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 527842D978C; Mon, 9 Mar 2026 19:24:57 +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=1773084297; cv=none; b=JPlG6uWTp1tZakILqiBPRnpqrZg9+mfhjPz+iG+Ztsz8Gd0yAdxArUm1Y1VwsEnkmN6w5Trf5g+sKEHlKmU3zvQo0kDxKj5EfLoEoSJL3+TlCdBpcTLNQfLsTpuFwIgG7Rz+v++S5zEQ9fqSkoFpEwpX5LsGLUJDcjPCxBIbotM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773084297; c=relaxed/simple; bh=s36P9QLO9GzyT4MQJjm1imoOYbBZv4qo+rih8qa1TLU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lNXn/VpEsr6ZSgBCxCs/ev3S1F1/7LY7XHlIhZLH+OdFpYB/wqat4sX5tbitDn2+mmNws4+5ah//k3hmWYFj85PNVdj9Ud+CoO0XKzZGBgrrS7fi0W+8QLCYK9UnQZTvr8Jvg6LldtTkkYwJS9XmjQQ8TAlMcKNIyiR2WJYohRA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hmlOH6t/; 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="hmlOH6t/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0188CC4CEF7; Mon, 9 Mar 2026 19:24:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773084297; bh=s36P9QLO9GzyT4MQJjm1imoOYbBZv4qo+rih8qa1TLU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hmlOH6t/AYMMSVzn7e2cKoH+NFkC/02o+EZCSm0XQ+Vj4VMLTVkjwkssNON5py85C By+P6uYfsYaodWWbsNRBHl+aQEEce/Kbfs4miq3/yl3YbcxaObroqv+dt2ZLeyUxq9 LEkq/Moi6rslxLIXVImO/H0xVuSQhhMncBgRf1e9CBzeFB3BgK+DI1ELxXj4MEzcfN T4zEdXyG2Fer9x1BXxlV5y6gArwyxu7Ylwom3sMT16iOD4QQEaoHjKtLvGbV7ggycv 3/SKTnrPjCsJHMuf4/utaYFxyw7197MTO88/iLs4MfoxlOOv2LXTip4fyBVTy3QUKx +eui7uEXxzVCw== From: Andrey Albershteyn To: linux-xfs@vger.kernel.org, fsverity@lists.linux.dev, linux-fsdevel@vger.kernel.org, ebiggers@kernel.org Cc: Andrey Albershteyn , hch@lst.de, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-btrfs@vger.kernel.org, djwong@kernel.org Subject: [PATCH v4 14/25] xfs: don't allow to enable DAX on fs-verity sealed inode Date: Mon, 9 Mar 2026 20:23:29 +0100 Message-ID: <20260309192355.176980-15-aalbersh@kernel.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20260309192355.176980-1-aalbersh@kernel.org> References: <20260309192355.176980-1-aalbersh@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 fs-verity doesn't support DAX. Forbid filesystem to enable DAX on inodes which already have fs-verity enabled. The opposite is checked when fs-verity is enabled, it won't be enabled if DAX is. Signed-off-by: Andrey Albershteyn [djwong: fix typo in subject] Signed-off-by: Darrick J. Wong --- fs/xfs/xfs_iops.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index ca369eb96561..17efc83a86ed 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -1387,6 +1387,8 @@ xfs_inode_should_enable_dax( return false; if (!xfs_inode_supports_dax(ip)) return false; + if (ip->i_diflags2 & XFS_DIFLAG2_VERITY) + return false; if (xfs_has_dax_always(ip->i_mount)) return true; if (ip->i_diflags2 & XFS_DIFLAG2_DAX) -- 2.51.2