From patchwork Mon May 4 21:14:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Blake X-Patchwork-Id: 283442 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D97B2C3A5A9 for ; Mon, 4 May 2020 21:17:50 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A4E6C206A4 for ; Mon, 4 May 2020 21:17:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="UBcEL043" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A4E6C206A4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:59996 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jViTF-0006O0-Lq for qemu-devel@archiver.kernel.org; Mon, 04 May 2020 17:17:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46024) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jViQU-0003wW-6E for qemu-devel@nongnu.org; Mon, 04 May 2020 17:14:58 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:50905 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jViQT-0000oy-GX for qemu-devel@nongnu.org; Mon, 04 May 2020 17:14:57 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588626896; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=31dqIqUDKnqlmZMDCenW/Ew7xptQt0PLlXwqQjzyVL0=; b=UBcEL043EBqCsJRhOItuP2CsreWMGdp1YLl5VwUoSrljYQRGRqMwN2hDOig4CeEhYlg0uN KsBHObXSURANJkaclgBDlvXq/AjRKbEEyzD2d9Fao48N/cmw7NzS2XUfCjmcUh+yRW3jNw 4vcE3N9AmiMurNu18lI6ROFDR+qawqQ= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-79-AszOWea5MvCv6YRiDZntbg-1; Mon, 04 May 2020 17:14:52 -0400 X-MC-Unique: AszOWea5MvCv6YRiDZntbg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5D7AB462; Mon, 4 May 2020 21:14:51 +0000 (UTC) Received: from blue.redhat.com (ovpn-114-73.phx2.redhat.com [10.3.114.73]) by smtp.corp.redhat.com (Postfix) with ESMTP id DE5C36FF1B; Mon, 4 May 2020 21:14:50 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Subject: [PULL 3/4] block/nbd-client: drop max_block restriction from block_status Date: Mon, 4 May 2020 16:14:37 -0500 Message-Id: <20200504211438.195926-4-eblake@redhat.com> In-Reply-To: <20200504211438.195926-1-eblake@redhat.com> References: <20200504211438.195926-1-eblake@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.81; envelope-from=eblake@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/04 16:03:08 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Vladimir Sementsov-Ogievskiy , "open list:Network Block Dev..." , Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Vladimir Sementsov-Ogievskiy The NBD spec was updated (see nbd.git commit 9f30fedb) so that max_block doesn't relate to NBD_CMD_BLOCK_STATUS. So, drop the restriction. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Eric Blake Message-Id: <20200401150112.9557-2-vsementsov@virtuozzo.com> [eblake: tweak commit message to call out NBD commit] Signed-off-by: Eric Blake --- block/nbd.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/block/nbd.c b/block/nbd.c index 2160859f6499..d4d518a780c9 100644 --- a/block/nbd.c +++ b/block/nbd.c @@ -1320,9 +1320,7 @@ static int coroutine_fn nbd_client_co_block_status( NBDRequest request = { .type = NBD_CMD_BLOCK_STATUS, .from = offset, - .len = MIN(MIN_NON_ZERO(QEMU_ALIGN_DOWN(INT_MAX, - bs->bl.request_alignment), - s->info.max_block), + .len = MIN(QEMU_ALIGN_DOWN(INT_MAX, bs->bl.request_alignment), MIN(bytes, s->info.size - offset)), .flags = NBD_CMD_FLAG_REQ_ONE, };