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 04D8433AD81; Sat, 2 May 2026 14:21:47 +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=1777731708; cv=none; b=UNMAHuhFyDeKFw8Wua3BdBvU5LpJiELYlxO0PJv8Q9H1ODpbmETMqDCbMCT13KEo7FwXMivu/saD0A73nZvr3bfA0EGhNYpzNljduxDoBjSM9bs3GNrueyfrmNiWxO3GHA5B8pkusi0Riu4ZEQd0vt06rR8ReOlHGH5//ea04Cw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777731708; c=relaxed/simple; bh=+3MOBq8tIY5WA12oHUqvFyZTiNAU0Ok39mLnTTLF1eI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=V9vzimvab1NPwN7dQOHtorgZq+xUk/tIyymRa2oiXtvkq0THnYDmJioGKqDS0sB/TfvEobyig/arjrZjk8oaScKTP1kIfz4bCTCQx594ghBqFXFSwhG8EfB0Dn3s4qsYyp1YSJLpaCrkxr1lfcWk5lvz3IQg/DJjQRHxFiIMhHY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=V+BAYZ1N; 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="V+BAYZ1N" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1B3C5C19425; Sat, 2 May 2026 14:21:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777731707; bh=+3MOBq8tIY5WA12oHUqvFyZTiNAU0Ok39mLnTTLF1eI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=V+BAYZ1NA3rmiLjK52LlHGI017V2rmw4FyiFpAEuPnWNAzLV/BklFDv+0ndD/6KMy C69l8rQXa0qc232YT+0IOv5GI56arFXXf2EEW7bMFRvC3Z4GBtj8YsQ0ovUM5PBLmd JRmgC2VOpr85pPqT4Vi7J5/s2Giagkk+yQjvsAN4UvxeHheoF+y7y0vxUNa90sIbSu 6nIkOqTLIfbQyISce5Kr3iDivS4uAVkQ3DeQMQ5e9h1TU1IwrDxJSqzHuRsP2TTzDC aaOYl7BVYC0NUDGM7fj/CK2TbGPQqtrxhZTzd71pHRzpqHmRafFZ1EFj1YDJKaM6As pfRbQCGoLVuxg== From: Chuck Lever Date: Sat, 02 May 2026 10:20:51 -0400 Subject: [PATCH v13 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: <20260502-case-sensitivity-v13-6-aa853140311f@oracle.com> References: <20260502-case-sensitivity-v13-0-aa853140311f@oracle.com> In-Reply-To: <20260502-case-sensitivity-v13-0-aa853140311f@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+XAcsmYgBp9ghQ1F2LuRfI+wJoJda72084qSBTHeEbEJZrV vWjO3v+igGJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCafYIUAAKCRAzarMzb2Z/ l2b0D/4lJDck+X5c7GEdQg3CzSN/Hrj8Rb/bYN3MswvFTuVU9mxcMgaXy9foEzRaRjYdVCnqrRp H09KFeqd+f1/zX3w5Hugvt0PJSmsL51Il8ss2eiqoYdeFz+8CefSE+ox7FJT/ZnMkYH7dgpzTsG iY749krRyYTob3TzvpXllZuactlV5E0jPnYP1a/JR+SbLh+IbDgb6OTsCxl+PXbD8iWiu5xIjLy 4oB6A0qYzTalIXpUrqb7bRAy8/Pi/mp++e9KR+sJrF7CDWKUjCAKR1j4Aj+IFVuYYb8W5RHRuLS 87OTZEyLSVs60PIzw9sAneZrfWN6Prl4fc2OFFeCdJW7HBBJzDGfEpjM3JwPPFsa5PWYkeWp6yR HE8jY8iUx9DnclTSzFIrG/ytxX6v7IdsKYzgC7fYmokAWx1cZIF9l8UZhPF5FgIx1HLONT4XELR QhYOvHrIVzp7Kgx+gLDIUvsNTuMtuDVZT54sNBxurgR9wWrWiMLHIHJ9BxnVQGUwdYjvPOTef93 GDykLA/GaMm7jVp0We5fWyRyEOs7CFl/11F71jqKx3JIx4jXlo6vw+JNGqmTXUr+58CeBpnE8MQ uqsb49sTWHqcS8oetmV+s8g8kQt6Z9XCfQzsBtRgzfkEqcsNdRNIlMuEGyxyiX3aGDOTGhISXcN vad1rdHefQvad7Q== 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