From patchwork Tue Jul 5 04:41:24 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Devin Nakamura X-Patchwork-Id: 103191 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [140.186.70.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 34FFFB6F54 for ; Tue, 5 Jul 2011 14:45:11 +1000 (EST) Received: from localhost ([::1]:46628 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QdxVS-00085Y-RZ for incoming@patchwork.ozlabs.org; Tue, 05 Jul 2011 00:45:06 -0400 Received: from eggs.gnu.org ([140.186.70.92]:40415) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QdxS1-00084L-GH for qemu-devel@nongnu.org; Tue, 05 Jul 2011 00:41:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QdxS0-0000TG-2V for qemu-devel@nongnu.org; Tue, 05 Jul 2011 00:41:33 -0400 Received: from mail-gx0-f173.google.com ([209.85.161.173]:54493) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QdxRz-0000T3-Ha for qemu-devel@nongnu.org; Tue, 05 Jul 2011 00:41:31 -0400 Received: by gxk26 with SMTP id 26so2602942gxk.4 for ; Mon, 04 Jul 2011 21:41:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:to:subject:date:message-id:x-mailer:in-reply-to:references; bh=LgWm4I+5qnLlYjYVzgziyd7yx+yNQOrSvVTW9wA6ZmM=; b=A1cST+JxttaTIYOaDg5lspmai3Kc65794j+5bWiez7+CVSErg7I0ZtswY4bfTECwrH DQSeKGllLSthe7Vy2ecmQS2ZiLVeeBrGppkgmKFrAKWPhUkPPacQLtfEHOv08eiR/567 2gbnPK+rCzM8XzBVqXOs9Qf3XO5rf2a7v/X/M= Received: by 10.101.1.19 with SMTP id d19mr2956265ani.10.1309840890815; Mon, 04 Jul 2011 21:41:30 -0700 (PDT) Received: from localhost.localdomain (d72-39-252-38.home1.cgocable.net [72.39.252.38]) by mx.google.com with ESMTPS id v26sm3871190ano.42.2011.07.04.21.41.30 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 04 Jul 2011 21:41:30 -0700 (PDT) From: Devin Nakamura To: qemu-devel@nongnu.org Date: Tue, 5 Jul 2011 00:41:24 -0400 Message-Id: <1309840884-32409-5-git-send-email-devin122@gmail.com> X-Mailer: git-send-email 1.7.6.rc1 In-Reply-To: <1309840884-32409-1-git-send-email-devin122@gmail.com> References: <1309840884-32409-1-git-send-email-devin122@gmail.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 209.85.161.173 Subject: [Qemu-devel] [PATCH 5/5] block: add bdrv_copy_header() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Signed-off-by: Devin Nakamura --- block.c | 10 ++++++++++ block.h | 2 ++ 2 files changed, 12 insertions(+), 0 deletions(-) diff --git a/block.c b/block.c index c9ea201..c6c36e7 100644 --- a/block.c +++ b/block.c @@ -3061,3 +3061,13 @@ int bdrv_map(BlockDriverState *bs, uint64_t *guest_offset, return drv->bdrv_map(bs, guest_offset, host_offset, contiguous_bytes); } + +int bdrv_copy_header(BlockDriverState *bs) +{ + BlockDriver *drv = bs->drv; + if (!drv) + return -ENOMEDIUM; + if (!drv->bdrv_copy_header) + return -ENOTSUP; + return drv->bdrv_copy_header(bs); +} diff --git a/block.h b/block.h index ed21ead..0583875 100644 --- a/block.h +++ b/block.h @@ -256,6 +256,8 @@ int bdrv_get_mapping(BlockDriverState *bs, uint64_t *guest_offset, uint64_t *host_offset, uint64_t *contiguous_bytes); int bdrv_map(BlockDriverState *bs, uint64_t *guest_offset, uint64_t *host_offset, uint64_t *contiguous_bytes); +int bdrv_copy_header(BlockDriverState *bs); + typedef enum { BLKDBG_L1_UPDATE,