From nobody Mon Feb 9 05:42:18 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=1591801752; cv=none; d=zohomail.com; s=zohoarc; b=BNA9/dTXpBYi3dfZ8ygzTXD/3GEyQYrximHVAFH7qZzsP2NNPWgirIJS8VTWLx8u+r3o3u9dQvBUZSF9bA20Xw8th6QMHgZCu04Ng6AuyX4W592LdoBjcRP4if+Q/sRz7rFTrVYCccg8d/Kn5/MmyB+RwJ21DCC+HPAWfeRl40s= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1591801752; 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=PelaHdUpXyQLyETSNjZxQedA2munXec4UfgCc0HKoeA=; b=EvcygdwP3mXjb/0LH3KsjLnjqeTOgk/XB5h9RogFVpgbu/bmCEpz5SBIWCRwvcT++fN+ztGnkqNLmEpnaboYDKaLEuglp1mS/pSDvx9cUD8626ybcY69voVmXsFXDThSBACxES+aK9flDhrDLtwqofAfuzKV7QMtghExDnrstQY= 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 1591801752082136.01416586792323; Wed, 10 Jun 2020 08:09:12 -0700 (PDT) Received: from localhost ([::1]:35606 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jj2Lm-0000wy-Nv for importer@patchew.org; Wed, 10 Jun 2020 11:09:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36138) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jj2Gu-0002fW-Ph; Wed, 10 Jun 2020 11:04:08 -0400 Received: from fanzine.igalia.com ([178.60.130.6]:58074) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jj2Gr-0006w0-Ep; Wed, 10 Jun 2020 11:04:08 -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 1jj2GR-0007gw-DE; Wed, 10 Jun 2020 17:03:39 +0200 Received: from berto by perseus.local with local (Exim 4.92) (envelope-from ) id 1jj2GC-0007N7-4D; Wed, 10 Jun 2020 17:03:24 +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=PelaHdUpXyQLyETSNjZxQedA2munXec4UfgCc0HKoeA=; b=S+NjU1Y8CDLgM9AQC08vuWqBZ44iwVtWa19KnJIw2cPrwEaGyBQKLPQtHQkrXwnEyr51WL2eLu1FtRv3XmCuNEtqwgWMEj/MsGvg8W9Wv8GxvEEZOY+k7Tt21JbrznzVDqPNHuV53G3IgROjeuTkuIR38LFDnKa9pB2YHV5xwJuTWiTfkjKA9lR1SNJeWWEZHdI84+3I/iw9MCPzoKlug51CaHtbuiEtgblCkLcvs2fXRoe50yp4cQpY4XXpGWJ5LZPKFdP2uiQZ9H3kClBwnlKHWhQKu00BNJLpzq0oEMCgXKs2OLN3/GC6zWt+S0alvXxgwFAq0gLogjJL20IsOg==; From: Alberto Garcia To: qemu-devel@nongnu.org Subject: [PATCH v8 16/34] qcow2: Add qcow2_cluster_is_allocated() Date: Wed, 10 Jun 2020 17:02:54 +0200 Message-Id: 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 = 2020/06/10 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+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 3aec6f452a..ea647c8bb5 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