Re: JFYI: ext4 bug triggerable by kvm

Christoph Hellwig
2010-08-16T18:42:38Z

On Mon, Aug 16, 2010 at 09:43:09AM -0500, Anthony Liguori wrote:
> >Also, ext4 is _very_ slow on O_SYNC writes (which is
> >used in kvm with default cache).
>
> Yeah, we probably need to switch to sync_file_range() to avoid the
> journal commit on every write.
>

No, we don't. sync_file_range does not actually provide any data
integrity.