From patchwork Tue Apr 2 15:48:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13614333 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D942FCD1284 for ; Tue, 2 Apr 2024 15:49:06 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-1.v29.lw.sourceforge.com) by sfs-ml-1.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1rrgNk-0003GG-4X; Tue, 02 Apr 2024 15:49:04 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-1.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rrgNh-0003G1-QQ for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:02 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=R3cIGmOcQua7i5K79FiO1zV2wm4mTvFVdTHMTpLThhs=; b=iOsvAovFLD5++28306AE0bp3cr Oq5yMfbSdfzcoXlUhWKnpkpQTf6oaNLLy17XlC7LWzTVrgU+g9T0NHJDNvTv+vTHbtamuYtujXWUF bfkSrry/iIGQxZ3sLj2S7oT/fykIHW2ytcfHcT+zHCtzx0BDVqXs05ldtSCUEBPuW+IA=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=R3cIGmOcQua7i5K79FiO1zV2wm4mTvFVdTHMTpLThhs=; b=BHDrk6XfwSdugjJXSRcUZ4m7/a lhkMUVGJZPGMeI3LY+JDzQ6/G1eeuj6Lsa8aLzymFlEZZlPG/y3Z21fCgFFDfK5utVqPNVNW0PtNk qqrZcit1s+prEHWMmc5x+XmjTk07yWytT4MPKQSieAPILcr5BkAEFkU9JgJLPiOIqDjc=; Received: from madrid.collaboradmins.com ([46.235.227.194]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1rrgNg-00042h-Lo for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:01 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1712072929; bh=sSDn7Wfq2OSR5HgXKxsXhUQl5lGRaJDd9ojoG3UQPDU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R66Uge/NPaDTQQVV6v/smY69qevL3iH2SQ7ev9hQi2A26T7/ExvCPdntT4NB8dGup 9g5SROHt481maxAr9BOxwZvOIfw07sjUY4u0+ZVOl69TMMKyoVQVfQ5H6GYjs3Mhxe KHhOQmTHM8M2zoRXlIvEhzCVQ+4eh3APV/mfQSO9C0talmbs/DxK3kV5DRddbWsQDc +ACZGzKLZGikoUOGXDDrRzLJ8kb6SqUX3mHEFsDBrHQjtQI4v1/wY5yrQ6UufK3cgg AouR6dBy+Xv+JPp0sA4uM2q9BwIkgfP5Z6vqcTYRj/FeXVYHLnwKig1JrEP0bcWuhi mF04B9/CquE4A== Received: from eugen-station.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: ehristev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id BA79D37811D4; Tue, 2 Apr 2024 15:48:48 +0000 (UTC) To: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, jaegeuk@kernel.org, chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Date: Tue, 2 Apr 2024 18:48:34 +0300 Message-Id: <20240402154842.508032-2-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240402154842.508032-1-eugen.hristev@collabora.com> References: <20240402154842.508032-1-eugen.hristev@collabora.com> MIME-Version: 1.0 X-Headers-End: 1rrgNg-00042h-Lo Subject: [f2fs-dev] [PATCH v15 1/9] ext4: Simplify the handling of cached insensitive names X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Eugen Hristev via Linux-f2fs-devel From: Eugen Hristev Reply-To: Eugen Hristev Cc: krisman@suse.de, brauner@kernel.org, jack@suse.cz, linux-kernel@vger.kernel.org, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, kernel@collabora.com, Gabriel Krisman Bertazi Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Gabriel Krisman Bertazi Keeping it as qstr avoids the unnecessary conversion in ext4_match Signed-off-by: Gabriel Krisman Bertazi [eugen.hristev@collabora.com: port to 6.8-rc3] Signed-off-by: Eugen Hristev --- fs/ext4/ext4.h | 2 +- fs/ext4/namei.c | 23 +++++++++++------------ 2 files changed, 12 insertions(+), 13 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index a5d784872303..4061d11b9763 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2506,7 +2506,7 @@ struct ext4_filename { struct fscrypt_str crypto_buf; #endif #if IS_ENABLED(CONFIG_UNICODE) - struct fscrypt_str cf_name; + struct qstr cf_name; #endif }; diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 5e4f65c14dfb..b96983a4c185 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1445,7 +1445,8 @@ static int ext4_ci_compare(const struct inode *parent, const struct qstr *name, int ext4_fname_setup_ci_filename(struct inode *dir, const struct qstr *iname, struct ext4_filename *name) { - struct fscrypt_str *cf_name = &name->cf_name; + struct qstr *cf_name = &name->cf_name; + unsigned char *buf; struct dx_hash_info *hinfo = &name->hinfo; int len; @@ -1455,18 +1456,18 @@ int ext4_fname_setup_ci_filename(struct inode *dir, const struct qstr *iname, return 0; } - cf_name->name = kmalloc(EXT4_NAME_LEN, GFP_NOFS); - if (!cf_name->name) + buf = kmalloc(EXT4_NAME_LEN, GFP_NOFS); + if (!buf) return -ENOMEM; - len = utf8_casefold(dir->i_sb->s_encoding, - iname, cf_name->name, - EXT4_NAME_LEN); + len = utf8_casefold(dir->i_sb->s_encoding, iname, buf, EXT4_NAME_LEN); if (len <= 0) { - kfree(cf_name->name); - cf_name->name = NULL; + kfree(buf); + buf = NULL; } + cf_name->name = buf; cf_name->len = (unsigned) len; + if (!IS_ENCRYPTED(dir)) return 0; @@ -1503,8 +1504,6 @@ static bool ext4_match(struct inode *parent, if (IS_CASEFOLDED(parent) && (!IS_ENCRYPTED(parent) || fscrypt_has_encryption_key(parent))) { if (fname->cf_name.name) { - struct qstr cf = {.name = fname->cf_name.name, - .len = fname->cf_name.len}; if (IS_ENCRYPTED(parent)) { if (fname->hinfo.hash != EXT4_DIRENT_HASH(de) || fname->hinfo.minor_hash != @@ -1513,8 +1512,8 @@ static bool ext4_match(struct inode *parent, return false; } } - return !ext4_ci_compare(parent, &cf, de->name, - de->name_len, true); + return !ext4_ci_compare(parent, &fname->cf_name, + de->name, de->name_len, true); } return !ext4_ci_compare(parent, fname->usr_fname, de->name, de->name_len, false); From patchwork Tue Apr 2 15:48:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13614335 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 28285C6FD1F for ; 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(cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: ehristev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id EF9453782017; Tue, 2 Apr 2024 15:48:49 +0000 (UTC) To: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, jaegeuk@kernel.org, chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Date: Tue, 2 Apr 2024 18:48:35 +0300 Message-Id: <20240402154842.508032-3-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240402154842.508032-1-eugen.hristev@collabora.com> References: <20240402154842.508032-1-eugen.hristev@collabora.com> MIME-Version: 1.0 X-Headers-End: 1rrgNd-00042P-4D Subject: [f2fs-dev] [PATCH v15 2/9] f2fs: Simplify the handling of cached