From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:41314) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qmf1k-0001j0-0r for qemu-devel@nongnu.org; Fri, 29 Jul 2011 00:50:25 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qmf1i-0000Po-UI for qemu-devel@nongnu.org; Fri, 29 Jul 2011 00:50:23 -0400 Received: from mail-iy0-f173.google.com ([209.85.210.173]:46817) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qmf1i-0000NN-P8 for qemu-devel@nongnu.org; Fri, 29 Jul 2011 00:50:22 -0400 Received: by mail-iy0-f173.google.com with SMTP id 39so4186308iyb.4 for ; Thu, 28 Jul 2011 21:50:22 -0700 (PDT) From: Devin Nakamura Date: Fri, 29 Jul 2011 00:49:36 -0400 Message-Id: <1311914994-20482-7-git-send-email-devin122@gmail.com> In-Reply-To: <1311914994-20482-1-git-send-email-devin122@gmail.com> References: <1311914994-20482-1-git-send-email-devin122@gmail.com> Subject: [Qemu-devel] [RFC 06/24] block: add bdrv_copy_header() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, Devin Nakamura Signed-off-by: Devin Nakamura --- block.c | 12 ++++++++++++ block.h | 2 ++ 2 files changed, 14 insertions(+), 0 deletions(-) diff --git a/block.c b/block.c index 98a9491..28b4418 100644 --- a/block.c +++ b/block.c @@ -3125,3 +3125,15 @@ 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 e021394..2426b62 100644 --- a/block.h +++ b/block.h @@ -263,6 +263,8 @@ 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, -- 1.7.6.rc1