From patchwork Tue May 5 17:38:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alberto Garcia X-Patchwork-Id: 11529719 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 0D96D1392 for ; Tue, 5 May 2020 17:44:58 +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 D73D8206B9 for ; Tue, 5 May 2020 17:44:57 +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="NyLt9hpi" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D73D8206B9 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]:56260 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jW1cn-0007To-0y for patchwork-qemu-devel@patchwork.kernel.org; Tue, 05 May 2020 13:44:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44086) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jW1Xd-0006qv-7M; Tue, 05 May 2020 13:39:37 -0400 Received: from fanzine.igalia.com ([178.60.130.6]:38804) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jW1Xb-00089b-Ka; Tue, 05 May 2020 13:39:36 -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=bOJpekKFhanaXAtJJocx2835CzPNarsQuYYCr3xcRi0=; b=NyLt9hpiNOTWf4zZsNrhm9Gn5GU62dJiPgR2TSQieUMnVACETwe2MQrJA0tTNC/d7ObHHZY0ipWH88tPei3QiY8B76Vjqqlyqmsbf424VKuJRJDLavX77Y6zInljBp0kG1uBuqUaLLSCSokW1QhKrQeLKszK01DLZKIEQgeJWx9re9M1+b2nrL6Fa7gWjznAftbZ0lDPD6/PyP5y3LXERRzi/JPxK4iv2hGCJIYrdXJdgkXpNV21H2EYOR0UuQYqPukXFKJ5Q5GD5Xml3GosdbHdxEzAqCfkT7t3m6Uz/k/B+QUtQUntAjZY6bvM3ECsjVPAaoPdEaUYVkWfI1Z/ug==; Received: from static.160.43.0.81.ibercom.com ([81.0.43.160] helo=perseus.local) by fanzine.igalia.com with esmtpsa (Cipher TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim) id 1jW1Ws-00025P-A8; Tue, 05 May 2020 19:38:50 +0200 Received: from berto by perseus.local with local (Exim 4.92) (envelope-from ) id 1jW1Wc-000441-TM; Tue, 05 May 2020 19:38:34 +0200 From: Alberto Garcia To: qemu-devel@nongnu.org Subject: [PATCH v5 15/31] qcow2: Add qcow2_cluster_is_allocated() Date: Tue, 5 May 2020 19:38:15 +0200 Message-Id: <020c6e625af4fcf64859c4f37f11d04efbebb0aa.1588699789.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 = 2020/05/05 13:38:50 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, Max Reitz Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" 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 be7816a3b8..b5db8d2f36 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -763,6 +763,12 @@ QCow2SubclusterType qcow2_get_subcluster_type(BlockDriverState *bs, } } +static inline bool qcow2_cluster_is_allocated(QCow2ClusterType type) +{ + return (type == QCOW2_CLUSTER_COMPRESSED || type == QCOW2_CLUSTER_NORMAL || + type == QCOW2_CLUSTER_ZERO_ALLOC); +} + /* Check whether refcounts are eager or lazy */ static inline bool qcow2_need_accurate_refcounts(BDRVQcow2State *s) {