insensitive names X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Eugen Hristev via Linux-f2fs-devel From: Eugen Hristev Reply-To: Eugen Hristev Cc: krisman@suse.de, brauner@kernel.org, jack@suse.cz, linux-kernel@vger.kernel.org, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, kernel@collabora.com, Gabriel Krisman Bertazi Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Gabriel Krisman Bertazi Keeping it as qstr avoids the unnecessary conversion in f2fs_match Signed-off-by: Gabriel Krisman Bertazi [eugen.hristev@collabora.com: port to 6.8-rc3 and minor changes] Signed-off-by: Eugen Hristev --- fs/f2fs/dir.c | 53 ++++++++++++++++++++++++++-------------------- fs/f2fs/f2fs.h | 16 +++++++++++++- fs/f2fs/recovery.c | 5 +---- 3 files changed, 46 insertions(+), 28 deletions(-) diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 042593aed1ec..3b454f355f15 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -42,35 +42,49 @@ static unsigned int bucket_blocks(unsigned int level) return 4; } +#if IS_ENABLED(CONFIG_UNICODE) /* If @dir is casefolded, initialize @fname->cf_name from @fname->usr_fname. */ int f2fs_init_casefolded_name(const struct inode *dir, struct f2fs_filename *fname) { -#if IS_ENABLED(CONFIG_UNICODE) struct super_block *sb = dir->i_sb; + unsigned char *buf; + int len; if (IS_CASEFOLDED(dir) && !is_dot_dotdot(fname->usr_fname->name, fname->usr_fname->len)) { - fname->cf_name.name = f2fs_kmem_cache_alloc(f2fs_cf_name_slab, - GFP_NOFS, false, F2FS_SB(sb)); - if (!fname->cf_name.name) + buf = f2fs_kmem_cache_alloc(f2fs_cf_name_slab, + GFP_NOFS, false, F2FS_SB(sb)); + if (!buf) return -ENOMEM; - fname->cf_name.len = utf8_casefold(sb->s_encoding, - fname->usr_fname, - fname->cf_name.name, - F2FS_NAME_LEN); - if ((int)fname->cf_name.len <= 0) { - kmem_cache_free(f2fs_cf_name_slab, fname->cf_name.name); - fname->cf_name.name = NULL; + + len = utf8_casefold(sb->s_encoding, fname->usr_fname, + buf, F2FS_NAME_LEN); + if (len <= 0) { + kmem_cache_free(f2fs_cf_name_slab, buf); if (sb_has_strict_encoding(sb)) return -EINVAL; /* fall back to treating name as opaque byte sequence */ + return 0; } + fname->cf_name.name = buf; + fname->cf_name.len = len; } -#endif + return 0; } +void f2fs_free_casefolded_name(struct f2fs_filename *fname) +{ + unsigned char *buf = (unsigned char *)fname->cf_name.name; + + if (buf) { + kmem_cache_free(f2fs_cf_name_slab, buf); + fname->cf_name.name = NULL; + } +} +#endif /* CONFIG_UNICODE */ + static int __f2fs_setup_filename(const struct inode *dir, const struct fscrypt_name *crypt_name, struct f2fs_filename *fname) @@ -142,12 +156,7 @@ void f2fs_free_filename(struct f2fs_filename *fname) kfree(fname->crypto_buf.name); fname->crypto_buf.name = NULL; #endif -#if IS_ENABLED(CONFIG_UNICODE) - if (fname->cf_name.name) { - kmem_cache_free(f2fs_cf_name_slab, fname->cf_name.name); - fname->cf_name.name = NULL; - } -#endif + f2fs_free_casefolded_name(fname); } static unsigned long dir_block_index(unsigned int level, @@ -235,11 +244,9 @@ static inline int f2fs_match_name(const struct inode *dir, struct fscrypt_name f; #if IS_ENABLED(CONFIG_UNICODE) - if (fname->cf_name.name) { - struct qstr cf = FSTR_TO_QSTR(&fname->cf_name); - - return f2fs_match_ci_name(dir, &cf, de_name, de_name_len); - } + if (fname->cf_name.name) + return f2fs_match_ci_name(dir, &fname->cf_name, + de_name, de_name_len); #endif f.usr_fname = fname->usr_fname; f.disk_name = fname->disk_name; diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 65294e3b0bef..4f68c58718fb 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -524,7 +524,7 @@ struct f2fs_filename { * internal operation where usr_fname is also NULL. In all these cases * we fall back to treating the name as an opaque byte sequence. */ - struct fscrypt_str cf_name; + struct qstr cf_name; #endif }; @@ -3528,8 +3528,22 @@ int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir, /* * dir.c */ +#if IS_ENABLED(CONFIG_UNICODE) int f2fs_init_casefolded_name(const struct inode *dir, struct f2fs_filename *fname); +void f2fs_free_casefolded_name(struct f2fs_filename *fname); +#else +static inline int f2fs_init_casefolded_name(const struct inode *dir, + struct f2fs_filename *fname) +{ + return 0; +} + +static inline void f2fs_free_casefolded_name(struct f2fs_filename *fname) +{ +} +#endif /* CONFIG_UNICODE */ + int f2fs_setup_filename(struct inode *dir, const struct qstr *iname, int lookup, struct f2fs_filename *fname); int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry, diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c index d0f24ccbd1ac..7e53abf6d216 100644 --- a/fs/f2fs/recovery.c +++ b/fs/f2fs/recovery.c @@ -153,11 +153,8 @@ static int init_recovered_filename(const struct inode *dir, if (err) return err; f2fs_hash_filename(dir, fname); -#if IS_ENABLED(CONFIG_UNICODE) /* Case-sensitive match is fine for recovery */ - kmem_cache_free(f2fs_cf_name_slab, fname->cf_name.name); - fname->cf_name.name = NULL; -#endif + f2fs_free_casefolded_name(fname); } else { f2fs_hash_filename(dir, fname); } From patchwork Tue Apr 2 15:48:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13614336 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CC716CD1284 for ; Tue, 2 Apr 2024 15:49:09 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-3.v29.lw.sourceforge.com) by sfs-ml-3.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1rrgNo-0005EO-NV; Tue, 02 Apr 2024 15:49:09 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-3.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rrgNj-0005E7-TW for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:04 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=AKwvK/HS9IUopAhw/EmLrvhjDdrXgu3eEQUUYuZDCwo=; b=nO9lJscGGC5nAu02e7CO6kXBDi UkjNpaEho0lRwWyFuH1CmYlp+5AIUFOmq+iWVXKs50/AD5yrNo9Z1Mi/YtnAjLQ0Mpt891rHr1FSF y56Blh7luvfsOfudqt+0TRWCUQm55lAjEhWf29NwORaMcei91BA6AIHTSCL23Gup3iJc=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=AKwvK/HS9IUopAhw/EmLrvhjDdrXgu3eEQUUYuZDCwo=; b=heidlUpKEzq25OC+9MQaKl/1VJ Npe2KKb3FVr786uIXqEjtP7AeRJo5X+kuQKiu2MyYnUJOR1xLmNoANCkCkTDdGpIoStXaqh4m3uis tTeQ5q3mjbtcB8W+E7ByPXmjb0tyFXhQCSXtvIqSkte4FJpsrePNU0Pnq6iwRGiLFFQA=; Received: from madrid.collaboradmins.com ([46.235.227.194]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1rrgNj-00042s-1r for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:04 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1712072932; bh=upTn9VDPH4ATj696dO2v0HAAxcgXeQncdfgIxpTDi8A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=At6Y/fkMPPh7NBpLbP7gT7+bSmI28T5D4dzO8VJBNOUGsTZxktpxHDM98g3MntF5f m5TOqJ7gc2i8eYm3AS6qmhk91epofuEbKzju3tj13nCgvP69GYQSAFakBgK0oKJwhd 8XRIua8emh7dh/OTIlgILTmd8tyaUDWlHino9Ipv4INIlCMUX+dXHCQEVFchljezWu t7WJLydJDV8jGMfUtSuvydhIL98xzzLljwXCE1WtqBioT0286Se3zouSW7W2fAH5sI o3eDK/bzu52uaZeeng7ZbS4gkS3Z6VGhMa8++2N+RYibxf4OHvab8CeXR35T7mL760 vv/fCpUeQa/4Q== Received: from eugen-station.