From patchwork Sat Oct 26 21:25:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alberto Garcia X-Patchwork-Id: 11213903 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 21238112C for ; Sat, 26 Oct 2019 22:09:41 +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 DF45C2084C for ; Sat, 26 Oct 2019 22:09:40 +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="r7OujGt9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF45C2084C 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]:42964 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iOUFf-00066E-Q8 for patchwork-qemu-devel@patchwork.kernel.org; Sat, 26 Oct 2019 18:09:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60057) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iOTZj-000060-Tg for qemu-devel@nongnu.org; Sat, 26 Oct 2019 17:26:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iOTZi-0005MH-EG for qemu-devel@nongnu.org; Sat, 26 Oct 2019 17:26:19 -0400 Received: from fanzine.igalia.com ([178.60.130.6]:42497) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iOTZg-0005Ev-97; Sat, 26 Oct 2019 17:26:17 -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=j+YylPe465+jDntw2BoE/jfEGHLMej9fZq6HCeL7Hl0=; b=r7OujGt9Uil8Z9AgJfOkITmqRGePWckiWEmTkr8vNFhgEUgE9loBAAHG7HO9d0bP5cn+1vpJ4mhf0cGLysn/f7LXBfj2F+2PKGGSCfnn1d3Zrqu+/ikRWILU4WszSzXBlFdljKiM+Qh5/hmFnxEdyALE1q1xtJQKSmcGvouW1h0AOneOwwEBMyY+Z9g1iOng0DvDfmddnu0/n4zNDRz478f69JBtllTvnWjHt52amQEcteuSNzNISHOoWexhaHpN36qts7zG8MxAkG9ocpvExLiCoo4bT0n1zeVrRe/vhIiG2SwNL0P9YdEDEvqWlozV83U9dw63D+6XYFCo+ZKIyA==; Received: from 87-100-137-117.bb.dnainternet.fi ([87.100.137.117] helo=perseus.local) by fanzine.igalia.com with esmtpsa (Cipher TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim) id 1iOTZI-00045p-JH; Sat, 26 Oct 2019 23:25:52 +0200 Received: from berto by perseus.local with local (Exim 4.92) (envelope-from ) id 1iOTZ0-0001PC-8j; Sun, 27 Oct 2019 00:25:34 +0300 From: Alberto Garcia To: qemu-devel@nongnu.org Subject: [RFC PATCH v2 06/26] qcow2: Add dummy has_subclusters() function Date: Sun, 27 Oct 2019 00:25:08 +0300 Message-Id: <6ba30e63331b88719846e0394d6e81578ee2ae67.1572125022.git.berto@igalia.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 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 , Vladimir Sementsov-Ogievskiy , "Denis V . Lunev" 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 --- block/qcow2.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/block/qcow2.h b/block/qcow2.h index 940cd4c236..b3826b37c1 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -488,6 +488,12 @@ 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) {