From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 93F374AC79F for ; Thu, 8 Jan 2026 12:20:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767874818; cv=none; b=J+WMkwP/kjjY/Btrcxgw9ndXrwCyjRbuDKgAMMk6HaO/Q1DZmt+p19PxAVxfOIYW8mO8+uoM2oFFXT4z4pMsIKciVFuA1jia/GM0tAxx/g6bLen0zIyLZs8CHGQMLMPZ8uBYIFhfN4s882OlyGweaZw+L8WaTnr7O6eXErENcuA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767874818; c=relaxed/simple; bh=NNpGr0TUosqGSN2a0EGi84k3Eo0OmIJDd6rO5DGlzxA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=gUiSIgCeM4Ujb/FA4YqKGkUbv494DLx5cGipWsyL3NzaswW9XTbHng9At7PqtAVqfSKZTlhTw9l2wMWdTAzoEZYep9rSuMZrAcKDOMkCzcVuLkVl5iiZugpU74Q/FJK9Ei38ABt54g2bgOfoy0KIEZUzJ3uDjxnJg5zTB7TW5FY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=D5w8XX5y; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="D5w8XX5y" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1767874814; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=O3gEBAPNPXaPH1lX1DR0amMzqk/RyPoLCSLo0EIYFeo=; b=D5w8XX5yj28poGLF3tYM0EmHQsdIejG1avhkBRdv5WzzZUOVIvc9qWslkqVd2GSSDvJYZj VqFDYOpkRL+39qs1msSfODyLP0DSCIBidMVao6zwDbwaDcYXQO9rchgofaMVuLIR8v+GMa Xj+Bu/kYg8gcL1DGns/YhqDf/TRVgw0= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-457-J4mfcCOBPt-WaBJOwseDYQ-1; Thu, 08 Jan 2026 07:20:13 -0500 X-MC-Unique: J4mfcCOBPt-WaBJOwseDYQ-1 X-Mimecast-MFC-AGG-ID: J4mfcCOBPt-WaBJOwseDYQ_1767874811 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 60BE21956059; Thu, 8 Jan 2026 12:20:11 +0000 (UTC) Received: from fedora (unknown [10.72.116.180]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id CE57430002D1; Thu, 8 Jan 2026 12:20:03 +0000 (UTC) Date: Thu, 8 Jan 2026 20:19:58 +0800 From: Ming Lei To: Caleb Sander Mateos Cc: Jens Axboe , Shuah Khan , linux-block@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Stanley Zhang , Uday Shankar , "Martin K . Petersen" Subject: Re: [PATCH v4 09/19] ublk: implement integrity user copy Message-ID: References: <20260108091948.1099139-1-csander@purestorage.com> <20260108091948.1099139-10-csander@purestorage.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260108091948.1099139-10-csander@purestorage.com> X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 On Thu, Jan 08, 2026 at 02:19:37AM -0700, Caleb Sander Mateos wrote: > From: Stanley Zhang > > Add a function ublk_copy_user_integrity() to copy integrity information > between a request and a user iov_iter. This mirrors the existing > ublk_copy_user_pages() but operates on request integrity data instead of > regular data. Check UBLKSRV_IO_INTEGRITY_FLAG in iocb->ki_pos in > ublk_user_copy() to choose between copying data or integrity data. > > Signed-off-by: Stanley Zhang > [csander: change offset units from data bytes to integrity data bytes, > fix CONFIG_BLK_DEV_INTEGRITY=n build, rebase on user copy refactor] > Signed-off-by: Caleb Sander Mateos Reviewed-by: Ming Lei Thanks, Ming