From 0dd047c39e7821c8e31f9133be12bc9be61c045c Mon Sep 17 00:00:00 2001 From: Alexandre Derumier Date: Tue, 26 Jul 2016 16:51:00 +0200 Subject: [PATCH 39/48] rbd: disable rbd_cache_writethrough_until_flush with cache=unsafe Signed-off-by: Alexandre Derumier --- block/rbd.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/block/rbd.c b/block/rbd.c index 498322b..e9c02c6 100644 --- a/block/rbd.c +++ b/block/rbd.c @@ -616,6 +616,10 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags, rados_conf_set(s->cluster, "rbd_cache", "true"); } + if (flags & BDRV_O_NO_FLUSH) { + rados_conf_set(s->cluster, "rbd_cache_writethrough_until_flush", "false"); + } + r = rados_connect(s->cluster); if (r < 0) { error_setg_errno(errp, -r, "error connecting"); -- 2.1.4