From nobody Mon Feb 9 06:07:53 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1590332136; cv=none; d=zohomail.com; s=zohoarc; b=NO4q3TJi9JcaaDK2HaQUCddGdMBih78ePEEWprgYTLArkVCkhAQgIwwgt1JAUFws3qzkuoRPdHP8Lj5vW4pTQdt+Ndpy25yJpU77ep5gA1UHpNs20VBhkwR0YSy45xp+JP5msO3z034vxWW0IXdlbCf7LChgv7U7Ysy4Z6H8GZk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1590332136; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=mTGU94LO6HR/OMZWQ6pWem/jp50yK+PBvsvLfQohQOI=; b=Ug6DaYlNsEuS3FYZhwvwtSeG8RFKOdttK7S99sdERb/QZRedkejZpdtEe4gI9d9vL3zzmXnS2ca4hLdKBPfckbm2JFDf+ZvEA4oySvV4XNx5E60QinX4IaUGQ+ymVVmzUcbd4/QhL2t6mN//NuAZbGjXAuizDkSQLUHHLY+VFxo= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1590332136526312.74103888517595; Sun, 24 May 2020 07:55:36 -0700 (PDT) Received: from localhost ([::1]:56790 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jcs2J-00088w-6G for importer@patchew.org; Sun, 24 May 2020 10:55:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45794) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jcrzw-0002pZ-97; Sun, 24 May 2020 10:53:08 -0400 Received: from fanzine.igalia.com ([178.60.130.6]:37896) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jcrzv-0002lM-9f; Sun, 24 May 2020 10:53:07 -0400 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 1jcrzF-0007GX-76; Sun, 24 May 2020 16:52:25 +0200 Received: from berto by perseus.local with local (Exim 4.92) (envelope-from ) id 1jcryv-0005KU-4R; Sun, 24 May 2020 16:52:05 +0200 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=mTGU94LO6HR/OMZWQ6pWem/jp50yK+PBvsvLfQohQOI=; b=WKX2B/p008WVqZIo4o7Y57/nua8D3dTy3yv2HdAyr3fNDrDtyFclw6AKN9CiYWOAJK88fXpn/3JawWlEiAkQLPxowVpi4k+Qhv0n42Ei807Yp8ZQEuGTL3KmL8lsP8NJsoFbsVzpaHWoUftzy/gzDs3/F73HOdypvkeY+Z5yM8qR23Ggp0/AtyBjVPjyAfvkK8hajomfvH/vKLE+8Ar6WmtLYYlUFrGrnQT5ijcSY7hd2EcrtsQ02EOWFx05gJ6lOxiRygDGL5+qs2/TbVAfRIjKO3jAkPcmCsd2T7dGYgdCteiSjeX0xuyNCwJup9iz2ShexcPJS2lg7aVu//h1BA==; From: Alberto Garcia To: qemu-devel@nongnu.org Subject: [PATCH v6 16/32] qcow2: Add qcow2_cluster_is_allocated() Date: Sun, 24 May 2020 16:51:36 +0200 Message-Id: <19b963820f8e54c0ec833d7aa6c0b809368a2b6a.1590331741.git.berto@igalia.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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 = 2020/05/24 10:52:20 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_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 , Alberto Garcia , qemu-block@nongnu.org, Derek Su , Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" This helper function tells us if a cluster is allocated (that is, there is an associated host offset for it). Signed-off-by: Alberto Garcia Reviewed-by: Eric Blake --- block/qcow2.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/block/qcow2.h b/block/qcow2.h index 27dbcbc502..ba7614e406 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -780,6 +780,12 @@ QCow2SubclusterType qcow2_get_subcluster_type(BlockDri= verState *bs, } } =20 +static inline bool qcow2_cluster_is_allocated(QCow2ClusterType type) +{ + return (type =3D=3D QCOW2_CLUSTER_COMPRESSED || type =3D=3D QCOW2_CLUS= TER_NORMAL || + type =3D=3D QCOW2_CLUSTER_ZERO_ALLOC); +} + /* Check whether refcounts are eager or lazy */ static inline bool qcow2_need_accurate_refcounts(BDRVQcow2State *s) { --=20 2.20.1