From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:60604) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sc1sJ-0004QH-PM for qemu-devel@nongnu.org; Tue, 05 Jun 2012 18:05:16 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Sc1sH-00015A-Q5 for qemu-devel@nongnu.org; Tue, 05 Jun 2012 18:05:15 -0400 Received: from mail-pb0-f45.google.com ([209.85.160.45]:40874) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sc1sH-0000zZ-IP for qemu-devel@nongnu.org; Tue, 05 Jun 2012 18:05:13 -0400 Received: by mail-pb0-f45.google.com with SMTP id ro12so8716928pbb.4 for ; Tue, 05 Jun 2012 15:05:12 -0700 (PDT) Sender: Paolo Bonzini From: Paolo Bonzini Date: Wed, 6 Jun 2012 00:04:51 +0200 Message-Id: <1338933895-20677-4-git-send-email-pbonzini@redhat.com> In-Reply-To: <1338933895-20677-1-git-send-email-pbonzini@redhat.com> References: <1338933895-20677-1-git-send-email-pbonzini@redhat.com> Subject: [Qemu-devel] [PATCH v3 3/7] block: copy enable_write_cache in bdrv_append List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com Because the guest will be able to flip enable_write_cache, the actual state may not match what is used to open the new snapshot. Signed-off-by: Paolo Bonzini Signed-off-by: Kevin Wolf --- block.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/block.c b/block.c index 7538112..9bff401 100644 --- a/block.c +++ b/block.c @@ -1000,6 +1000,8 @@ void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top) tmp.buffer_alignment = bs_top->buffer_alignment; tmp.copy_on_read = bs_top->copy_on_read; + tmp.enable_write_cache = bs_top->enable_write_cache; + /* i/o timing parameters */ tmp.slice_time = bs_top->slice_time; tmp.slice_start = bs_top->slice_start; -- 1.7.10.1