Am 21.10.2011 20:44, schrieb Paolo Bonzini: > On 10/21/2011 07:08 PM, Kevin Wolf wrote: >> Avi complained that not even writing out qcow2's cache on bdrv_flush() made >> cache=unsafe too unsafe to be useful. He's got a point. > > Why? cache=unsafe is explicitly allowing to s/data/manure/ on crash.
It's surely expected on a host crash, but is it for a qemu crash? cache=unsafe was introduced to avoid fsync() costs, which it still does after this patch. > If you do this for raw-posix, you need to do it for all protocols. rbd could use it, too, right. Any other protocol I missed? Kevin
