[Qemu-devel] Re: [PATCH] Add cache=volatile parameter to -drive

[Kevin Wolf]

Am 17.05.2010 12:14, schrieb Alexander Graf:
> Usually the guest can tell the host to flush data to disk. In some cases we
> don't want to flush though, but try to keep everything in cache.
> 
> So let's add a new cache value to -drive that allows us to set the cache
> policy to most aggressive, disabling flushes. We call this mode "volatile",
> as guest data is not guaranteed to survive host crashes anymore.
> 
> This patch also adds a noop function for aio, so we can do nothing in AIO
> fashion.
> 
> Signed-off-by: Alexander Graf <address@hidden>

Thanks, looks good to me now. Applied it to the block branch, but
depending on Anthony's opinion I might drop it again.

Kevin