From patchwork Thu Mar 29 11:09:13 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fam Zheng X-Patchwork-Id: 10315007 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 97F7760383 for ; Thu, 29 Mar 2018 11:16:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9936E24603 for ; Thu, 29 Mar 2018 11:16:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8E14C2A220; Thu, 29 Mar 2018 11:16:45 +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=-6.9 required=2.0 tests=BAYES_00,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 018B324603 for ; Thu, 29 Mar 2018 11:16:44 +0000 (UTC) Received: from localhost ([::1]:41955 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f1VXv-0007gS-97 for patchwork-qemu-devel@patchwork.kernel.org; Thu, 29 Mar 2018 07:16:43 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60813) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f1VRU-0001rj-JE for qemu-devel@nongnu.org; Thu, 29 Mar 2018 07:10:09 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1f1VRT-0003J3-Jr for qemu-devel@nongnu.org; Thu, 29 Mar 2018 07:10:04 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:57656 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 1f1VRN-0003Ha-Et; Thu, 29 Mar 2018 07:09:57 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 242A74070203; Thu, 29 Mar 2018 11:09:57 +0000 (UTC) Received: from lemon.usersys.redhat.com (ovpn-12-85.pek2.redhat.com [10.72.12.85]) by smtp.corp.redhat.com (Postfix) with ESMTP id C4B1C2024CA4; Thu, 29 Mar 2018 11:09:53 +0000 (UTC) From: Fam Zheng To: qemu-devel@nongnu.org Date: Thu, 29 Mar 2018 19:09:13 +0800 Message-Id: <20180329110914.20888-8-famz@redhat.com> In-Reply-To: <20180329110914.20888-1-famz@redhat.com> References: <20180329110914.20888-1-famz@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Thu, 29 Mar 2018 11:09:57 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Thu, 29 Mar 2018 11:09:57 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'famz@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 7/8] block-backend: Add blk_co_copy_range 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 , Fam Zheng , qemu-block@nongnu.org, Max Reitz , Stefan Hajnoczi , pbonzini@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP It's a BlockBackend wrapper of bdrv_co_copy_range. Signed-off-by: Fam Zheng --- block/block-backend.c | 8 ++++++++ include/sysemu/block-backend.h | 4 ++++ 2 files changed, 12 insertions(+) diff --git a/block/block-backend.c b/block/block-backend.c index 681b240b12..54b0789282 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -2217,3 +2217,11 @@ void blk_unregister_buf(BlockBackend *blk, void *host) { bdrv_unregister_buf(blk_bs(blk), host); } + +int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in, + BlockBackend *blk_out, int64_t off_out, + int bytes) +{ + return bdrv_co_copy_range(blk_in->root, off_in, blk_out->root, off_out, + bytes); +} diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 92ab624fac..1fde14b461 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -232,4 +232,8 @@ void blk_set_force_allow_inactivate(BlockBackend *blk); void blk_register_buf(BlockBackend *blk, void *host, size_t size); void blk_unregister_buf(BlockBackend *blk, void *host); +int blk_co_copy_range(BlockBackend *blk_in, int64_t off_in, + BlockBackend *blk_out, int64_t off_out, + int bytes); + #endif