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 17B743BE64B; Thu, 23 Apr 2026 13:12:44 +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=1776949965; cv=none; b=QBt22csGPtPxdIHMlybHU0ehmnp98yUTsiYxnqBlovq2a9l3xJUQx59ppzGuVA8Lwr/qj4H1C7MFhaDY+k3B0WgOIGjaBxHXjjuI05zhxNmToO9e56NHvfWog73ROeHP/kFaPuIWSrLO0HnyTz4s9wbSuN15IDySMem4B19kyKw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776949965; c=relaxed/simple; bh=Q/Z3eU7E7G5VuhyXLGLHVQn/X3HZutM3gSylfnZVEPg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=KfsgS7G4OwN7fRA8HPnyHPfrLH40ko016tT/tB7V9I577X36aHbbhpZ+g7DlPn+bmV7YEY394naLFWzLRy/hM5ik7hmhjGs17XpVBcCK8eic1BNwKIIfOiU2YWyb8xKmFiXiK+Ib+HUNFJS7dd3aKaPrO9LQm4ty5P3dOEgs6rk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=b5gScez2; 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="b5gScez2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87020C2BCAF; Thu, 23 Apr 2026 13:12:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776949964; bh=Q/Z3eU7E7G5VuhyXLGLHVQn/X3HZutM3gSylfnZVEPg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=b5gScez2YED5kR4UfP7ePXzzEJBb5rUkzl2kaWZ8I3PLFUgBLAbDFoL6fUBrKhQsb vY7VDji9bHDReQ5D8SfrPb4vl99b0Oo3UsSGYWGGc6n9UsMvzFdSxZSJDss0CoTzxm oltz16gygeIH57IBkctp753tNu/+G9aCXfA4LYLnB+fzWUhEYju83IJ+sXU8smvzdP o+gArT4pCLP3Z68PxSt9h0Z8PImmccL9/D2lM0DQUcfIGgWnhyzpGjghvJmtKcZ2CS 2Li5JyuynrqBOkmQMrKRlm0LlfT8IpYZyQRNIRA2/V8vsfwlaqqrWEO3GQQBydWlvP pDCsYsSZbsNbw== From: Chuck Lever Date: Thu, 23 Apr 2026 09:12:12 -0400 Subject: [PATCH v10 09/17] xfs: Report case sensitivity in fileattr_get 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: <20260423-case-sensitivity-v10-9-c385d674a6cf@oracle.com> References: <20260423-case-sensitivity-v10-0-c385d674a6cf@oracle.com> In-Reply-To: <20260423-case-sensitivity-v10-0-c385d674a6cf@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=1165; i=chuck.lever@oracle.com; h=from:subject:message-id; bh=f8bPTEa6xHOGMJ4BkwBw/MA1JRSPvJxuTKAc3AxqaEI=; b=owEBbQKS/ZANAwAKATNqszNvZn+XAcsmYgBp6hq080HBIoQoVwdco58yDR8YVIdkIx/l7nWCL p17rvkKMhqJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCaeoatAAKCRAzarMzb2Z/ ly/ED/9AmddXjVCN3aojVl3dq7vYD4dHLpYLDtV64JoEYigKfl8rORJ11NTU+gqKE1e24B60uJk pdFiokvjs9qrW2JRbQFgIwW6hTV815teXb8jU9fS7kXCDGUBNNqBMi1AURxGS0+cKMvJOsG7wvl yputvf+P5kAEyAepPLwNZDeQ3ZsFw0aB/O7Wo43QmTRdbwp5K86ykLPGRxjf5QHuw2z9nn4q9XZ EvfnjgtzDe+CRaFbZFrJD1YflFdVfMzmJ8y8OhJ3VPs7+SCXwRGJqQ4t7WOPHwHRUxId1+yvGLf jlpNGlpLScKmAZy0wex1OROguQuASjnDTEND3+Rnxm7dmTYA08JqC8C9yRPit0M62pGj9Y9V162 sSMrVUnmNayFOLfJuFGyYOD1C8vpsqsOVB6H47ikng+DKH85GPzl26ob1o/KebclsssdTPgwdzq +yVZixdIvTd7o/xyqgFffTVmBgYCW6aG0Wx7eB5CQMmPAcy+0BrbsuRaTuWhzqAVS8OgqfF7X8N ZVh4zYhE3s/YMsVzb78E+fwRyV7Gs+2vW5BtzPVat9FZxYtahS7k+5fIlWewHB0u/Ps+LzSnUJT Hch9406DJ+hMcAznh9G3hlsmcRQPA7MlqUf7my4whGQPZvztR/OETamaDE6BzniYdfmQ2AAjG9L zRv4taVhhDcNCMQ== X-Developer-Key: i=chuck.lever@oracle.com; a=openpgp; fpr=28B2E5B01286DF243CF23EFE336AB3336F667F97 From: Chuck Lever Upper layers such as NFSD need to query whether a filesystem is case-sensitive. Add FS_XFLAG_CASEFOLD to xfs_ip2xflags() when the filesystem is formatted with the ASCIICI feature flag. This serves both FS_IOC_FSGETXATTR (via xfs_fill_fsxattr() in xfs_fileattr_get()) and XFS_IOC_BULKSTAT (which populates bs_xflags directly from xfs_ip2xflags()), so bulkstat consumers and per-inode queries see a consistent view of the filesystem's case-folding behavior. XFS always preserves case. XFS is case-sensitive by default, but supports ASCII case-insensitive lookups when formatted with the ASCIICI feature flag. Signed-off-by: Chuck Lever --- fs/xfs/libxfs/xfs_inode_util.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/xfs/libxfs/xfs_inode_util.c b/fs/xfs/libxfs/xfs_inode_util.c index 551fa51befb6..82be54b6f8d3 100644 --- a/fs/xfs/libxfs/xfs_inode_util.c +++ b/fs/xfs/libxfs/xfs_inode_util.c @@ -130,6 +130,8 @@ xfs_ip2xflags( if (xfs_inode_has_attr_fork(ip)) flags |= FS_XFLAG_HASATTR; + if (xfs_has_asciici(ip->i_mount)) + flags |= FS_XFLAG_CASEFOLD; return flags; } -- 2.53.0