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: ehristev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 30CD037820EF; Tue, 2 Apr 2024 15:48:51 +0000 (UTC) To: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, jaegeuk@kernel.org, chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Date: Tue, 2 Apr 2024 18:48:36 +0300 Message-Id: <20240402154842.508032-4-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240402154842.508032-1-eugen.hristev@collabora.com> References: <20240402154842.508032-1-eugen.hristev@collabora.com> MIME-Version: 1.0 X-Headers-End: 1rrgNj-00042s-1r Subject: [f2fs-dev] [PATCH v15 3/9] libfs: Introduce case-insensitive string comparison helper X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Eugen Hristev via Linux-f2fs-devel From: Eugen Hristev Reply-To: Eugen Hristev Cc: krisman@suse.de, brauner@kernel.org, jack@suse.cz, linux-kernel@vger.kernel.org, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, kernel@collabora.com, Gabriel Krisman Bertazi Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Gabriel Krisman Bertazi generic_ci_match can be used by case-insensitive filesystems to compare strings under lookup with dirents in a case-insensitive way. This function is currently reimplemented by each filesystem supporting casefolding, so this reduces code duplication in filesystem-specific code. Signed-off-by: Gabriel Krisman Bertazi [eugen.hristev@collabora.com: rework to first test the exact match] Signed-off-by: Eugen Hristev --- fs/libfs.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++ include/linux/fs.h | 4 +++ 2 files changed, 81 insertions(+) diff --git a/fs/libfs.c b/fs/libfs.c index c297953db948..711eecc125bd 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -1776,6 +1776,83 @@ static const struct dentry_operations generic_ci_dentry_ops = { .d_revalidate = fscrypt_d_revalidate, #endif }; + +/** + * generic_ci_match() - Match a name (case-insensitively) with a dirent. + * This is a filesystem helper for comparison with directory entries. + * generic_ci_d_compare should be used in VFS' ->d_compare instead. + * + * @parent: Inode of the parent of the dirent under comparison + * @name: name under lookup. + * @folded_name: Optional pre-folded name under lookup + * @de_name: Dirent name. + * @de_name_len: dirent name length. + * + * Test whether a case-insensitive directory entry matches the filename + * being searched. If @folded_name is provided, it is used instead of + * recalculating the casefold of @name. + * + * Return: > 0 if the directory entry matches, 0 if it doesn't match, or + * < 0 on error. + */ +int generic_ci_match(const struct inode *parent, + const struct qstr *name, + const struct qstr *folded_name, + const u8 *de_name, u32 de_name_len) +{ + const struct super_block *sb = parent->i_sb; + const struct unicode_map *um = sb->s_encoding; + struct fscrypt_str decrypted_name = FSTR_INIT(NULL, de_name_len); + struct qstr dirent = QSTR_INIT(de_name, de_name_len); + int res = 0, match = 0; + + if (IS_ENCRYPTED(parent)) { + const struct fscrypt_str encrypted_name = + FSTR_INIT((u8 *) de_name, de_name_len); + + if (WARN_ON_ONCE(!fscrypt_has_encryption_key(parent))) + return -EINVAL; + + decrypted_name.name = kmalloc(de_name_len, GFP_KERNEL); + if (!decrypted_name.name) + return -ENOMEM; + res = fscrypt_fname_disk_to_usr(parent, 0, 0, &encrypted_name, + &decrypted_name); + if (res < 0) + goto out; + dirent.name = decrypted_name.name; + dirent.len = decrypted_name.len; + } + + /* + * Attempt a case-sensitive match first. It is cheaper and + * should cover most lookups, including all the sane + * applications that expect a case-sensitive filesystem. + */ + if (folded_name->name) { + if (dirent.len == folded_name->len && + !memcmp(folded_name->name, dirent.name, dirent.len)) { + match = 1; + goto out; + } + res = utf8_strncasecmp_folded(um, folded_name, &dirent); + } else { + if (dirent.len == name->len && + !memcmp(name->name, dirent.name, dirent.len) && + (!sb_has_strict_encoding(sb) || !utf8_validate(um, name))) { + match = 1; + goto out; + } + res = utf8_strncasecmp(um, name, &dirent); + } + +out: + kfree(decrypted_name.name); + if (res < 0) + return res; + return (match || !res); +} +EXPORT_SYMBOL(generic_ci_match); #endif #ifdef CONFIG_FS_ENCRYPTION diff --git a/include/linux/fs.h b/include/linux/fs.h index ff1338109b54..690b37e1db95 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -3281,6 +3281,10 @@ extern int generic_file_fsync(struct file *, loff_t, loff_t, int); extern int generic_check_addressable(unsigned, u64); extern void generic_set_sb_d_ops(struct super_block *sb); +extern int generic_ci_match(const struct inode *parent, + const struct qstr *name, + const struct qstr *folded_name, + const u8 *de_name, u32 de_name_len); static inline bool sb_has_encoding(const struct super_block *sb) { From patchwork Tue Apr 2 15:48:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13614337 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9D20FCD1284 for ; Tue, 2 Apr 2024 15:49:13 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1rrgNs-0004o7-IO; Tue, 02 Apr 2024 15:49:13 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rrgNk-0004nF-M7 for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:05 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=Vc7fqOC7SkJfepNzo44OucZ7wbHiHZxidGx82bq3P88=; b=huGAtuCIkgA7ljreZI20fWBfn3 nSG6UgHybPEGbcO4AlZny7+n1fKTorP4+nWmdYCrq436I1o0xYOfu9ueWLIerLygXqTZI5n2KevtE