From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57268) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e9U5E-0005T3-Fi for qemu-devel@nongnu.org; Tue, 31 Oct 2017 06:47:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e9U5C-0003RL-PA for qemu-devel@nongnu.org; Tue, 31 Oct 2017 06:47:48 -0400 Received: from mail.ispras.ru ([83.149.199.45]:39784) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e9U5C-0003QD-Gw for qemu-devel@nongnu.org; Tue, 31 Oct 2017 06:47:46 -0400 From: Pavel Dovgalyuk Date: Tue, 31 Oct 2017 13:47:46 +0300 Message-ID: <20171031104746.3079.74772.stgit@pasha-VirtualBox> In-Reply-To: <20171031104741.3079.26584.stgit@pasha-VirtualBox> References: <20171031104741.3079.26584.stgit@pasha-VirtualBox> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [RFCPATCH01/20] block: implement bdrv_snapshot_goto for blkreplay List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: dovgaluk@ispras.ru From: Pavel Dovgalyuk This patch enables making snapshots with blkreplay used in block devices. This function is required to make bdrv_snapshot_goto without calling .bdrv_open which is not implemented. Signed-off-by: Pavel Dovgalyuk --- block/blkreplay.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/block/blkreplay.c b/block/blkreplay.c index 61e44a1..82a88f8 100755 --- a/block/blkreplay.c +++ b/block/blkreplay.c @@ -127,6 +127,12 @@ static int coroutine_fn blkreplay_co_flush(BlockDriverState *bs) return ret; } +static int blkreplay_snapshot_goto(BlockDriverState *bs, + const char *snapshot_id) +{ + return bdrv_snapshot_goto(bs->file->bs, snapshot_id); +} + static BlockDriver bdrv_blkreplay = { .format_name = "blkreplay", .protocol_name = "blkreplay", @@ -143,6 +149,8 @@ static BlockDriver bdrv_blkreplay = { .bdrv_co_pwrite_zeroes = blkreplay_co_pwrite_zeroes, .bdrv_co_pdiscard = blkreplay_co_pdiscard, .bdrv_co_flush = blkreplay_co_flush, + + .bdrv_snapshot_goto = blkreplay_snapshot_goto, }; static void bdrv_blkreplay_init(void)