From patchwork Wed May 23 03:04:29 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fam Zheng X-Patchwork-Id: 918715 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 40rHTS0Frkz9s1d for ; Wed, 23 May 2018 13:06:04 +1000 (AEST) Received: from localhost ([::1]:58935 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fLK6D-0001qJ-LN for incoming@patchwork.ozlabs.org; Tue, 22 May 2018 23:06:01 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42257) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fLK5Q-0001kq-3y for qemu-devel@nongnu.org; Tue, 22 May 2018 23:05:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fLK5P-0004Ze-8B for qemu-devel@nongnu.org; Tue, 22 May 2018 23:05:12 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:47196 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 1fLK5L-0004Vc-1i; Tue, 22 May 2018 23:05:07 -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 9FAE040201B6; Wed, 23 May 2018 03:05:06 +0000 (UTC) Received: from lemon.usersys.redhat.com (ovpn-12-70.pek2.redhat.com [10.72.12.70]) by smtp.corp.redhat.com (Postfix) with ESMTP id 77B8A217B432; Wed, 23 May 2018 03:05:02 +0000 (UTC) From: Fam Zheng To: qemu-devel@nongnu.org Date: Wed, 23 May 2018 11:04:29 +0800 Message-Id: <20180523030436.29097-4-famz@redhat.com> In-Reply-To: <20180523030436.29097-1-famz@redhat.com> References: <20180523030436.29097-1-famz@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 [10.11.55.6]); Wed, 23 May 2018 03:05:06 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Wed, 23 May 2018 03:05:06 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.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] [PATCH v5 03/10] raw: Implement copy offloading 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 , Stefan Hajnoczi , qemu-block@nongnu.org, Peter Lieven , Max Reitz , Ronnie Sahlberg , Paolo Bonzini Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Just pass down to ->file. Signed-off-by: Fam Zheng Reviewed-by: Stefan Hajnoczi --- block/raw-format.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/block/raw-format.c b/block/raw-format.c index b69a0674b3..f2e468df6f 100644 --- a/block/raw-format.c +++ b/block/raw-format.c @@ -497,6 +497,36 @@ static int raw_probe_geometry(BlockDriverState *bs, HDGeometry *geo) return bdrv_probe_geometry(bs->file->bs, geo); } +static int coroutine_fn raw_co_copy_range_from(BlockDriverState *bs, + BdrvChild *src, uint64_t src_offset, + BdrvChild *dst, uint64_t dst_offset, + uint64_t bytes, BdrvRequestFlags flags) +{ + int ret; + + ret = raw_adjust_offset(bs, &src_offset, bytes, false); + if (ret) { + return ret; + } + return bdrv_co_copy_range_from(bs->file, src_offset, dst, dst_offset, + bytes, flags); +} + +static int coroutine_fn raw_co_copy_range_to(BlockDriverState *bs, + BdrvChild *src, uint64_t src_offset, + BdrvChild *dst, uint64_t dst_offset, + uint64_t bytes, BdrvRequestFlags flags) +{ + int ret; + + ret = raw_adjust_offset(bs, &dst_offset, bytes, true); + if (ret) { + return ret; + } + return bdrv_co_copy_range_to(src, src_offset, bs->file, dst_offset, bytes, + flags); +} + BlockDriver bdrv_raw = { .format_name = "raw", .instance_size = sizeof(BDRVRawState), @@ -513,6 +543,8 @@ BlockDriver bdrv_raw = { .bdrv_co_pwrite_zeroes = &raw_co_pwrite_zeroes, .bdrv_co_pdiscard = &raw_co_pdiscard, .bdrv_co_block_status = &raw_co_block_status, + .bdrv_co_copy_range_from = &raw_co_copy_range_from, + .bdrv_co_copy_range_to = &raw_co_copy_range_to, .bdrv_truncate = &raw_truncate, .bdrv_getlength = &raw_getlength, .has_variable_length = true,