From patchwork Sat May 12 01:25:27 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Snow X-Patchwork-Id: 10395699 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E3B6760215 for ; Sat, 12 May 2018 01:28:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CA2AD286D0 for ; Sat, 12 May 2018 01:28:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BD0BF287C5; Sat, 12 May 2018 01:28:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id ABE69286D0 for ; Sat, 12 May 2018 01:28:06 +0000 (UTC) Received: from localhost ([::1]:33815 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fHJKP-0007gM-Qs for patchwork-qemu-devel@patchwork.kernel.org; Fri, 11 May 2018 21:28:05 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40164) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fHJI7-0006KF-L5 for qemu-devel@nongnu.org; Fri, 11 May 2018 21:25:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fHJI6-0006SM-UE for qemu-devel@nongnu.org; Fri, 11 May 2018 21:25:43 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:33920 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fHJI4-0006Kf-8g; Fri, 11 May 2018 21:25:40 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id CF0F71520DE; Sat, 12 May 2018 01:25:39 +0000 (UTC) Received: from probe.bos.redhat.com (dhcp-17-231.bos.redhat.com [10.18.17.231]) by smtp.corp.redhat.com (Postfix) with ESMTP id 74852215CDA7; Sat, 12 May 2018 01:25:38 +0000 (UTC) From: John Snow To: qemu-block@nongnu.org, qemu-devel@nongnu.org Date: Fri, 11 May 2018 21:25:27 -0400 Message-Id: <20180512012537.22478-3-jsnow@redhat.com> In-Reply-To: <20180512012537.22478-1-jsnow@redhat.com> References: <20180512012537.22478-1-jsnow@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Sat, 12 May 2018 01:25:39 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Sat, 12 May 2018 01:25:39 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'jsnow@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [RFC PATCH 02/12] qcow2/dirty-bitmap: cache loaded bitmaps X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Vladimir Sementsov-Ogievskiy , Markus Armbruster , Max Reitz , John Snow Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP For bitmaps that we succeeded in loading, we can cache a reference to that object. This will let us iterate over the more convenient form of in-memory bitmaps for qemu-img bitmap manipulation tools. Signed-off-by: John Snow --- block/qcow2-bitmap.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/qcow2-bitmap.c b/block/qcow2-bitmap.c index fb0a4f3ec4..d89758f235 100644 --- a/block/qcow2-bitmap.c +++ b/block/qcow2-bitmap.c @@ -986,6 +986,7 @@ bool qcow2_load_dirty_bitmaps(BlockDriverState *bs, Error **errp) if (bitmap == NULL) { goto fail; } + bm->dirty_bitmap = bitmap; if (!(bm->flags & BME_FLAG_AUTO)) { bdrv_disable_dirty_bitmap(bitmap);