From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=213.95.11.211 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794408969; b=dIeCR5Pmu5nR2W0foX84y04hiF1cH0zgc2L08vhdnKpt9QjWKt2WuE1pBBCdttveBweF Gmz6Plc2c63OHmFAD/aAf/BxmhQBV++/mxPFHBvDQbPDnPCA3B6WZPDmLfrcIRstHEdSB q8sOFGODOmuFSQYa1V/mTtECo215f2s4KDUMqocR7UzdSz/G9PqUeytxZthmFHPcCIDv8 DJA4ajtmMR4mV/LcNwX2Fi4cLwkn5HQBlrGWY3T622VTPU3PgORj8594H48Ssn4LMDB7b zOb+6X2otgK46B5s/ZX0LpuL3m1qJpFRD/DUO8E9VCBm0dMfwf9r3XnBQm29Y5r2Jxw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794408969; h=DMARC-Filter:Received:Date:From:To:Cc:Subject:Message-ID:References: MIME-Version:Content-Type:Content-Disposition:In-Reply-To:User-Agent; bh=GonZG2wwIvN+gNPTSiAAkhawJ65Nfia9tR3JjSU8YK0=; b=mVUqUUIl9I68CTSs6VL+CmZl25CaJwiSxBF1BYoOHkt13ChzaAW4QKy6rUVqCnLXCU1G CcwzDG4Y1fj5DikasrTKF8XXLIaYo5/MI9swsLvYTeWhqqcqhPby9DpGnlZ8FzMHREBHO Qjez13aus+YFug1G97yA5GUApLVxx/0kiMPmCX0BSlsR3cAeSsUQ8cNpTZCEgICIvf8UU wo/LjeplYRy98hXHA7/cKV157AXYfkXt61g7v51MMlOa0kWyYS1ZUEdoAdVFlwdng3cI2 eHICJce41eA6QmfvU/kzq5Hj/jXmFahalRyBPUBUzFxJ4nBpQ8wCrhXiAHzcOMFi1Yg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.remote-ip=213.95.11.211 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DDCB9606A324; Wed, 11 Nov 2026 14:56:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org DDCB9606A324 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id 4C15C68B05; Wed, 11 Nov 2026 15:55:56 +0100 (CET) Date: Wed, 11 Nov 2026 15:55:55 +0100 From: Christoph Hellwig To: Christian Brauner Cc: linux-fsdevel@vger.kernel.org, Jann Horn , Chris Mason , Josef Bacik , Christoph Hellwig , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, Alexander Viro , Jan Kara , linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, driver-core@lists.linux.dev, linux-mm@kvack.org, bpf@vger.kernel.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org, apparmor@lists.ubuntu.com, linux-nfs@vger.kernel.org, netdev@vger.kernel.org, fuse-devel@lists.linux.dev, linux-efi@vger.kernel.org, xen-devel@lists.xenproject.org, ocfs2-devel@lists.linux.dev, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-usb@vger.kernel.org, Amir Goldstein , linux-erofs@lists.ozlabs.org, linux-kselftest@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH RFC 01/41] loop: refuse backing files that aren't open for reading Message-ID: <20261111145555.GA9996@lst.de> References: <20261110-work-loop-pseudo-v1-0-4c998976c6c7@kernel.org> <20261110-work-loop-pseudo-v1-1-4c998976c6c7@kernel.org> X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261110-work-loop-pseudo-v1-1-4c998976c6c7@kernel.org> User-Agent: Mutt/1.5.17 (2007-11-01) The fix itself looks good: Reviewed-by: Christoph Hellwig But i wonder if we want a thin wrapper around ->read_iter/_write_iter to do this check so that it matches the normal read/write path?