G7uStBUeBo7i9ruc5e+Xcid6nd7z9K5PukN6RNy49LaCA82TsqYmssvib1Vz2lkBrdho=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=Vc7fqOC7SkJfepNzo44OucZ7wbHiHZxidGx82bq3P88=; b=E1qysrMPKwha3krJTLI/HZJVm6 Tfl1x0wJsAuYwStbl1p+TFakG6Wb11jFxsPWo/y7O4uJOxGvY1aBsbOTac6AFVbwRLZ0vKJqYK187 uXLbrqODSnnjt8GorikPKP1zxiSJ3XccJVBI0BazouPWx+FnAxTlHqFWRzGnY0YgciU0=; Received: from madrid.collaboradmins.com ([46.235.227.194]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1rrgNk-000430-7N for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:05 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1712072933; bh=swtZ6BKu+FGmiqRjglGL90hSAB3JlB+upSuAXL/TJpA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=5Wx1CPg/UKtF2sJ6plB5rzl3lNsw8/eGYXs552hXGpBg+q19pgFt63cUSOIsdpzY6 ukKlyhJdxX6ep5uVRvEJ/+xmtHN1ThZ6e4vV+51IE6Qh/ispMKkqAIkR3itziagQaL TZL+SX2Wjmnq9Mi9w2gSVUq7C+2zCvFsKtWuo0S/Wfa91tYyDMdmpITs5CI9jRs8m/ ZGHx9tJFQKu5L4ZGJUqLpE/ihZAyLuOGv6eF7cB/pdW+7QTuGNPpuAlfbAeL+qjSK1 XdEsX+IZiQ42yelnq61El+NY4eOCzeFtwNPLoK2ljnCf/HQUo9MY7gx9sIPkklLRCN vRHweAwFYhq0Q== Received: from eugen-station.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: ehristev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 5ED8537820E7; Tue, 2 Apr 2024 15:48:52 +0000 (UTC) To: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, jaegeuk@kernel.org, chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Date: Tue, 2 Apr 2024 18:48:37 +0300 Message-Id: <20240402154842.508032-5-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240402154842.508032-1-eugen.hristev@collabora.com> References: <20240402154842.508032-1-eugen.hristev@collabora.com> MIME-Version: 1.0 X-Headers-End: 1rrgNk-000430-7N Subject: [f2fs-dev] [PATCH v15 4/9] ext4: Reuse generic_ci_match for ci comparisons X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Eugen Hristev via Linux-f2fs-devel From: Eugen Hristev Reply-To: Eugen Hristev Cc: krisman@suse.de, brauner@kernel.org, jack@suse.cz, linux-kernel@vger.kernel.org, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, kernel@collabora.com, Gabriel Krisman Bertazi Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Gabriel Krisman Bertazi Instead of reimplementing ext4_match_ci, use the new libfs helper. It also adds a comment explaining why fname->cf_name.name must be checked prior to the encryption hash optimization, because that tripped me before. Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Eugen Hristev --- fs/ext4/namei.c | 91 +++++++++++++++---------------------------------- 1 file changed, 27 insertions(+), 64 deletions(-) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index b96983a4c185..2d0ee232fbe7 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1390,58 +1390,6 @@ static void dx_insert_block(struct dx_frame *frame, u32 hash, ext4_lblk_t block) } #if IS_ENABLED(CONFIG_UNICODE) -/* - * Test whether a case-insensitive directory entry matches the filename - * being searched for. If quick is set, assume the name being looked up - * is already in the casefolded form. - * - * Returns: 0 if the directory entry matches, more than 0 if it - * doesn't match or less than zero on error. - */ -static int ext4_ci_compare(const struct inode *parent, const struct qstr *name, - u8 *de_name, size_t de_name_len, bool quick) -{ - const struct super_block *sb = parent->i_sb; - const struct unicode_map *um = sb->s_encoding; - struct fscrypt_str decrypted_name = FSTR_INIT(NULL, de_name_len); - struct qstr entry = QSTR_INIT(de_name, de_name_len); - int ret; - - if (IS_ENCRYPTED(parent)) { - const struct fscrypt_str encrypted_name = - FSTR_INIT(de_name, de_name_len); - - decrypted_name.name = kmalloc(de_name_len, GFP_KERNEL); - if (!decrypted_name.name) - return -ENOMEM; - ret = fscrypt_fname_disk_to_usr(parent, 0, 0, &encrypted_name, - &decrypted_name); - if (ret < 0) - goto out; - entry.name = decrypted_name.name; - entry.len = decrypted_name.len; - } - - if (quick) - ret = utf8_strncasecmp_folded(um, name, &entry); - else - ret = utf8_strncasecmp(um, name, &entry); - if (ret < 0) { - /* Handle invalid character sequence as either an error - * or as an opaque byte sequence. - */ - if (sb_has_strict_encoding(sb)) - ret = -EINVAL; - else if (name->len != entry.len) - ret = 1; - else - ret = !!memcmp(name->name, entry.name, entry.len); - } -out: - kfree(decrypted_name.name); - return ret; -} - int ext4_fname_setup_ci_filename(struct inode *dir, const struct qstr *iname, struct ext4_filename *name) { @@ -1503,20 +1451,35 @@ static bool ext4_match(struct inode *parent, #if IS_ENABLED(CONFIG_UNICODE) if (IS_CASEFOLDED(parent) && (!IS_ENCRYPTED(parent) || fscrypt_has_encryption_key(parent))) { - if (fname->cf_name.name) { - if (IS_ENCRYPTED(parent)) { - if (fname->hinfo.hash != EXT4_DIRENT_HASH(de) || - fname->hinfo.minor_hash != - EXT4_DIRENT_MINOR_HASH(de)) { + int ret; - return false; - } - } - return !ext4_ci_compare(parent, &fname->cf_name, - de->name, de->name_len, true); + /* + * Just checking IS_ENCRYPTED(parent) below is not + * sufficient to decide whether one can use the hash for + * skipping the string comparison, because the key might + * have been added right after + * ext4_fname_setup_ci_filename(). In this case, a hash + * mismatch will be a false negative. Therefore, make + * sure cf_name was properly initialized before + * considering the calculated hash. + */ + if (IS_ENCRYPTED(parent) && fname->cf_name.name && + (fname->hinfo.hash != EXT4_DIRENT_HASH(de) || + fname->hinfo.minor_hash != EXT4_DIRENT_MINOR_HASH(de))) + return false; + + ret = generic_ci_match(parent, fname->usr_fname, + &fname->cf_name, de->name, + de->name_len); + if (ret < 0) { + /* + * Treat comparison errors as not a match. The + * only case where it happens is on a disk + * corruption or ENOMEM. + */ + return false; } - return !ext4_ci_compare(parent, fname->usr_fname, de->name, - de->name_len, false); + return ret; } #endif From patchwork Tue Apr 2 15:48:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13614339 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 41228CD1284 for ; Tue, 2 Apr 2024 15:49:20 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-4.v29.lw.sourceforge.com) by sfs-ml-4.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1rrgNz-0004cC-FA; Tue, 02 Apr 2024 15:49:19 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-4.