Re: [Qemu-devel] [PATCH 3/6] block: Remove BDRV_O_COPY_ON_READ for bs->file

[Max Reitz]

On 25.04.2014 19:51, Kevin Wolf wrote:
> Copy on Read makes sense on the format level where backing files are
> implemented, but it's not required on the protocol level. While it
> shouldn't actively break anything to have COR enabled on both layers,
> needless serialisation and allocation checks may impact performance.
>
> Signed-off-by: Kevin Wolf <address@hidden>
> ---
>   block.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Max Reitz <address@hidden>