From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 1C3942459E1; Sat, 25 Apr 2026 01:53:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777082019; cv=none; b=QR3Bk9WonUBnhIRoEkDUpLvaoAm+E+V/rLiK+Fgy35RrEVQUC6k0ZV2hlND8LSuaa1Kp0HJWb6YXOsXrOVYGdQLQF+uQYA0TTrYOQeviHHlUM00YHy6t6AMXNfPHzEE0eUOFh3IblwpOZtGAEkp06eVNfdz5AozRapipuiuv/mY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777082019; c=relaxed/simple; bh=+3MOBq8tIY5WA12oHUqvFyZTiNAU0Ok39mLnTTLF1eI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=XciV3lD7RrW2L3cDTvottchlGyNOPGnT7HciR7YYFsYahdVmplgUKPSac/YhQ5Bq+TClbiv4zKODgVFtqWSXqEBUujtZqfSRRRLK123z4OxkYnWzt9BFJfV+XQ6aGiPaeDJ9PL3AuVsQoqRb42dDhlH+PQ5b1h6cD0ZzrRR9saE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Po14uAd4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Po14uAd4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6EBEAC2BCB5; Sat, 25 Apr 2026 01:53:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777082018; bh=+3MOBq8tIY5WA12oHUqvFyZTiNAU0Ok39mLnTTLF1eI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Po14uAd4s/wiiENSvxbh+ps2GZOcn/8LhI0uo4tb1F4Pe3jqlx+2rGjY1hGUSWOmJ DPnsHHME/4WGwBd2AWpQmGB063a9s25WRVbMLfW+6/XmJRQOGBiSBMUEl1L4lSzV0j kTHw5XTJYEeqJcundSzxcUDO6euEsfj35Gz/rlRueNylTA36W/XJC6YiU/RgQaty+n UEzjGbP93WLA6hM3AzX3YUfFqFB2hWEaCYznHp2KnDHX62j1M/sJpydqBOX0sbrc0m FSgFTthTkId9NpWICQmBNL5QoSGRONAJXoegF8JzRdc2aYNDiue8IKl67PiKXWdfNA Kouv+YBvFje9g== From: Chuck Lever Date: Fri, 24 Apr 2026 21:53:08 -0400 Subject: [PATCH v11 06/15] hfs: Implement fileattr_get for case sensitivity Precedence: bulk X-Mailing-List: linux-api@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260424-case-sensitivity-v11-6-de5619beddaf@oracle.com> References: <20260424-case-sensitivity-v11-0-de5619beddaf@oracle.com> In-Reply-To: <20260424-case-sensitivity-v11-0-de5619beddaf@oracle.com> To: Al Viro , Christian Brauner , Jan Kara Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-api@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, hirofumi@mail.parknet.co.jp, linkinjeon@kernel.org, sj1557.seo@samsung.com, yuezhang.mo@sony.com, almaz.alexandrovich@paragon-software.com, slava@dubeyko.com, glaubitz@physik.fu-berlin.de, frank.li@vivo.com, tytso@mit.edu, adilger.kernel@dilger.ca, cem@kernel.org, sfrench@samba.org, pc@manguebit.org, ronniesahlberg@gmail.com, sprasad@microsoft.com, trondmy@kernel.org, anna@kernel.org, jaegeuk@kernel.org, chao@kernel.org, hansg@kernel.org, senozhatsky@chromium.org, Chuck Lever , Roland Mainz X-Mailer: b4 0.16-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=2557; i=chuck.lever@oracle.com; h=from:subject:message-id; bh=2Xqe+DnVGNfulHUCzpURt2jTiqbh233GQupN+nsg0Mc=; b=owEBbQKS/ZANAwAKATNqszNvZn+XAcsmYgBp7B6QMaG3Vj/9N1di+0c7HAL3Lo5gwGKNaaWO+ rt91mDJ1IqJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCaewekAAKCRAzarMzb2Z/ l9dBEAC5tzt5UR880pQ3sCv1p0X3cyCLrZZ2G/QXN02XqQKpa93iydTN/5iY8vQ9apd8r6rm+mg D08EAC9Kbbvo5Ma6t90VVZVrl+oBwdHieHQ85zvzTOzxyILwi7RJuAbaQxrcUYoIRZ20jBznin0 