[pve-devel] [PATCH] qemu-img convert : use default cache=unsafe instead writeback

[Dietmar Maurer]

> > is this really safe?
> > 
> > this also impacts cloning and the "move disk" function.
> > what if i clone a vm to an nfs share and immediately move the vm to 
> > another host, then start it?
> 
> I guess qemu-img does a flush before closing (or flush is automatic on
> close?)?

Answering myself, 'close' does not issue flush/fsync. So I wonder if qemu-img
issue a flush?