From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:45902) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SWrmM-0007gX-Ry for qemu-devel@nongnu.org; Tue, 22 May 2012 12:17:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SWrmG-0001bu-GZ for qemu-devel@nongnu.org; Tue, 22 May 2012 12:17:46 -0400 Received: from mail-pz0-f45.google.com ([209.85.210.45]:34090) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SWrmG-0001ZD-2l for qemu-devel@nongnu.org; Tue, 22 May 2012 12:17:40 -0400 Received: by mail-pz0-f45.google.com with SMTP id v2so10214735dad.4 for ; Tue, 22 May 2012 09:17:39 -0700 (PDT) Sender: Paolo Bonzini From: Paolo Bonzini Date: Tue, 22 May 2012 18:17:14 +0200 Message-Id: <1337703438-9764-4-git-send-email-pbonzini@redhat.com> In-Reply-To: <1337703438-9764-1-git-send-email-pbonzini@redhat.com> References: <1337703438-9764-1-git-send-email-pbonzini@redhat.com> Subject: [Qemu-devel] [PATCH 1.2 3/7] block: always open protocol in writeback mode List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com Formats are entirely in charge of flushes for metadata writes. For guest-initiated writes, a writethrough cache is faked in the block layer. Signed-off-by: Paolo Bonzini --- block.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/block.c b/block.c index 7add33c..43b3de6 100644 --- a/block.c +++ b/block.c @@ -661,7 +661,7 @@ static int bdrv_open_common(BlockDriverState *bs, const char *filename, if (drv->bdrv_file_open) { ret = drv->bdrv_file_open(bs, filename, open_flags); } else { - ret = bdrv_file_open(&bs->file, filename, open_flags); + ret = bdrv_file_open(&bs->file, filename, open_flags | BDRV_O_CACHE_WB); if (ret >= 0) { ret = drv->bdrv_open(bs, open_flags); } -- 1.7.1