fSTd6M60x84fBQSFqRl9mgPcSaWAkQZDI+u59MvgO2x0Hk1hqDF4OsvOEiIfmBzdcmIlud9+onQ +pKfJQJ5QG6vVY4Zg+xi55R6enUwejsgok7WFDGebeq8hvuiaXiNmWL6eohIeR13AB4pOPCSw2O WU08njma4sjoREgYj1pxih5wDf9AxJ8TWsfimlWVi597g2CIzqOUY2gv9ZJRSnflT+8y+hYh0NS rjAGKJ1mQlQ48hgi0bHjMi7eNcbFd5oiasHr89sWMpdAXO8m9Bm8PnktWTG90mCD4WovUdnvwS/ B+WGQO5lufWVI30eEkxvW7TVm/kOeB9LsFEz8XFBQQ1Z2C9rUpizVNv8AzdyT6q/uObpWEar6mJ Pw58Fe5T8Xee7hQjMXOZEujz8LkRoF0PSGmBt04YtWHp8TLtegR5+0apPi7/keXaR3VsGN1IpjE /FQXKk6yrZCFepDs6sc4ZaUs73iPXtCgtUqIwDoXy8TMFXSZdkiTb0Vk3RTKYXQ9FXVYh/3py3I lq7UvruzGb8GVIw== X-Developer-Key: i=chuck.lever@oracle.com; a=openpgp; fpr=28B2E5B01286DF243CF23EFE336AB3336F667F97 From: Chuck Lever Report HFS case sensitivity behavior via the FS_XFLAG_CASEFOLD flag. HFS is always case-insensitive (using Mac OS Roman case folding) and always preserves case at rest. Reviewed-by: Viacheslav Dubeyko Reviewed-by: Roland Mainz Signed-off-by: Chuck Lever --- fs/hfs/dir.c | 1 + fs/hfs/hfs_fs.h | 2 ++ fs/hfs/inode.c | 14 ++++++++++++++ 3 files changed, 17 insertions(+) diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c index f5e7efe924e7..c4c6e1623f55 100644 --- a/fs/hfs/dir.c +++ b/fs/hfs/dir.c @@ -328,4 +328,5 @@ const struct inode_operations hfs_dir_inode_operations = { .rmdir = hfs_remove, .rename = hfs_rename, .setattr = hfs_inode_setattr, + .fileattr_get = hfs_fileattr_get, }; diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h index ac0e83f77a0f..1b23448c9a48 100644 --- a/fs/hfs/hfs_fs.h +++ b/fs/hfs/hfs_fs.h @@ -177,6 +177,8 @@ extern int hfs_get_block(struct inode *inode, sector_t block, extern const struct address_space_operations hfs_aops; extern const struct address_space_operations hfs_btree_aops; +struct file_kattr; +int hfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa); int hfs_write_begin(const struct kiocb *iocb, struct address_space *mapping, loff_t pos, unsigned int len, struct folio **foliop, void **fsdata); diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c index 89b33a9d46d5..f41cc261684d 100644 --- a/fs/hfs/inode.c +++ b/fs/hfs/inode.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "hfs_fs.h" #include "btree.h" @@ -699,6 +700,18 @@ static int hfs_file_fsync(struct file *filp, loff_t start, loff_t end, return ret; } +int hfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa) +{ + /* + * HFS compares filenames using Mac OS Roman case folding, so + * lookup is always case-insensitive. Names are stored on disk + * with case intact; CASENONPRESERVING stays clear. + */ + fa->fsx_xflags |= FS_XFLAG_CASEFOLD; + fa->flags |= FS_CASEFOLD_FL; + return 0; +} + static const struct file_operations hfs_file_operations = { .llseek = generic_file_llseek, .read_iter = generic_file_read_iter, @@ -715,4 +728,5 @@ static const struct inode_operations hfs_file_inode_operations = { .lookup = hfs_file_lookup, .setattr = hfs_inode_setattr, .listxattr = generic_listxattr, + .fileattr_get = hfs_fileattr_get, }; -- 2.53.0