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 D4F4834C9AC; Wed, 22 Apr 2026 23:30:31 +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=1776900631; cv=none; b=aRKDIR7MK8goySVLJ4odrAyLUfPfOvewXNnixBjUEke+LIyIsmiYZWMeugW0Y3fksVBQiop8kc8Qo1S8BncsbaLFUWllbvjnZcNDdpfwrPs9PqVG11VxapING5jAEGgEHAIzc7/CuTSIeSn5JlxmTwK/NiUCMXS1xfTwVSpMqSM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776900631; c=relaxed/simple; bh=MPKaRNRTQAJmLU63db2cpCz96vGgkp/OyFEdF/JZV/w=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=O6jtvbrnQyKyfmpukWt/xXv5TOcTuh1LiJiKu/qWtFf66pWOkNxFB5aIZu2DO1nKtcwNxENS5ei95i65i87C3QUfw3ovWBqiUb8A9dvAg8NmMKMJurZoCWidp6hAwvzjZ+Qp/hI9lUIOZb9lT7xDqszwfaqZy8tkgOvE5GamyrQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=e1fXpcMg; 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="e1fXpcMg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4CB28C2BCAF; Wed, 22 Apr 2026 23:30:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776900631; bh=MPKaRNRTQAJmLU63db2cpCz96vGgkp/OyFEdF/JZV/w=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=e1fXpcMgY2SMHELymHXAHGmlviYXMcVNNlzqAal1VpBV7erYU5endNHTdfpX5MooZ f+JuWCRMqWL8e80hPpoWXAMxwkLn7IB16/cZi65NHBXkaEf5TnjrdoRFxM8gZBlUgw Jk5gSsECQJX431rYYHXu3slHqw18xxQLdCv2bHvyydinfN/H8Och5gEK/HOFZ1URNE sikpykcJTWAt1mjnIFmlUtkZL/SlIfOInaRd0XfuqRpPEkd5nL/zwnCt0YOWtB4QCE qVqm6JBvyG2Jyn5j2Fqlxel64Q8npSc62QcurcUgvsUsFjsTWnYi5wPy/wVugDgj3N c0Cs7DCx8Ifaw== From: Chuck Lever Date: Wed, 22 Apr 2026 19:30:00 -0400 Subject: [PATCH v9 06/17] hfs: Implement fileattr_get for case sensitivity Precedence: bulk X-Mailing-List: linux-fsdevel@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: <20260422-case-sensitivity-v9-6-be023cc070e2@oracle.com> References: <20260422-case-sensitivity-v9-0-be023cc070e2@oracle.com> In-Reply-To: <20260422-case-sensitivity-v9-0-be023cc070e2@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 X-Mailer: b4 0.16-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=2470; i=chuck.lever@oracle.com; h=from:subject:message-id; bh=sBcf0hJ0mC4j6QqtM39zu2705aCjapPtH74zbWqfwDA=; b=owEBbQKS/ZANAwAKATNqszNvZn+XAcsmYgBp6VoFF0e4b6ogjDyg7qWQkKa2tzF23QmRrkvgl 1JhhI/4PUiJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCaelaBQAKCRAzarMzb2Z/ l6l6D/47inW6njVnLrm9cGl7rHBeXIeOzLam4R8IitrDpY/z9a0zHYqOMJJtNF4VPorGh56iQmq /Y33ADa4D2dGJvToyK1aWZiTwsw+VjlbXb8UFyE40/8uCycVaLHZzxWWKH9s4MECvRJ8nkhSh/N rYsQCA5w9+t/IOUESMngCZN63l6bwvacQhWLL155XEsRY0XECv4Y6CQtbJH48v9WH885Ai9sr7v XlvyYXX7BowqvkHrRxctP8guMj0SVXnKJXnlY2U53sWE3BYeIejoxMnc6IVfYQnv/r81SBpuRj0 jPXLpDfwbrklFXl3YBT2jrfPnO+dnjRWY1GIvEmYRMOAWFfCapZl1ugQ+PSX2RZ27MwTfLjNcU8 brWqM7TwREyysQvVO1A11EoMHpUWqw8U2CzrylD5rQt8EeYl7WG6WAGFUxdqZYLRtgB9mGxDfTF /qnkuIbEku1s8PeZW0ZgguYkwD4iXOAdJZaOauoHa8GJ/cFg0ibvBufljiRD/96SVfAw5iR+0/6 Z19gbXyPIL9b5rK4/m+yxTHbgJ8v7ZLIs5KVqLYRgkj/LX+C7oXRKSeYnBzRe9B7K7Mip7V+QLq J1HUIJX2OJifJx3FpAitNTAGywhsnFNHHR9na6cAAoNKdYNJxTJlSASJz14vppwK7TS5KJZA28l 5dJ1Gsn27wSg1ow== 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 Signed-off-by: Chuck Lever --- fs/hfs/dir.c | 1 + fs/hfs/hfs_fs.h | 2 ++ fs/hfs/inode.c | 13 +++++++++++++ 3 files changed, 16 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..f9a10444353a 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 +700,17 @@ 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; + return 0; +} + static const struct file_operations hfs_file_operations = { .llseek = generic_file_llseek, .read_iter = generic_file_read_iter, @@ -715,4 +727,5 @@ 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