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rrgNs-0004bi-7J for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=v6ftTbHgM12Ej1CbNqOgSSzmFGHNiHfAt1+ZNwLLF+c=; b=NSS3Gu9LYAdYCuy1xV2ZO0Yfge Pefuwm+3G3Ju5i8x5j88k6PduH9ZgCR/eQleJQ4W5lcLwgd+rVtzpMI2Stz+PKO9qPQplUx0dcBVn TN/6DYSF7WTdBllLWJAxTvGRjYNReX7Ww6/H6nh9wux5KfOrQ0taIBr4mFibaJO54MbQ=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=v6ftTbHgM12Ej1CbNqOgSSzmFGHNiHfAt1+ZNwLLF+c=; b=L4Tpb2Cd8dBVvN2jFLKAilH7So j5Or7uJ2B1oKT1vBrGk86SE7NbvbsCqtvmxUa74Nzw8JbF4UpTsZtL7gzre/3Uzu4zvYwmDil0s2Y pZyxJVv+hElVMD0S8kk1rGdirrPBkSnRYk2foIuUr2Spm+tzS9U/mgXxquTJyGzu4luE=; Received: from madrid.collaboradmins.com ([46.235.227.194]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1rrgNn-00043E-9F for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1712072934; bh=aRA2g6rcldGcm0eggJ+qgCaUO+InE396o0stDobGMYQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0HtEHEh2LR1L9DM73x3tqIb7Au5sPOcfokP5b64dXKxo5yl8RrHVlc6u5I4lW7Hjb 9EL1C5E5ehXcKa81hZl4JYADNGrmAwS7m/z+Xtkf0x/u6ig8fzKhjwzuKOmrf86/UM zygR/A/XXsOsOkkrJHR+cxTm9Ne9XL6W6feL9MkK2tlTzqH51j55tTmMaoxYzBWMNx /i1gLsJr4ZAgbwxf4m2yDHYcINZNMcH+dCJbHV5fcDXD40MMA8mpqU9QOILo6BNfZk 9yzjP5vjtSOIT7MA3lfhwtmLk6XDUyGqQURzOCfQOlLBA1c9oUBk1FSVCBWkSp8RdJ 7zC9Ogq+QvkbQ== Received: from eugen-station.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: ehristev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 86AF837820F8; Tue, 2 Apr 2024 15:48:53 +0000 (UTC) To: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, jaegeuk@kernel.org, chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Date: Tue, 2 Apr 2024 18:48:38 +0300 Message-Id: <20240402154842.508032-6-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240402154842.508032-1-eugen.hristev@collabora.com> References: <20240402154842.508032-1-eugen.hristev@collabora.com> MIME-Version: 1.0 X-Headers-End: 1rrgNn-00043E-9F Subject: [f2fs-dev] [PATCH v15 5/9] f2fs: Reuse generic_ci_match for ci comparisons X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Eugen Hristev via Linux-f2fs-devel From: Eugen Hristev Reply-To: Eugen Hristev Cc: krisman@suse.de, brauner@kernel.org, jack@suse.cz, linux-kernel@vger.kernel.org, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, kernel@collabora.com, Gabriel Krisman Bertazi Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Gabriel Krisman Bertazi Now that ci_match is part of libfs, make f2fs reuse it instead of having a different implementation. Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Eugen Hristev --- fs/f2fs/dir.c | 58 ++++----------------------------------------------- 1 file changed, 4 insertions(+), 54 deletions(-) diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 3b454f355f15..88b0045d0c4f 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -185,58 +185,6 @@ static struct f2fs_dir_entry *find_in_block(struct inode *dir, return f2fs_find_target_dentry(&d, fname, max_slots); } -#if IS_ENABLED(CONFIG_UNICODE) -/* - * Test whether a case-insensitive directory entry matches the filename - * being searched for. - * - * Returns 1 for a match, 0 for no match, and -errno on an error. - */ -static int f2fs_match_ci_name(const struct inode *dir, const struct qstr *name, - const u8 *de_name, u32 de_name_len) -{ - const struct super_block *sb = dir->i_sb; - const struct unicode_map *um = sb->s_encoding; - struct fscrypt_str decrypted_name = FSTR_INIT(NULL, de_name_len); - struct qstr entry = QSTR_INIT(de_name, de_name_len); - int res; - - if (IS_ENCRYPTED(dir)) { - const struct fscrypt_str encrypted_name = - FSTR_INIT((u8 *)de_name, de_name_len); - - if (WARN_ON_ONCE(!fscrypt_has_encryption_key(dir))) - return -EINVAL; - - decrypted_name.name = kmalloc(de_name_len, GFP_KERNEL); - if (!decrypted_name.name) - return -ENOMEM; - res = fscrypt_fname_disk_to_usr(dir, 0, 0, &encrypted_name, - &decrypted_name); - if (res < 0) - goto out; - entry.name = decrypted_name.name; - entry.len = decrypted_name.len; - } - - res = utf8_strncasecmp_folded(um, name, &entry); - /* - * In strict mode, ignore invalid names. In non-strict mode, - * fall back to treating them as opaque byte sequences. - */ - if (res < 0 && !sb_has_strict_encoding(sb)) { - res = name->len == entry.len && - memcmp(name->name, entry.name, name->len) == 0; - } else { - /* utf8_strncasecmp_folded returns 0 on match */ - res = (res == 0); - } -out: - kfree(decrypted_name.name); - return res; -} -#endif /* CONFIG_UNICODE */ - static inline int f2fs_match_name(const struct inode *dir, const struct f2fs_filename *fname, const u8 *de_name, u32 de_name_len) @@ -245,8 +193,10 @@ static inline int f2fs_match_name(const struct inode *dir, #if IS_ENABLED(CONFIG_UNICODE) if (fname->cf_name.name) - return f2fs_match_ci_name(dir, &fname->cf_name, - de_name, de_name_len); + return generic_ci_match(dir, fname->usr_fname, + &fname->cf_name, + de_name, de_name_len); + #endif f.usr_fname = fname->usr_fname; f.disk_name = fname->disk_name; From patchwork Tue Apr 2 15:48:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13614342 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 57C1ECD1293 for ; Tue, 2 Apr 2024 15:49:23 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-1.v29.lw.sourceforge.com) by sfs-ml-1.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1rrgO2-0003HF-N2; Tue, 02 Apr 2024 15:49:23 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-1.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rrgNt-0003Gj-K6 for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=ih2S6pyJj+FNOX2FaVqCPxiJGRm/mQyzBzMM/MkTjGU=; b=N/8WUCqfqH2DFkHvXUymxjPVQu 9B84YpilNqyq28bEfTNkj18aijrCtcDWm2LwTq6NFdH2AffzNrVL1ocX5gpwtPPi6AkiX/KOXb0ll mRwK183q/bI2owbvgdmWtkSG+WoUcv3f2aMV/UgqAQInmpc0On2kQuMKY8lBgDgb8JLE=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=ih2S6pyJj+FNOX2FaVqCPxiJGRm/mQyzBzMM/MkTjGU=; b=OkKor18hvV75JQ0MCW3qxtnIEw hcO2OXxvGzVBei+l+endWHdnaAUHmUoHi90/y3/JCbyptXfhZCCiSLLOIpZMRXvAuWXh/MykLxzC1 SLz42mDeZrbKPjopyXwGw3JqlPefamtbwDdzzq9FUI9Wcmab3SUsTUs83lXPI7hyqhRE=; Received: from madrid.collaboradmins.com ([46.235.227.194]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1rrgNs-00043w-P4 for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1712072935; bh=3qqbmy6OIcOoO07cO28FmCqjE206p+74Pkl9CCe0L8Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SgZfM4j8m0wWn0DNkDq46LDfpOBCGT3bILSbqHsGSkUxpPo4b81IwwPrajdoCRvtX I9p71M+M9+37cLUTdwD9efeNnm8NGbKKT5AELMTUDi+9Js+xv+kx/NzGqOxwd7Ary/ zG2nBh7kWJFz5w1UaHVgfrRvJ1LcMygbfanLp168vvYaX6KcLSAjeM9+xOXkdp3+KC Mh0eMbgI92pS+V8giRfPK3NFpk2zOtnmQHmurb5O5fIFnUeX59s+UaTUpOtsnLHDU5 gDahwNPmpCA0ASioL89EdUSTwGD5AVZwXkuaE/YTKkvWtgBr24Jjk1Gjp0soSK0qtV LFrDgky450Pxw== Received: from eugen-station.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: ehristev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id BA3A037820F5; Tue, 2 Apr 2024 15:48:54 +0000 (UTC) To: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, jaegeuk@kernel.org, chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Date: Tue, 2 Apr 2024 18:48:39 +0300 Message-Id: <20240402154842.508032-7-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240402154842.508032-1-eugen.hristev@collabora.com> References: <20240402154842.508032-1-eugen.hristev@collabora.com> MIME-Version: 1.0 X-Headers-End: 1rrgNs-00043w-P4 Subject: [f2fs-dev] [PATCH v15 6/9] ext4: Log error when lookup of encoded dentry fails X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Eugen Hristev via Linux-f2fs-devel From: Eugen Hristev Reply-To: Eugen Hristev Cc: krisman@suse.de, brauner@kernel.org, jack@suse.cz, linux-kernel@vger.kernel.org, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, kernel@collabora.com, Gabriel Krisman Bertazi Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Gabriel Krisman Bertazi If the volume is in strict mode, ext4_ci_compare can report a broken encoding name. This will not trigger on a bad lookup, which is caught earlier, only if the actual disk name is bad. Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Eugen Hristev --- fs/ext4/namei.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 2d0ee232fbe7..3268cf45d9db 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1477,6 +1477,9 @@ static bool ext4_match(struct inode *parent, * only case where it happens is on a disk * corruption or ENOMEM. */ + if (ret == -EINVAL) + EXT4_ERROR_INODE(parent, + "Directory contains filename that is invalid UTF-8"); return false; } return ret; From patchwork Tue Apr 2 15:48:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13614338 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2BC69CD1293 for ; Tue, 2 Apr 2024 15:49:15 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-3.v29.lw.sourceforge.com) by sfs-ml-3.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1rrgNu-0005Eq-Ch; Tue, 02 Apr 2024 15:49:14 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-3.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rrgNo-0005EI-Gu for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=CHRzt4jsIq4Oa125HeJ+JV37wGYiasMe0OFhsxhy3w8=; b=Fayn2UhgozalRGqeIK400q9aF7 AV+q0qZHkYpt3ubhYp6N2HwAqhIU0yMZqs38SIaZH5RbERd/SawHt1dJjB7MMM0CjQdJXvgGE7zJ/ IhUjpXUPevfTnuZ6HXRqNIEiVUyAD5NW30dXlIoRQ13EeIOpqzzU5ajCsH1u42jYkY5Q=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=CHRzt4jsIq4Oa125HeJ+JV37wGYiasMe0OFhsxhy3w8=; b=GmwQakR178kZngpsga3BiMBOi0 Xkf5jYJppaYCbKBWK5puoOqPOgL7evHTHzccPN6+3rIjkTvVObz0yCkXBe1fqM22iw6xfa1TjmkYe esxSku+J+jJnLRyE2bhdhB6sNm9oajv7ukCRk9DpQ0KeM5UO+rm2UdSWpUmn56yD1yFE=; Received: from madrid.collaboradmins.com ([46.235.227.194]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1rrgNn-00043K-Sx for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1712072936; bh=IfRmBs/VQkfKjJFkvo6pie00L4VVXFYihT/akWQE4ic=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DOrp/SL4kYewXK66WVjQc1/mDm1Tmp7wW7CniDjHoGxjckveBZJKXBF9PkUkRw0dt /8Gg8nKilcx92NCErLQF4hTJ4XO+qzFjh8nAz4ZgNOJduwAlISMXqHwAsJp4yXesCR F9RXo5Lhhj1Bn3DsE/ZELAptMvrhcYnSANtSj9Eq6rR51dUIBKiU7NZBHxQWdDgI2L qlGy5py7/8LavzFbWm8PDVEhOzU8owFrpXtKV7dF3oAqWmx4d8Q8RiTeYdx7GK8pme ulyb8ATrbw+S3jrqBCwTbcxMQN4OI+ybvlQ9vy5fDK4oZSfvPhVg3PHn5/MKM+EoX9 KXXd9Hw+88QtA== Received: from eugen-station.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: ehristev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id E417337820F9; Tue, 2 Apr 2024 15:48:55 +0000 (UTC) To: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, jaegeuk@kernel.org, chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Date: Tue, 2 Apr 2024 18:48:40 +0300 Message-Id: <20240402154842.508032-8-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240402154842.508032-1-eugen.hristev@collabora.com> References: <20240402154842.508032-1-eugen.hristev@collabora.com> MIME-Version: 1.0 X-Headers-End: 1rrgNn-00043K-Sx Subject: [f2fs-dev] [PATCH v15 7/9] f2fs: Log error when lookup of encoded dentry fails X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Eugen Hristev via Linux-f2fs-devel From: Eugen Hristev Reply-To: Eugen Hristev Cc: krisman@suse.de, brauner@kernel.org, jack@suse.cz, linux-kernel@vger.kernel.org, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, kernel@collabora.com Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net If the volume is in strict mode, generi c_ci_compare can report a broken encoding name. This will not trigger on a bad lookup, which is caught earlier, only if the actual disk name is bad. Suggested-by: Gabriel Krisman Bertazi Signed-off-by: Eugen Hristev --- fs/f2fs/dir.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 88b0045d0c4f..64286d80dd30 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -192,11 +192,16 @@ static inline int f2fs_match_name(const struct inode *dir, struct fscrypt_name f; #if IS_ENABLED(CONFIG_UNICODE) - if (fname->cf_name.name) - return generic_ci_match(dir, fname->usr_fname, - &fname->cf_name, - de_name, de_name_len); - + if (fname->cf_name.name) { + int ret = generic_ci_match(dir, fname->usr_fname, + &fname->cf_name, + de_name, de_name_len); + if (ret == -EINVAL) + f2fs_warn(F2FS_SB(dir->i_sb), + "Directory contains filename that is invalid UTF-8"); + + return ret; + } #endif f.usr_fname = fname->usr_fname; f.disk_name = fname->disk_name; From patchwork Tue Apr 2 15:48:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13614340 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 91213C6FD1F for ; Tue, 2 Apr 2024 15:49:20 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1rrgNw-0004ox-OY; Tue, 02 Apr 2024 15:49:17 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rrgNt-0004oU-FT for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:14 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=GlcgOwAkdsa5n360WA+LCqFWY+8FCItsAnbQNAEewIo=; b=alsVqmAbJjrlm8KY8F5tYXQboY ZJnq+pJQ1MuccaI4JmHmArbU1k3szuVirdFMSyLO5eqMsk2GKV3csOtwnZWrTt1IJDLju0frBZFIi zMqtK0OrYek9WvLfMyYf9wMcRIqLuoRsPHH5LajX/SyqQ5UJ4VQ4QV/4Tc/bg9gP6Sb4=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=GlcgOwAkdsa5n360WA+LCqFWY+8FCItsAnbQNAEewIo=; b=S3GjaMvuUblyvyGR5y2TptXsaK 43FRflHV4dcJIiH1C1SMWePlSmcAcmEZhRbo6+efLl4/7zSDCGJDezO8jTExNeMPv1PZsWZdRHJeS 1S55FduqpQ4P5SIEplchapomdZLCkSCAlV0GMkT7T79DZj3ndrUQxW9jsFE/baPqz+8o=; Received: from madrid.collaboradmins.com ([46.235.227.194]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1rrgNt-000440-0g for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:14 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1712072938; bh=T1flGX4U2b3MklKHYXqMuwFU6gzEg9+QkC8LDI9FchY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OOp3wELEyrUsGGRo4ggcjf7XYfAi0Xh2Gxx5wYSu3TMwsGyVCrErEQNjEZtARwbIx xLLV91e2KqEXy2mztTMQv1oHzrccr4TeZBBiCdeDeEN3ahWhCaZ8YQBqkwRDAjiRzB yyN7ImcHDoT6CLMQY24i9f3uYUuE7IDrK/TbDuvqIbo+OXgBKp38450Qrih2Z3xaLb xAOsewU/Wmc/C79EEq1cLyXtHyCK0K3ctisj284xHgc9tcbIns5QSXTUEuSfXIjKLG RHPslfkJevcsjKn/4KvwqujOZTIHHgYqcBMBxE092HrDdKYFJh3TdpvD5pNBlrPUnq dR8CSdKFrCrSw== Received: from eugen-station.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: ehristev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 1F09C378212C; Tue, 2 Apr 2024 15:48:57 +0000 (UTC) To: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, jaegeuk@kernel.org, chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Date: Tue, 2 Apr 2024 18:48:41 +0300 Message-Id: <20240402154842.508032-9-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240402154842.508032-1-eugen.hristev@collabora.com> References: <20240402154842.508032-1-eugen.hristev@collabora.com> MIME-Version: 1.0 X-Headers-End: 1rrgNt-000440-0g Subject: [f2fs-dev] [PATCH v15 8/9] ext4: Move CONFIG_UNICODE defguards into the code flow X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Eugen Hristev via Linux-f2fs-devel From: Eugen Hristev Reply-To: Eugen Hristev Cc: krisman@suse.de, brauner@kernel.org, jack@suse.cz, linux-kernel@vger.kernel.org, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, kernel@collabora.com, Gabriel Krisman Bertazi Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Gabriel Krisman Bertazi Instead of a bunch of ifdefs, make the unicode built checks part of the code flow where possible, as requested by Torvalds. Signed-off-by: Gabriel Krisman Bertazi [eugen.hristev@collabora.com: port to 6.8-rc3] Signed-off-by: Eugen Hristev --- fs/ext4/crypto.c | 10 ++-------- fs/ext4/ext4.h | 33 +++++++++++++++++++++------------ fs/ext4/namei.c | 14 +++++--------- fs/ext4/super.c | 4 +--- 4 files changed, 29 insertions(+), 32 deletions(-) diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c index 7ae0b61258a7..0a056d97e640 100644 --- a/fs/ext4/crypto.c +++ b/fs/ext4/crypto.c @@ -31,11 +31,10 @@ int ext4_fname_setup_filename(struct inode *dir, const struct qstr *iname, ext4_fname_from_fscrypt_name(fname, &name); -#if IS_ENABLED(CONFIG_UNICODE) err = ext4_fname_setup_ci_filename(dir, iname, fname); if (err) ext4_fname_free_filename(fname); -#endif + return err; } @@ -51,11 +50,9 @@ int ext4_fname_prepare_lookup(struct inode *dir, struct dentry *dentry, ext4_fname_from_fscrypt_name(fname, &name); -#if IS_ENABLED(CONFIG_UNICODE) err = ext4_fname_setup_ci_filename(dir, &dentry->d_name, fname); if (err) ext4_fname_free_filename(fname); -#endif return err; } @@ -70,10 +67,7 @@ void ext4_fname_free_filename(struct ext4_filename *fname) fname->usr_fname = NULL; fname->disk_name.name = NULL; -#if IS_ENABLED(CONFIG_UNICODE) - kfree(fname->cf_name.name); - fname->cf_name.name = NULL; -#endif + ext4_fname_free_ci_filename(fname); } static bool uuid_is_zero(__u8 u[16]) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 4061d11b9763..c68f48f706cd 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2740,8 +2740,25 @@ ext4_fsblk_t ext4_inode_to_goal_block(struct inode *); #if IS_ENABLED(CONFIG_UNICODE) extern int ext4_fname_setup_ci_filename(struct inode *dir, - const struct qstr *iname, - struct ext4_filename *fname); + const struct qstr *iname, + struct ext4_filename *fname); + +static inline void ext4_fname_free_ci_filename(struct ext4_filename *fname) +{ + kfree(fname->cf_name.name); + fname->cf_name.name = NULL; +} +#else +static inline int ext4_fname_setup_ci_filename(struct inode *dir, + const struct qstr *iname, + struct ext4_filename *fname) +{ + return 0; +} + +static inline void ext4_fname_free_ci_filename(struct ext4_filename *fname) +{ +} #endif /* ext4 encryption related stuff goes here crypto.c */ @@ -2764,16 +2781,11 @@ static inline int ext4_fname_setup_filename(struct inode *dir, int lookup, struct ext4_filename *fname) { - int err = 0; fname->usr_fname = iname; fname->disk_name.name = (unsigned char *) iname->name; fname->disk_name.len = iname->len; -#if IS_ENABLED(CONFIG_UNICODE) - err = ext4_fname_setup_ci_filename(dir, iname, fname); -#endif - - return err; + return ext4_fname_setup_ci_filename(dir, iname, fname); } static inline int ext4_fname_prepare_lookup(struct inode *dir, @@ -2785,10 +2797,7 @@ static inline int ext4_fname_prepare_lookup(struct inode *dir, static inline void ext4_fname_free_filename(struct ext4_filename *fname) { -#if IS_ENABLED(CONFIG_UNICODE) - kfree(fname->cf_name.name); - fname->cf_name.name = NULL; -#endif + ext4_fname_free_ci_filename(fname); } static inline int ext4_ioctl_get_encryption_pwsalt(struct file *filp, diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 3268cf45d9db..a5d9e5b01015 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1834,8 +1834,7 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi } } -#if IS_ENABLED(CONFIG_UNICODE) - if (!inode && IS_CASEFOLDED(dir)) { + if (IS_ENABLED(CONFIG_UNICODE) && !