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 0FAB82BEC57; Thu, 19 Mar 2026 17:03:17 +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=1773939797; cv=none; b=qdvE9mzoR+cSzNm5uFJmR3VCyihhzIjtzGkVnTSyGTVDynhaAB6ZJckMICvZl8ifD55RoKn6fWUReoc+X9RFZtnCW38tRoZOoOFLxvGxsMU8Vy4h31aeAuQLfYcjUnk1jl8Rk5VN7rqf7hznEDV2fm9Vn7H+mc4/XNTylJVfys4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773939797; c=relaxed/simple; bh=s36P9QLO9GzyT4MQJjm1imoOYbBZv4qo+rih8qa1TLU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jk2be4tfRg1b1jGSEK1WGk497M9CjHYo0kP4Xqbp8EiEs1bui2kAmG4pd6rL2ya+CPVKGARhQfJVSiDJePg/kHdT863U75a+TqLbhmq1zv4pevJ7ewNG/YTfO/IjrW31SLf+bpUHpzGSOn2Wh9psOuj6Ol1Ma0IPnMet9s79nlk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=H9kO058N; 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="H9kO058N" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BFCA5C2BCB5; Thu, 19 Mar 2026 17:03:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773939796; bh=s36P9QLO9GzyT4MQJjm1imoOYbBZv4qo+rih8qa1TLU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=H9kO058NfDCusHyTyG1DgKcXwDeiFFv/WA30KSEvb4t9/RZzYDbpTeqRAJjMR1J1+ LiInizcGOD2fZdss8Tg/5ZFjC12hxScN0tQ5IJ3arW3lPpfjgVpVc1yWE2OhQPphlo VjWd4ELPC3fhcQzs5xUAipzzN89dxTSm/Srmphw9OXg/GU0vyXjLDC7sayfOeIaJRX 4UgmKPtJrnbGT1ytnGAtc4Vuix8O/RRzC1PA59FDbDr6lq4NddNcB6yJK7F8yEutlK 6/f+zxd7i4jLmvhAhEtbpdZ/pk9pGnk7/CTLVL9d+RYZRoDDx8ygpL4AhDPfqFzIRg tRbHU7Bmy9LaQ== 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 v5 14/25] xfs: don't allow to enable DAX on fs-verity sealed inode Date: Thu, 19 Mar 2026 18:02:01 +0100 Message-ID: <20260319170231.1455553-15-aalbersh@kernel.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20260319170231.1455553-1-aalbersh@kernel.org> References: <20260319170231.1455553-1-aalbersh@kernel.org> Precedence: bulk X-Mailing-List: linux-btrfs@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