From patchwork Wed Jun 10 15:02:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alberto Garcia X-Patchwork-Id: 11598087 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D0EEF739 for ; Wed, 10 Jun 2020 15:17:50 +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 A779A206F4 for ; Wed, 10 Jun 2020 15:17:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b="aGLP12Qr" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A779A206F4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=igalia.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:36634 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jj2U9-0005wA-Ro for patchwork-qemu-devel@patchwork.kernel.org; Wed, 10 Jun 2020 11:17:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36140) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jj2Gv-0002g0-9q; Wed, 10 Jun 2020 11:04:09 -0400 Received: from fanzine.igalia.com ([178.60.130.6]:58049) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jj2Gr-0006vy-AB; Wed, 10 Jun 2020 11:04:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=FLnW2yKPd876mhIBSmNOIZZESH7oUMAItbps7FGNKa4=; b=aGLP12Qr5492cCrhDe3LfjNDycEKGUjWlehspliefxHRaTEwUFdvHW4Fo0NRUcwjaSweMQO81zliNJssnmIhRxOgswfVdN2uZ3Y4NEh2Tuw/Zr+cUGliqiHt9VdnEwJ1ny/YsMuSStnEZ2NyyFGJTZKGqxQjVfLju0qQ9NYawM36IIxCkY5W33lH9lhg91n21ZtFntkZASGKZimjNNQsOuosb84IIUEiT9IRek7S4Yv0bzYKpT4EgUTtMlsY5i7oEWD0v9uTRvnPjHElRxWZtGRObNrhNGWC41dIvnSzBzECM6WQmHEoXx9Nm2e6XgWmpVVQVvAjDHptt3u78/BlPA==; Received: from [81.0.38.199] (helo=perseus.local) by fanzine.igalia.com with esmtpsa (Cipher TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim) id 1jj2GR-0007gl-Cb; Wed, 10 Jun 2020 17:03:39 +0200 Received: from berto by perseus.local with local (Exim 4.92) (envelope-from ) id 1jj2GB-0007Mi-Ss; Wed, 10 Jun 2020 17:03:23 +0200 From: Alberto Garcia To: qemu-devel@nongnu.org Subject: [PATCH v8 08/34] qcow2: Add dummy has_subclusters() function Date: Wed, 10 Jun 2020 17:02:46 +0200 Message-Id: <773d28d4d2ff8c0cf3d724c53a06269b8d106766.1591801197.git.berto@igalia.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=178.60.130.6; envelope-from=berto@igalia.com; helo=fanzine.igalia.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/10 11:03:39 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x (no timestamps) [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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-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 , Alberto Garcia , qemu-block@nongnu.org, Derek Su , Max Reitz Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" This function will be used by the qcow2 code to check if an image has subclusters or not. At the moment this simply returns false. Once all patches needed for subcluster support are ready then QEMU will be able to create and read images with subclusters and this function will return the actual value. Signed-off-by: Alberto Garcia Reviewed-by: Eric Blake Reviewed-by: Max Reitz Reviewed-by: Vladimir Sementsov-Ogievskiy --- block/qcow2.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/block/qcow2.h b/block/qcow2.h index eecbadc4cb..2064dd3d85 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -510,6 +510,12 @@ typedef enum QCow2MetadataOverlap { #define INV_OFFSET (-1ULL) +static inline bool has_subclusters(BDRVQcow2State *s) +{ + /* FIXME: Return false until this feature is complete */ + return false; +} + static inline uint64_t get_l2_entry(BDRVQcow2State *s, uint64_t *l2_slice, int idx) {