On 13.02.23 18:08, Sean Christopherson wrote:
> On Mon, Feb 13, 2023, Mathias Krause wrote:
>> Move the 'capacity' member around to make use of the padding hole on 64
>> bit systems instead of introducing yet another one.
>>
>> This allows us to save 8 bytes per instance for 64 bit builds of which,
>> e.g., x86's struct kvm_vcpu_arch has a few.
>>
>> Signed-off-by: Mathias Krause <minipli@xxxxxxxxxxxxxx>
>> ---
>> include/linux/kvm_types.h | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/include/linux/kvm_types.h b/include/linux/kvm_types.h
>> index 76de36e56cdf..8e4f8fa31457 100644
>> --- a/include/linux/kvm_types.h
>> +++ b/include/linux/kvm_types.h
>> @@ -92,10 +92,10 @@ struct gfn_to_pfn_cache {
>> */
>> struct kvm_mmu_memory_cache {
>> int nobjs;
>> + int capacity;
>> gfp_t gfp_zero;
>> gfp_t gfp_custom;
>> struct kmem_cache *kmem_cache;
>> - int capacity;
>> void **objects;
>
> If we touch this, I vote to do a more aggressive cleanup and place nobjs next
> to objects, e.g.
>
> struct kvm_mmu_memory_cache {
> gfp_t gfp_zero;
> gfp_t gfp_custom;
> struct kmem_cache *kmem_cache;
> int capacity;
> int nobjs;
> void **objects;
> };
Ok
