fail: