From patchwork Mon Feb 19 07:44:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13562273 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CFB2721344; Mon, 19 Feb 2024 07:45:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328716; cv=none; b=jpXicKhoo8WLYCYi5z3BQql93cb3qsiftGYnM/iqe2fLtq2q/zoQNUF0vFZUshgdk706Ys//LKVvrfwONLSyqOXY2PTvgCCGfBf2vuq3jgZmg4dSx4HpBxVglINg+RtEohhUOpdHKGgPY0stihyxDkHs92P0Fb/+ywb0wjZ1diE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328716; c=relaxed/simple; bh=sYUTU/89PFPnPBoR5kfzfYqhAM5p15Bl509BAaBxeuk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=LM7krp2Tldm0ODC6L6QYNDtqVPlIXazrz4BorGQQRzcqcovS1l4T32m2E1KrojoMjrC0GnnxxLZSgyOigUq4qMSy/NT4yKxL5nRBVSuFcAtGqrvLGDpmCOrzpYbTL74MyquhkbYQ/WgZ+KJKlZkmicLv/L9G+3BAgSZPsTehfds= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=MrYiXDSh; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="MrYiXDSh" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1708328713; bh=sYUTU/89PFPnPBoR5kfzfYqhAM5p15Bl509BAaBxeuk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MrYiXDShaKHC1Ig7K9Qso9gBz86AfFZ3JFz4PXxC1iolNqEnF+rqpLfF7Qn8v58wc n7UBOUv1SHxquk8lnAy6P2PutyRtZPyl/UH/eguM6hYRpKSsv2/AQR32j4Mbs8kcb+ eAEkq+cWa643LYGMWTE78UJ8L1XOJbrFXFGK/HCdnoouvlWCcseKDnpL4LDgx4cUeS J0TR1CXYa3WmHJJWnZXXS0TPGQJf/NOjSetJtinePSjmiMY3821jYbf1jkn80Hc4iV jGd58vCaysq1sAlsgk1y4OrFkyp9+eUoaHF62eGOEUAf53AFYkXVntyGiJwOjnnZGY gtAkDjW9UrKzg== 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 48BFA3781FD3; Mon, 19 Feb 2024 07:45:09 +0000 (UTC) From: Eugen Hristev 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 Cc: linux-kernel@vger.kernel.org, kernel@collabora.com, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, krisman@suse.de, Gabriel Krisman Bertazi , Eric Biggers Subject: [PATCH v11 1/8] ext4: Simplify the handling of cached insensitive names Date: Mon, 19 Feb 2024 09:44:50 +0200 Message-Id: <20240219074457.24578-2-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240219074457.24578-1-eugen.hristev@collabora.com> References: <20240219074457.24578-1-eugen.hristev@collabora.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Gabriel Krisman Bertazi Keeping it as qstr avoids the unnecessary conversion in ext4_match Reviewed-by: Eric Biggers 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 023571f8dd1b..932bae88b4a7 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2508,7 +2508,7 @@ 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 05b647e6bc19..e554c5a62ba9 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 Mon Feb 19 07:44:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13562274 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A2495224EC; Mon, 19 Feb 2024 07:45:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328721; cv=none; b=gbLEA8O6YQirtVi009PtGXV5SCpnuxnSlEwm0G9YqTQVQ4S4eonAbkA1FDiXhzPZeCrgvuBPR8CDWEeQ4Z4OORmSaXVlhOhSrPhZxJoNQd+4o9MelYtmzTi1C+ERM0dySN5L1yPXly1IDcSqXvfsHPM7Fu9Ai0EaM/Rp1j/87tM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328721; c=relaxed/simple; bh=ZmbHA48mdcAgo9rPreneBpGW4T17Nyg3IwTQS03RZdo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=nelm3R1B/Kw2IdWRV52knYCQxi1gTDLghWJ+vswf49h1PKlAj1cMd8hRQL90tpNHsrcw3mVCvYgnP+2SjUrkt+V5rGZCE4hM4Q+Xw60KoCrjgYqQ1LjtE7BCCDcTkKW2TjakL9+fIFn7Eo+8VuM+Qq5BjzGiAx2Pa/Bq504O644= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=Uq9QFaPX; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="Uq9QFaPX" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1708328718; bh=ZmbHA48mdcAgo9rPreneBpGW4T17Nyg3IwTQS03RZdo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Uq9QFaPXRa34aDTzykslqcdjsR3Da/Z95l8Iinpkgmvl6s6v0YCZFJMqZzJ5FKKKr AQkRezSJzXP9LSZ/fABMpUtqI97y17bKf+sSFrHEyiXplzSie5kG7mOXfV78P3xj4T Xt5A4PhRuczGC7taoCFx4V63KALnRhBO7iBlrXKtpdssmmokVGPQYA/E+1CCxqGjhb uOeSwqauRhKlFQ7Ugy+5/IaoZZmwDuoiTpkKS1zeMcNwv5dGnB9O04/lLGvgGf7+GD /CioDSifYqgehrqZf2AIJJQXlOSC3i+SxaoOfkF+IJbFxaM6jorfs3CdzJQUZQnYar tK9apEStsMwiA== 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 DC7053782084; Mon, 19 Feb 2024 07:45:13 +0000 (UTC) From: Eugen Hristev 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 Cc: linux-kernel@vger.kernel.org, kernel@collabora.com, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, krisman@suse.de, Gabriel Krisman Bertazi , Eric Biggers Subject: [PATCH v11 2/8] f2fs: Simplify the handling of cached insensitive names Date: Mon, 19 Feb 2024 09:44:51 +0200 Message-Id: <20240219074457.24578-3-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240219074457.24578-1-eugen.hristev@collabora.com> References: <20240219074457.24578-1-eugen.hristev@collabora.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Gabriel Krisman Bertazi Keeping it as qstr avoids the unnecessary conversion in f2fs_match Reviewed-by: Eric Biggers Signed-off-by: Gabriel Krisman Bertazi [eugen.hristev@collabora.com: port to 6.8-rc3] Signed-off-by: Eugen Hristev --- fs/f2fs/dir.c | 53 ++++++++++++++++++++++++++-------------------- fs/f2fs/f2fs.h | 17 ++++++++++++++- fs/f2fs/recovery.c | 5 +---- 3 files changed, 47 insertions(+), 28 deletions(-) diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 3f20d94e12f9..f5b65cf36393 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 84c9fead3ad4..2ff8e52642ec 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -530,7 +530,7 @@ 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 }; @@ -3533,8 +3533,23 @@ int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir, /* * dir.c */ +unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de); +#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 aad1d1a9b3d6..8e8501a3a8e0 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 Mon Feb 19 07:44:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13562275 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4B1FC20DEB; Mon, 19 Feb 2024 07:45:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328725; cv=none; b=UJ2Rk4qPKp/Do6JtbYyVoOdrwj90m+5U8ijwYtM+jjTGwEK+1ZVLeUNU9T9XmphGJLi3bZ+g0pSG++Ntm1MM9v7Df8OFE9a3cBmszCr7HrpQR0WkY4CXpPrrGXiwi3lz0t+6iI3c4jAdhsVTjoUUUT2upgpPIT4kSSU+PvPCCUg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328725; c=relaxed/simple; bh=U7EXJvUhnoJ1TPYIL6nsMvXQA9YnijdjvHehr/j4+oM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Z8F7KcaMFHAwWeKgClMhRInj8YWDcXixR1U50ehP8QYolreCWOGwQ/BzItvCLmw2AwAJhrAYdxHhInhH8lzODWYKCOVEe1GNEifsHHV98v9Y40P6NH2V+pdKd/oWSPUGMvngKBm8ZNKoJZhXtYvy0NyO0yFxtJvxwaIA9nHS20Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=Sznpx52p; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="Sznpx52p" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1708328722; bh=U7EXJvUhnoJ1TPYIL6nsMvXQA9YnijdjvHehr/j4+oM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Sznpx52purKWjq33L2Kl8iu8Arwz3fqSmqIUQY29gH7mYz1ibYFDy00XcrRWKJZW3 UccyJSWZbZrS6sTMIF4cxQL7qhWiUHji9VMnlC/gffjAuSopQOvzJ5vcfcQ4y/g7h8 tYm4uQ8xW+2AlRDJq9i2RurK2T5/dOMOa+X7JvplxeY6npz8Z9VF5HQexDOCGTQqSH 3pVCuGEdAmfC11XnGBK/W6wYTzS54bA15EdnV95AqijDO0KRcdtHt1vTW2Sp2Q17V+ gGVm8QjalKYJkjnutZx3Q+X1FavDe94JLYr64m4upPqtaJ325jX+o+fsxdEyNJItzP jIkEWTNrTMEbA== 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 95D8B378201D; Mon, 19 Feb 2024 07:45:18 +0000 (UTC) From: Eugen Hristev 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 Cc: linux-kernel@vger.kernel.org, kernel@collabora.com, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, krisman@suse.de, Gabriel Krisman Bertazi , Eric Biggers Subject: [PATCH v11 3/8] libfs: Introduce case-insensitive string comparison helper Date: Mon, 19 Feb 2024 09:44:52 +0200 Message-Id: <20240219074457.24578-4-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240219074457.24578-1-eugen.hristev@collabora.com> References: <20240219074457.24578-1-eugen.hristev@collabora.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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. Reviewed-by: Eric Biggers Signed-off-by: Gabriel Krisman Bertazi [eugen.hristev@collabora.com: port to 6.8-rc4] Signed-off-by: Eugen Hristev --- fs/libfs.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++ include/linux/fs.h | 4 +++ 2 files changed, 71 insertions(+) diff --git a/fs/libfs.c b/fs/libfs.c index bb18884ff20e..31c4cd156576 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -1773,6 +1773,73 @@ static const struct dentry_operations generic_ci_dentry_ops = { .d_hash = generic_ci_d_hash, .d_compare = generic_ci_d_compare, }; + +/** + * generic_ci_match() - Match a name (case-insensitively) with a dirent. + * @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, match = false; + + 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; + } + + if (folded_name->name) + res = utf8_strncasecmp_folded(um, folded_name, &dirent); + else + res = utf8_strncasecmp(um, name, &dirent); + + if (!res) + match = true; + else if (res < 0 && !sb_has_strict_encoding(sb)) { + /* + * In non-strict mode, fallback to a byte comparison if + * the names have invalid characters. + */ + res = 0; + match = ((name->len == dirent.len) && + !memcmp(name->name, dirent.name, dirent.len)); + } + +out: + kfree(decrypted_name.name); + return (res >= 0) ? 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 820b93b2917f..7af691ff8d44 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -3296,6 +3296,10 @@ extern int generic_file_fsync(struct file *, loff_t, loff_t, int); extern int generic_check_addressable(unsigned, u64); extern void generic_set_encrypted_ci_d_ops(struct dentry *dentry); +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 Mon Feb 19 07:44:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13562276 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B6E6B23766; Mon, 19 Feb 2024 07:45:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328730; cv=none; b=Un4inuVvqo+GZVUtihDQkgozBKp8z8yo9D8aiqpmucw2x1LWUpBXqfFalxGW67tQmniMBLUQNx34sHCe5D7z0xPCeohSFwbVvLt8EzEvDJJpuZcYrS8NRKU55uCOi6BgMsaVQ+S1AACUubiPjjAKI9hI5sMopOfk30T7TrHaujw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328730; c=relaxed/simple; bh=Hp90mLjR44WCv/VB4t8dflfSiAXrxxn0/qF/zsP/e4I=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=TRWf9eEgeT7TOHFppHj1jHwwlMZmufcZ0PmpTk7ypg3ARtMMhrqURmjQSvVQVtxZnn0qIiaqM3EmBVqYaN3MEL761+22koKZKsb5Tnpy0adw2ZnbI++2vhNl2Bv2TVMKrs8RdNAiHftLjUC1WZkbmXACQZFeI2Yymwy67kbxzec= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=p3lhT/jv; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="p3lhT/jv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1708328727; bh=Hp90mLjR44WCv/VB4t8dflfSiAXrxxn0/qF/zsP/e4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=p3lhT/jv0A2zR2B4Gk0V5EUW4VuJjvrGYiys8axjHULd66/cqJbcUUU5t1G+Nudks FvDglNYw5opuvy4DAVNN9iwXo03algsvAR2RyuSEhqu3QRb9LXVfyRjNoGZN7I59rn hYMiWrbAVVn9O87LYwdbydudLM47LL9DlvN18AsuwSYSD4eLCL73CRqRjtJxmQ//RH w7oqZgulku9ES3p1BISucO6CYEfXFieM8Ejzz6EKjJQBQUaogzjS471mTsbusI+wiX ZupmKv+HOuVs+LusoZzL3zQPViJvRH5wUkHiSgD/vViIqNR4ydK8EE/CXDtW3uonPn TqtbOcUBpwaHg== 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 21B1A378202B; Mon, 19 Feb 2024 07:45:22 +0000 (UTC) From: Eugen Hristev 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 Cc: linux-kernel@vger.kernel.org, kernel@collabora.com, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, krisman@suse.de, Gabriel Krisman Bertazi Subject: [PATCH v11 4/8] ext4: Reuse generic_ci_match for ci comparisons Date: Mon, 19 Feb 2024 09:44:53 +0200 Message-Id: <20240219074457.24578-5-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240219074457.24578-1-eugen.hristev@collabora.com> References: <20240219074457.24578-1-eugen.hristev@collabora.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 e554c5a62ba9..6e7af8dc4dde 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 Mon Feb 19 07:44:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13562277 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5F3E124A07; Mon, 19 Feb 2024 07:45:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328734; cv=none; b=QkbiGmrmWj9Ex9HJ+1YSbf1+wmMgTyttwJrLK9BstYywWk+JDemrz5WoLeWduphwvlB0WpVtcovSgSp3EjCh8jfww9NjgVw8osYI/Fk1gzrxdS6sXh6FLOS8361CJWp3Lz/tANG/ncMwOAodTmMYeRm2h4C2yTQeI23g/I/QM0w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328734; c=relaxed/simple; bh=dzKZXblpWESFyKaff5lcUS9bN5Ok7BHsB49SOtV2pf4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=JEBhbdFk/8sbuMCIuCSucrblJaxhUw7HZdxPkixYztUexDq6iNvvyWHLUyVkPu+7sKygPoCoqODBWNiGB/qXNTa00jyTKjl3VaZsXNVY6+6ofX6wsR0oX+e3hYd7mvL3B3FsJEMsghynD4+AaF3+TTetHjFl0FdqTvyvAlgpQtk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=i+318xeZ; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="i+318xeZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1708328731; bh=dzKZXblpWESFyKaff5lcUS9bN5Ok7BHsB49SOtV2pf4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=i+318xeZVCAfHQo/qkZ1THsv4pUzuTYZgDX0kf9h+pl/WhwL0Y6iTjJWH2Aztk3BC jcAu8Fl8znXmnyW9IC4ErxRIO/sx323cSgsvzyxSCvG5W1aVG8vAV2apMKDQsZRatk hMTEaH9nLHO7pCT2PSNtsm2xaURZzMp8g1AfTZHhT8DWm7oGPdlFKm87xNbkz4NOzR IzP40/yth7SH10vlZ4AwlNIcus0yV7eHnIJzpFZjU6Zkln5FL4JPFrH0REj6CkbPR9 VWPUypJn4zELyfF79IYryINl+BVHh5G7dr5pBGMC0xIgrz2u9/FZlhYyzjPc0BgCff 8W6GNhBNDPpIw== 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 B191A3782087; Mon, 19 Feb 2024 07:45:27 +0000 (UTC) From: Eugen Hristev 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 Cc: linux-kernel@vger.kernel.org, kernel@collabora.com, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, krisman@suse.de, Gabriel Krisman Bertazi , Eric Biggers Subject: [PATCH v11 5/8] f2fs: Reuse generic_ci_match for ci comparisons Date: Mon, 19 Feb 2024 09:44:54 +0200 Message-Id: <20240219074457.24578-6-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240219074457.24578-1-eugen.hristev@collabora.com> References: <20240219074457.24578-1-eugen.hristev@collabora.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Gabriel Krisman Bertazi Now that ci_match is part of libfs, make f2fs reuse it instead of having a different implementation. Reviewed-by: Chao Yu Reviewed-by: Eric Biggers 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 f5b65cf36393..7953322b9b9e 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 Mon Feb 19 07:44:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13562278 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D9B242555D; Mon, 19 Feb 2024 07:45:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328739; cv=none; b=TaPJy0e5CB58cAi4mRIFm6dpk89eR8O7uLKju2krtQ+dL/pI04jKL5T2BMJ3RMOXqfqIziod6xNBZTBn+9gXYehex9nTfC0MwbgzbHk7en2arJpiz8inyg8O1owMMcr46ok9S1r2tjuGcqmoga46+s1Maf1P6+1jfNpB9dloiiA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328739; c=relaxed/simple; bh=cVITJNZ35p97HDzRx3PUv0ugSW5S2fLqOWH88XqFex0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=MXz83uAjZMAXf0XCCMJSFxq1r7FVrhKIl6EEaGY5s5wWmsQ7Yu3CA7ST9ZevsTnmLG529/KL6x5sNsLXNhrE4xZfrVyD11/oq7VSQOBifUKY4h2vvUxfo0KlrhP8kCZQ3+TlnX9MVzsYoQm5TjB7dCahLe1i+brFWGSZYVsMDZI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=A3Spoc6m; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="A3Spoc6m" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1708328736; bh=cVITJNZ35p97HDzRx3PUv0ugSW5S2fLqOWH88XqFex0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A3Spoc6m3rIO/ZaFjo4xSa2Yz05An+usrXy+vgwSd2FERceXHyl6/CPF9AQ4stOn0 2h3yE9qfgQoF6MBIRH7o7MbI9g1ZTiGAImVt4ZBhEJRfXS6JR8TFuOTss+KWCZwa7B j1zpSA3eQdjQ4oYEnq3YGjxoB4JKk4fX3gE0MUgWt/2ZM9iYaL2FtSi/ZRBJpYEhin x7W2jI1bTE6Xi6PGKFjG6EifXf4v/2KTPG7qfdozJsKvlO20B+2ZW0YjskcCsN4Fxl 0WgWGBN59nx1ThA65xoJa7L3N1YdpC4XXmp+Bftt2Db1IHy5Q1cGKdIk/UsaCkHtK4 VPTgsjJIOOEQA== 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 51F4D37820BC; Mon, 19 Feb 2024 07:45:32 +0000 (UTC) From: Eugen Hristev 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 Cc: linux-kernel@vger.kernel.org, kernel@collabora.com, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, krisman@suse.de, Gabriel Krisman Bertazi , Eric Biggers Subject: [PATCH v11 6/8] ext4: Log error when lookup of encoded dentry fails Date: Mon, 19 Feb 2024 09:44:55 +0200 Message-Id: <20240219074457.24578-7-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240219074457.24578-1-eugen.hristev@collabora.com> References: <20240219074457.24578-1-eugen.hristev@collabora.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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. Reviewed-by: Eric Biggers 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 6e7af8dc4dde..7d357c417475 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 Mon Feb 19 07:44:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13562279 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0191421112; Mon, 19 Feb 2024 07:45:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328743; cv=none; b=lEuscKJeUPAeIrG2043Scr+AdZa3C3Idr/EcJuz0KVHWyAqT5ohz21wWRBI+CFV+NiHMCLqCS4fMU0iEiYox2CQfxNvclRq8I88YlSIS97b2RP2q8n19VbrKE9aTPwZf/Lvke4P3CeRxmDxy/vgmr/5wEThx3EKGqSHxCMd05tY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328743; c=relaxed/simple; bh=hw/qeTCsLdZ3kYNOmC9Du+A6MQKSFpNKhdzd2/uvICE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Cs5MX2x85683ZsideGnyNTdXhmVgMhd/EAqW9PSCmrdXbEGhIqag42mjUxGbXmtzYQEEbDemf7CUfISJefffKl4ZrjxGFLVOllo67uK22f5ooTDdgr8E1Ke82Xr0fz6y1p33zRmdKpgDQiiRF80UItd6OGtyWpUYbYpcXHO8UqY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=KcL9UnAY; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="KcL9UnAY" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1708328740; bh=hw/qeTCsLdZ3kYNOmC9Du+A6MQKSFpNKhdzd2/uvICE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KcL9UnAYGbBTKNzvT6BxUG6QLvicpPcx5SATp03gVJeHp/vyGOvEltNhFRh1P0TXO Ki2FP3K4usF/Rr+KW2BhfOm/VXp/Mw5DR+RMG80jAPyV8k3LFyBXfPEu0lC52BWFaG nhCVPufQUNEi7YWM0OFZSeoH34tE+XjgojUqDCLlzXtSswdjXCCbpB6Pn5Xzn/G0gq ga8PY/T1Hf51ghJDFIGs6uNvpaDpGQ2RzFKzrlVCPWU0glz+n5C1KMQmb40Q1Nftxq MJ4VD5NbzNBOgGt/H9l891KKVWvV4zn1C7Vg9j1Ygn1SiPEpDywMjJKFietdj+fX3B w511E8ipNiLtw== 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 B9E0337820BD; Mon, 19 Feb 2024 07:45:36 +0000 (UTC) From: Eugen Hristev 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 Cc: linux-kernel@vger.kernel.org, kernel@collabora.com, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, krisman@suse.de, Gabriel Krisman Bertazi , Eric Biggers Subject: [PATCH v11 7/8] ext4: Move CONFIG_UNICODE defguards into the code flow Date: Mon, 19 Feb 2024 09:44:56 +0200 Message-Id: <20240219074457.24578-8-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240219074457.24578-1-eugen.hristev@collabora.com> References: <20240219074457.24578-1-eugen.hristev@collabora.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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. Reviewed-by: Eric Biggers Signed-off-by: Gabriel Krisman Bertazi [eugen.hristev@collabora.com: port to 6.8-rc3] Signed-off-by: Eugen Hristev --- fs/ext4/crypto.c | 19 +++---------------- fs/ext4/ext4.h | 33 +++++++++++++++++++++------------ fs/ext4/namei.c | 14 +++++--------- fs/ext4/super.c | 4 +--- 4 files changed, 30 insertions(+), 40 deletions(-) diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c index 7ae0b61258a7..1d2f8b79529c 100644 --- a/fs/ext4/crypto.c +++ b/fs/ext4/crypto.c @@ -31,12 +31,7 @@ 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; + return ext4_fname_setup_ci_filename(dir, iname, fname); } int ext4_fname_prepare_lookup(struct inode *dir, struct dentry *dentry, @@ -51,12 +46,7 @@ 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; + return ext4_fname_setup_ci_filename(dir, &dentry->d_name, fname); } void ext4_fname_free_filename(struct ext4_filename *fname) @@ -70,10 +60,7 @@ 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 932bae88b4a7..18362054b59e 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2742,8 +2742,25 @@ 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 */ @@ -2766,16 +2783,11 @@ 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, @@ -2787,10 +2799,7 @@ 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 7d357c417475..822bd16f76fa 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1835,8 +1835,7 @@ 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 @@ -1844,7 +1843,7 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi */ return NULL; } -#endif + return d_splice_alias(inode, dentry); } @@ -3174,16 +3173,14 @@ 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); @@ -3285,16 +3282,15 @@ 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 0f931d0c227d..933a9218c20c 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 Mon Feb 19 07:44:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 13562280 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A7931286AC; Mon, 19 Feb 2024 07:45:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328748; cv=none; b=iTW1qC8YUM3Ss+rVRXI27bTqtT+rnLyaf02XMqrdujsuIylslTo/Vhvr5gW4yDog9x6823RNI0blYxWX5sM8PKC8priWJvngaeJ6yq2L94Do5wul7R3/jw1D1W263oYeO4MQa3k4qQdjkwIRH6y9UVCtLc5WVSZlIcA1+gzfusQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708328748; c=relaxed/simple; bh=PJX9nxRLEeoQwdUnmOqN3H2dctwppjpelMENczAYtJo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=PcSZJcmXAJBSNsPBFgLiDE6l3wUwAezttQn53cWvOHEI8BWIqCKI4JBHQ1TNwzYXHNc5ER3jUH8FnNGnGUgKsnp3k6CzW6I2FyTBWEg4zw1VfcU5uzZwVSOJ/F2svuQYLFY+9Pmyx5zBV3Butj9oXBI4XCQpHIzxbGzxJFMhHpg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=BS2A+tGl; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="BS2A+tGl" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1708328745; bh=PJX9nxRLEeoQwdUnmOqN3H2dctwppjpelMENczAYtJo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BS2A+tGlyrlXhAMVAAqIP9FMTpGAabNIJMqExmdQc6ch0HMCeFPA7fPrAA7/MFYRZ is/znYhAW+23oSaFZ/76fl32JOqAhJuCpAarw6VJDGdNDzHbVW+m2ZOtFBtQf1r/7q ZDwFDQh5mNYydk8zOcFfGSt9rNA0kyu4IV5nJF2xAuvM7TKUw2eQLqWLxUcMXj/p3Y yTs8FSll/a7uFqrYvCgnjfE06iDRLIp3Rpo+WGEq6YTdJ30od8oZglKoU5ya1Qwsx/ Qn7zd6QEECx2FXgOxplbcu5G1HDLfSwYOcPB/2/cpUjZEECMKtFjR4fPj00ACaWmYR Tzg47AFqJtutA== 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 2859B37820BE; Mon, 19 Feb 2024 07:45:40 +0000 (UTC) From: Eugen Hristev 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 Cc: linux-kernel@vger.kernel.org, kernel@collabora.com, eugen.hristev@collabora.com, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, krisman@suse.de, Gabriel Krisman Bertazi , Eric Biggers Subject: [PATCH v11 8/8] f2fs: Move CONFIG_UNICODE defguards into the code flow Date: Mon, 19 Feb 2024 09:44:57 +0200 Message-Id: <20240219074457.24578-9-eugen.hristev@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240219074457.24578-1-eugen.hristev@collabora.com> References: <20240219074457.24578-1-eugen.hristev@collabora.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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. Reviewed-by: Eric Biggers Reviewed-by: Chao Yu 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 ba11298b7837..c317bfd1c344 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -577,8 +577,7 @@ 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 @@ -587,7 +586,7 @@ 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); @@ -640,16 +639,15 @@ 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 1b718bebfaa1..07c54981cb6b 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -312,7 +312,7 @@ 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; } @@ -1360,13 +1360,13 @@ 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