From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39474) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bmfmZ-0006AS-S4 for qemu-devel@nongnu.org; Wed, 21 Sep 2016 07:33:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bmfmV-0007SW-KT for qemu-devel@nongnu.org; Wed, 21 Sep 2016 07:33:42 -0400 Received: from mail.ispras.ru ([83.149.199.45]:59370) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bmfmV-0007Ni-Ch for qemu-devel@nongnu.org; Wed, 21 Sep 2016 07:33:39 -0400 From: Pavel Dovgalyuk Date: Wed, 21 Sep 2016 14:33:26 +0300 Message-ID: <20160921113326.1420.66377.stgit@PASHA-ISP.def.inno> In-Reply-To: <20160921113303.1420.63544.stgit@PASHA-ISP.def.inno> References: <20160921113303.1420.63544.stgit@PASHA-ISP.def.inno> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [PATCH v4 4/8] block: implement bdrv_recurse_is_first_non_filter for blkreplay List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, jasowang@redhat.com, quintela@redhat.com, pbonzini@redhat.com, mst@redhat.com This patch adds bdrv_recurse_is_first_non_filter implementation for blkreplay driver. It allows creating snapshots when blkreplay is enabled. Signed-off-by: Pavel Dovgalyuk --- block/blkreplay.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/block/blkreplay.c b/block/blkreplay.c index 30f9d5f..ca18906 100644 --- a/block/blkreplay.c +++ b/block/blkreplay.c @@ -135,6 +135,12 @@ static int coroutine_fn blkreplay_co_flush(BlockDriverState *bs) return ret; } +static bool blkreplay_recurse_is_first_non_filter(BlockDriverState *bs, + BlockDriverState *candidate) +{ + return bdrv_recurse_is_first_non_filter(bs->file->bs, candidate); +} + static BlockDriver bdrv_blkreplay = { .format_name = "blkreplay", .protocol_name = "blkreplay", @@ -150,6 +156,9 @@ static BlockDriver bdrv_blkreplay = { .bdrv_co_pwrite_zeroes = blkreplay_co_pwrite_zeroes, .bdrv_co_pdiscard = blkreplay_co_pdiscard, .bdrv_co_flush = blkreplay_co_flush, + + .is_filter = true, + .bdrv_recurse_is_first_non_filter = blkreplay_recurse_is_first_non_filter, }; static void bdrv_blkreplay_init(void)