From nobody Mon Feb 9 02:38:40 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zoho.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=1571153440; cv=none; d=zoho.com; s=zohoarc; b=KrNH1R6P2w5500M4BSlO/R9o6a77kgs2NfXrLHnsyeArvFbZ/Nogw/A3Qvl1MFHO0XEatDiZWiKlSlhCpS7miVgAwoJDDqm5pce8t5KaSht2KcpBbl5GskuaQS7CY8ks0511PSs1kyPy+xL8UlNPSTpSUBoK9Ikh8fm9SoZxXVg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1571153440; 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=qmKlb9gHAF5qikvg/hwissybNRQvWCJ71g22MpPxHjc=; b=UAglsHOmQl3DNjcpDZpKE8JiKJ663t2LzMM40EZISBJliO1RJCOCZeDVkLMtHra5QhnTvyoyeUlYPfZ04xoUInC+iA1qbQJEgNBmNSNrl2oKRFcGMyBacBgR+uss+qrTknNMw+saWDWxOHqZxG8VR1Vuud6q+PGaGf7yvIaU4cg= ARC-Authentication-Results: i=1; mx.zoho.com; dkim=fail; spf=pass (zoho.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 1571153440729348.99535559053425; Tue, 15 Oct 2019 08:30:40 -0700 (PDT) Received: from localhost ([::1]:48744 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iKOmU-0000Yc-PR for importer@patchew.org; Tue, 15 Oct 2019 11:30:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48080) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iKOgy-0002kt-6t for qemu-devel@nongnu.org; Tue, 15 Oct 2019 11:24:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iKOgw-0003g3-Vd for qemu-devel@nongnu.org; Tue, 15 Oct 2019 11:24:55 -0400 Received: from fanzine.igalia.com ([178.60.130.6]:47111) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iKOgw-0003ZJ-4z; Tue, 15 Oct 2019 11:24:54 -0400 Received: from 82-181-115-92.bb.dnainternet.fi ([82.181.115.92] helo=perseus.local) by fanzine.igalia.com with esmtpsa (Cipher TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim) id 1iKOge-0003aT-0P; Tue, 15 Oct 2019 17:24:36 +0200 Received: from berto by perseus.local with local (Exim 4.92) (envelope-from ) id 1iKOfm-00061H-MH; Tue, 15 Oct 2019 18:23:42 +0300 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=qmKlb9gHAF5qikvg/hwissybNRQvWCJ71g22MpPxHjc=; b=NmCcZq0crz+5FjZf34+YAiQRwllhnm/Fs+JDtxiYL2iP8X/Igcw3/Y5kOLJr0PCvAphezFbuke2WkGRSE+qVB038T90IxgJ65fTzmEAfqo1wp3HlYJnzGTOdLU1Aog1kMv/pz8PTIZ6xUUKNeLDfUhJP/7YDwckHRQ3CTC+FgTsph/Evl+gUx4KHIa6Tre7n1jF1J1LPL4l8b9crb91RBNhXzcLQuSbXlKm30gTgbciR2zoJ26d5Dej5K96MKvXjgJ97r0cM6nvGmv5Pwa8Uz9bQ+v8hHIkFsXMrnnh/ZAxU88EEYaz1rQoOr0Eo2OLXI2pn4CEsM1NY/2abeq+XQA==; From: Alberto Garcia To: qemu-devel@nongnu.org Subject: [RFC PATCH 06/23] qcow2: Add dummy has_subclusters() function Date: Tue, 15 Oct 2019 18:23:17 +0300 Message-Id: <8acb804dd496964d07460f59ef39bdc63156c809.1571152571.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 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x (no timestamps) [generic] [fuzzy] X-Received-From: 178.60.130.6 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 , Anton Nefedov , Alberto Garcia , qemu-block@nongnu.org, Max Reitz , "Denis V . Lunev" 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 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 --- block/qcow2.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/block/qcow2.h b/block/qcow2.h index 0b68c55c01..6d6fc57f41 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -485,6 +485,12 @@ typedef enum QCow2MetadataOverlap { =20 #define INV_OFFSET (-1ULL) =20 +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) { --=20 2.20.1