On 2017-07-07 16:30, Pavel Butsykin wrote:
> Whenever l2/refcount table clusters are discarded from the file we can
> automatically drop unnecessary content of the cache tables. This reduces
> the chance of eviction useful cache data and eliminates inconsistent data
> in the cache with the data in the file.
> 
> Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
> ---
>  block/qcow2-cache.c    | 26 ++++++++++++++++++++++++++
>  block/qcow2-refcount.c | 14 ++++++++++++++
>  block/qcow2.h          |  3 +++
>  3 files changed, 43 insertions(+)

Reviewed-by: Max Reitz <mreitz@redhat.com>