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 99EC12DECDF; Wed, 14 Jan 2026 14:29:24 +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=1768400964; cv=none; b=F05P1NWec8f0P+kZkl3kIQu5qTEehwBUCKsIYqu2zS7rll0To99+wAlkN88HSePGBt2inmDE4KBMHTBKMxW9F6vOT0b4XRl7M7z7E7oAzJqqQLscPS2+CznRk722RzwLWCTMbkyWq2jCkGpxtEIKUMUaGflZCB5gKab7yQwPjnQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768400964; c=relaxed/simple; bh=a4XIY9jP7DHeDPNkP9IdkH0ovCnkdRclS4Bjo7NcH8g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=E0k76BIRh6qzdUGM91oSjDGGMkf+RgNtoHtJCgRqSEjMNF1uDiX23Wboy47Wh5bzG4iToXr2ajTb/Ara64In7einZvHWlK4pLy3FexmNgWoOadiiuo7BDiF+p/7Q4zNvJaVFuvE5uH5cYfOOQ+QunAkTFA+gxDL0i0qPZaGcklQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qTHCGKF9; 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="qTHCGKF9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EE446C16AAE; Wed, 14 Jan 2026 14:29:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768400964; bh=a4XIY9jP7DHeDPNkP9IdkH0ovCnkdRclS4Bjo7NcH8g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qTHCGKF9yeARZQmE1ZqRCeP5MmjvZ5sRY0tGJnIVmEWqFyWXgoJBAWcWzyop5WBB2 ZKqzBRi/x5pLGgOc09aSTy3aWIg1nYfuAxNRtPKoOnbLz/5f+ZGKaGOy+8oC2yJHJH TReKEPRfj7SghmfbTemEzCKLsdmCAH92kp9qWH2XamHhH0VLyICT1m7KPHfY7KrCTf RMCvsBxfHyU6fvKOF5zsonVKTu7iSGc5SYuWkEvQd4aDUyGakoBp61NeaLcYow69PX UylU/jxqN0XKtHjGzYRWWzSF0NlI0/XxIOazsl/2cXExIf6SXkD6jvktRYeG7gBHF+ hGmOt8auD3A3Q== From: Chuck Lever To: vira, Christian Brauner , Jan Kara Cc: , linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-cifs@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 , "Darrick J. Wong" Subject: [PATCH v4 08/16] xfs: Report case sensitivity in fileattr_get Date: Wed, 14 Jan 2026 09:28:51 -0500 Message-ID: <20260114142900.3945054-9-cel@kernel.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260114142900.3945054-1-cel@kernel.org> References: <20260114142900.3945054-1-cel@kernel.org> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Chuck Lever Upper layers such as NFSD need to query whether a filesystem is case-sensitive. Populate the case_insensitive and case_preserving fields in xfs_fileattr_get(). XFS always preserves case. XFS is case-sensitive by default, but supports ASCII case-insensitive lookups when formatted with the ASCIICI feature flag. Reviewed-by: "Darrick J. Wong" Signed-off-by: Chuck Lever --- fs/xfs/xfs_ioctl.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 59eaad774371..e8061fe109e9 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -516,6 +516,12 @@ xfs_fileattr_get( xfs_fill_fsxattr(ip, XFS_DATA_FORK, fa); xfs_iunlock(ip, XFS_ILOCK_SHARED); + /* + * XFS preserves case (the default). It is case-sensitive by + * default, but can be formatted with ASCII case-insensitive + * mode enabled. + */ + fa->case_insensitive = xfs_has_asciici(ip->i_mount); return 0; } -- 2.52.0