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 @@ -1843,7 +1842,7 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi */ return NULL; } -#endif + return d_splice_alias(inode, dentry); } @@ -3173,16 +3172,14 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry) ext4_fc_track_unlink(handle, dentry); retval = ext4_mark_inode_dirty(handle, dir); -#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 ext4_lookup(), when it is better * supported by the VFS for the CI case. */ - if (IS_CASEFOLDED(dir)) + if (IS_ENABLED(CONFIG_UNICODE) && IS_CASEFOLDED(dir)) d_invalidate(dentry); -#endif end_rmdir: brelse(bh); @@ -3284,16 +3281,15 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry) goto out_trace; retval = __ext4_unlink(dir, &dentry->d_name, d_inode(dentry), dentry); -#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 ext4_lookup(), when it is better * supported by the VFS for the CI case. */ - if (IS_CASEFOLDED(dir)) + if (IS_ENABLED(CONFIG_UNICODE) && IS_CASEFOLDED(dir)) d_invalidate(dentry); -#endif out_trace: trace_ext4_unlink_exit(dentry, retval); diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 215b4614eb15..179083728b4b 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3609,14 +3609,12 @@ int ext4_feature_set_ok(struct super_block *sb, int readonly) return 0; } -#if !IS_ENABLED(CONFIG_UNICODE) - if (ext4_has_feature_casefold(sb)) { + if (!IS_ENABLED(CONFIG_UNICODE) && ext4_has_feature_casefold(sb)) { ext4_msg(sb, KERN_ERR, "Filesystem with casefold feature cannot be " "mounted without CONFIG_UNICODE"); return 0; } -#endif if (readonly) return 1; From patchwork Tue Apr 2 15:48:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13614341 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E0FCDCD1284 for ; Tue, 2 Apr 2024 15:49:22 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-3.v29.lw.sourceforge.com) by sfs-ml-3.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1rrgO2-0005Fu-5r; Tue, 02 Apr 2024 15:49:22 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-3.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rrgNv-0005F8-8m for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:16 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=hIA1FrSOg9rkkCxr51pHsWw60766xuJYkqrstFQYRHw=; b=E0D5/Dcb6viQkl8HkpqkW5+gEr CabonSH8s7tyg2floUGvhtPh6OVKEPDLlK1tM6sCuEQ16zWvEgQxRn+Wyc5/6YeY+0SFioqQ6zgyD V+ZypiPkafkXf1xE+bSgJMtbkGZQbOwhiR3YguA/BG0usSUoxCmJd2GuetcugpFjCam0=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=hIA1FrSOg9rkkCxr51pHsWw60766xuJYkqrstFQYRHw=; b=mDGPJ/OK8fu8NwF4YwjM9YEEOq DUd9NSjbQNN7fLAlDf4bpABBnlwwr4T17iYFm1XLL2LXLYucQS/hvo5oGErzeSXMeHIb0KJXrqRSg cVtvlkShMQRnAJO/bzHbFLk4DUDvyt1H0dFKMJboV9Cnx8CmQjga6Yj9lqt4jzWS8cnM=; Received: from madrid.collaboradmins.com ([46.235.227.194]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1rrgNu-00044E-GV for linux-f2fs-devel@lists.sourceforge.net; Tue, 02 Apr 2024 15:49:15 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1712072939; bh=NYwDnN28mEZsfcXBv2JU5FVxAioxdPfAjfdUmE66h5Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ojBkiOGEd8EryBXKAd1A3l+NAwTMwOHa6mKZLdO8lS5qjUHZhyZCR6XBbQ9y43WN/ GRxroD/u5YECm9ZHmyi4n23vp3p6mdumSQqQq/drrpVQFokwZlkP6GhtLk62oBDxMe AOY6bRpu0vJoL75ZYoNv1To3WBxNDEl9xUc9fPbQJA4XHnJZ0K3czPpt9oroMH/aGz WlhHmyQRtMLKerwc9F2+k91p56aT/kHBx2Qx5gQpI2RMv+st5DaC1n2U2t6qsahW28 pzuMV6Mka7xjfWcn/kELQpIyjUi4KffCOabcFge2nUm0IFDtM6sU7uHvni4mQOZgB/ FpdkZ+bOeJR1Q== Received: from eugen-station.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: ehristev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 51E52378212E; Tue, 2 Apr 2024 15:48:58 +0000 (UTC) To: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, jaegeuk@kernel.org, chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Date: Tue, 2 Apr 2024 18:48:42 +0300 Message-Id: <20240402154842.508032-10-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240402154842.508032-1-eugen.hristev@collabora.com> References: <20240402154842.508032-1-eugen.hristev@collabora.com> MIME-Version: 1.0 X-Headers-End: 1rrgNu-00044E-GV Subject: [f2fs-dev] [PATCH v15 9/9] f2fs: Move CONFIG_UNICODE defguards into the code flow X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Eugen Hristev via Linux-f2fs-devel From: Eugen Hristev Reply-To: Eugen Hristev Cc: krisman@suse.de, brauner@kernel.org, jack@suse.cz, linux-kernel@vger.kernel.org, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, kernel@collabora.com, Gabriel Krisman Bertazi Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Gabriel Krisman Bertazi Instead of a bunch of ifdefs, make the unicode built checks part of the code flow where possible, as requested by Torvalds. Signed-off-by: Gabriel Krisman Bertazi [eugen.hristev@collabora.com: port to 6.8-rc3] Signed-off-by: Eugen Hristev --- fs/f2fs/namei.c | 10 ++++------ fs/f2fs/super.c | 8 ++++---- 2 files changed, 8 insertions(+), 10 deletions(-) diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index f7f63a567d86..5da1aae7d23a 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -576,8 +576,7 @@ 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)) { + if (IS_ENABLED(CONFIG_UNICODE) && !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 @@ -586,7 +585,7 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, 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); @@ -639,16 +638,15 @@ 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)) + if (IS_ENABLED(CONFIG_UNICODE) && IS_CASEFOLDED(dir)) d_invalidate(dentry); -#endif + if (IS_DIRSYNC(dir)) f2fs_sync_fs(sbi->sb, 1); fail: diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 313024f5c90c..c4325cc066c6 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -306,7 +306,7 @@ struct kmem_cache *f2fs_cf_name_slab; static int __init f2fs_create_casefold_cache(void) { f2fs_cf_name_slab = f2fs_kmem_cache_create("f2fs_casefolded_name", - F2FS_NAME_LEN); + F2FS_NAME_LEN); return f2fs_cf_name_slab ? 0 : -ENOMEM; } @@ -1354,13 +1354,13 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) return -EINVAL; } #endif -#if !IS_ENABLED(CONFIG_UNICODE) - if (f2fs_sb_has_casefold(sbi)) { + + if (!IS_ENABLED(CONFIG_UNICODE) && f2fs_sb_has_casefold(sbi)) { f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE"); return -EINVAL; } -#endif + /* * The BLKZONED feature indicates that the drive was formatted with * zone alignment optimization. This is optional for host-aware