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 CF2EB41C2F4; Wed, 29 Apr 2026 18:07:43 +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=1777486064; cv=none; b=iuzi7gpdi9BRwTBZEjnkeq088+LvmIlLdS/YzAlcZzm2Nh9RaiMoeN430084JTjNvi1ObWI9jBPawhalPDvgCc9khwiY+QjQhV6P+tN8t14Azv9DeX8iwWOl0ku9BcaEpRXq0IO/RORmWRNdzuQC+83o04T6X8kaUggpYSlLUP4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777486064; c=relaxed/simple; bh=+3MOBq8tIY5WA12oHUqvFyZTiNAU0Ok39mLnTTLF1eI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=GLZvWBYLzrjjxxb9hWCGMd+hHrFTLd2oDzGiUnovDumM4O6k8OAKI0/V87U/BmUeCzEBrqxzjX2qAcSTWinxHNumr/qS4/FgqwWH8Tcj/a0dXOV7OpHp/RSLi+EQiyNnC4B99IGoHFfC0wzPGNaUMe1I4oVYFfRMYdhkmYcasBU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=sn5WNYcw; 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="sn5WNYcw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 13A24C19425; Wed, 29 Apr 2026 18:07:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777486063; bh=+3MOBq8tIY5WA12oHUqvFyZTiNAU0Ok39mLnTTLF1eI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=sn5WNYcwOS5XkPUDifxALSSvjDsQAw+ctspndg7a+7yGJf66U5P/pwLtU37qZgdMl LIKkqy62iDfd5R6bLLajEXvtUAepv4Qzue7IPilxoZgCg1lGP05qvpG2DS33iWExBD 6TjR9HPXAEFvLzL/FKMQR/q2Kdpb2dXYT+v6J4EjhVSTGFAq76Ce3yGRQCH6WqYlR3 Yand7R2gFHFpRIM9CeDi1VGnHS2Dltv3UyfJvZh//bW6cZa4+vzZzkgXqNiV8aDjXu /1MUlShgFOIPwiMYGDqwi+ECUr/tDxKCY5mfIRqvbxkoeHazrCHDp+G7lB9yrEPiE8 +/l5Gi/iOpYDw== From: Chuck Lever Date: Wed, 29 Apr 2026 14:07:17 -0400 Subject: [PATCH v12 06/15] hfs: Implement fileattr_get for case sensitivity Precedence: bulk X-Mailing-List: linux-ext4@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: <20260429-case-sensitivity-v12-6-8057123bebe0@oracle.com> References: <20260429-case-sensitivity-v12-0-8057123bebe0@oracle.com> In-Reply-To: <20260429-case-sensitivity-v12-0-8057123bebe0@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+XAcsmYgBp8kjcMbu8J3ZZsnJNx5OSfXNR0ib9yCFwb/FWx f6j5ru9r0OJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCafJI3AAKCRAzarMzb2Z/ l0ElD/9CG/JBuZOsRDy5u0rsIVVp85xaf9Pwdb9wPm1EMWgEdP/MtQqJT+aF418t1ODxydLtMbc URaCw4swffGw8Y9Ye6yA58Rkqc7e3fnaboPeS8N4szbZKUjx31UN4UTJ1w2EtNmSsjJtewLfetr OAxzPaqmIwv4QgVmC0Ds66xv6/aICpiNRrkjn6OWG+qngSobPfJ8OGwPVTY3kJ2Wi6XSVaGgxzg FS09eFYuvC+OPL3xmuMIy+fBg5PXd1X64C5Xg1QJQQGV+KOEREy9WK6sywnWl4HPWmv10GgbART 4w11eU0QBjohFy2eW8cW3EXzdRKo+odZPIruAWWjXhVHLpEIis9vXChLWL4QiLqIPP9QySWzkPX Z0gxKe2VuAHjwMp4+FDkWU16A6H5+OOz2bBOrPABYoJpopDyMTvU8YfeJ0XroDBvTWv/Gvuvch2 skDD1L0DvmgD8s89IBfqWRHsjdphECH/yAOdJtm44UNqIyaWA9VKbZb3N2KUHkIyMWEf7noSinH Gr2WAV6ebteMNaqeWqfeUzVR6N83mRgI32XBHGpui0ZP6iqgrx9S1tepz2qjQmTu65Y+s4pgKiY P05zJTQuM1wDP6Jnzc03kVW9sL9G+15YpY9OkzbPgzrfORIqiEfZnfDijD53dLzj3EGx7LHm/ju NctRkRdmw4g3Sow== 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