From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794302983; b=2qruo7G5j7oZFYhaiDk/PTL99PsazPIrsc+ZeUaF0/D557/UcLzTZu+7qGBOYqbk2kL8 gwetj8xrCaWqj/s1OffIEAYnQSyqmmZxSOqp41TlE8VKdRUhDCbBZ2Ujfj9XcxWRCH+ks flJdIWHBGM5RR293+/Q2I+es/yq9zotFFtgxwSJm37lIMNm0v/+HIwbWnTy930bxnsViM 9x3aHYEouMgQSeNU+mx/TxNv3GAXzu4U6f5/CaoHozZIekZBI2Yp5dVFy724vd1DkHkX+ YtWpb+IBwwnPOGY+Pri1gM4l0GyW8ktz/aZZQdXpAyN15sL108P8tqWVMuTNyjB/KPw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794302983; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=l1oBAuJNTpnSLKo8aNMVa3sFJ0Kfo9FyOtGOiuLkmJg=; b=K7RriC9u1AeS3xNxBBtJUuoEn+cyoOUky45swHQjWxAoS0kSbl47kPDpQrKlMm+sP6Mp UGh9rnaehSeArQtO4iDO/0QoALJZL5kFD7+0qF837YJebFLRyM6MceI8/PjTIvRjXmct9 io1QrTYQ5Ec3M4+0r0tgybEWQbcEtIRnBPGFs0SAHs/hcnQtpGjoZoxZu+p5r/Snqk/0F rEpa5QTioMQ09UNZ6J1qtKc4ti35IFn7ZwK+KR8F+nrDknQs0ZiWD0xIGZiAb5EkCSXRv 1UDF+In+8TS5PsqeFTz/1KEjy/cQhPfyMEb8uf8v7s9uH/xo6izMhxa9byA+511duWg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=SscateFN; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3F281606C65D; Tue, 10 Nov 2026 09:29:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=SscateFN Received: by smtp.kernel.org (Postfix) with ESMTPSA id 38D681F008BE; Tue, 10 Nov 2026 09:29:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794302982; bh=l1oBAuJNTpnSLKo8aNMVa3sFJ0Kfo9FyOtGOiuLkmJg=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=SscateFNK9IPN8FQBVcFdsgUT83abd8bXMwufOw5Z8okh+z5qeo4PH9uKEqHDoSgS BspFaZEjbC+F8822tXCPEsdp4ACBR+Z2rOUtSJaQOTOaseoOrM9Odc+QTgS/l438yF uNhAMaeW11LouFcJxPs3Q8XSdu4ilzebLZL5ZrPIsMrPmaNwCTKQ7pBlX+h/nuBbWF hl36h1L4pv/ThB10B2AsREJvmFlUpUn+3EFUFyNg4uvpmqRBBsTJiH/j53CCkF/Be5 wEfOCtiLLzZF7T1YCH4ADzOgKOEU1HCdtQKxc2BPbRA/DffR5luNyCN9S3ObY6NbTo A/L45bouWvVHw== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH RFC 33/41] fs: add file_is_pseudo() Reply-To: sashiko-reviews@lists.linux.dev To: "Christian Brauner" Cc: linux-security-module@vger.kernel.org, selinux@vger.kernel.org, linux-s390@vger.kernel.org, linux-usb@vger.kernel.org, "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" , "Mark Fasheh" , "Joel Becker" , "Joseph Qi" In-Reply-To: <20261110-work-loop-pseudo-v1-33-4c998976c6c7@kernel.org> References: <20261110-work-loop-pseudo-v1-0-4c998976c6c7@kernel.org> <20261110-work-loop-pseudo-v1-33-4c998976c6c7@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 10 Nov 2026 09:29:41 +0000 X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Add a helper to check whether a file is a regular file on a pseudo > filesystem. Only regular files count. Device nodes on pseudo filesystems > such as devpts, binderfs or the block devices on bdevfs are what they > are. >=20 > Look at the inode that actually provides the data via d_real_inode(). > overlayfs accepts sysfs, cgroup2, debugfs, tracefs, configfs and > securityfs as lower layers and reads of such an overlayfs file are > served by the file on the pseudo filesystem. Checking the overlayfs > inode would miss that. >=20 > No functional changes. >=20 > Signed-off-by: Christian Brauner (Amutable) Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261110-work-loop-= pseudo-v1-0-4c998976c6c7@kernel.org?part=3D33