On Fri, 21 Aug 2009 06:26:16 am Christoph Hellwig wrote: > Currently virtio-blk doesn't set any QUEUE_ORDERED_ flag by default, which > means it does not allow filesystems to use barriers. But the typical use > case for virtio-blk is to use a backed that uses synchronous I/O Really? Does qemu open with O_SYNC? I'm definitely no block expert, but this seems strange... Rusty. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html