Re: [Qemu-devel] [RFC] Disk integrity in QEMU

[Jamie Lokier]

Dor Laor wrote:
> Actually this is what happens on mainline qemu with cache=off.

Have I understood right that cache=off on a qcow2 image only uses
O_DIRECT for the leaf image, and the chain of base images don't use
O_DIRECT?

Sometimes on a memory constrained host, where the (collective) guest
memory is nearly as big as the host memory, I'm not sure this is what
I want.

-- Jamie