On 27/06/2018 20:13, Shakeel Butt wrote:
> The size of kvm's shadow page tables corresponds to the size of the
> guest virtual machines on the system. Large VMs can spend a significant
> amount of memory as shadow page tables which can not be left as system
> memory overhead. So, account shadow page tables to the kmemcg.
>
> Signed-off-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
> ---
> arch/x86/kvm/mmu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
> index d594690d8b95..c79a398300f5 100644
> --- a/arch/x86/kvm/mmu.c
> +++ b/arch/x86/kvm/mmu.c
> @@ -890,7 +890,7 @@ static int mmu_topup_memory_cache_page(struct kvm_mmu_memory_cache *cache,
> if (cache->nobjs >= min)
> return 0;
> while (cache->nobjs < ARRAY_SIZE(cache->objects)) {
> - page = (void *)__get_free_page(GFP_KERNEL);
> + page = (void *)__get_free_page(GFP_KERNEL|__GFP_ACCOUNT);
> if (!page)
> return -ENOMEM;
> cache->objects[cache->nobjs++] = page;
>
Queued, with
Cc: stable@xxxxxxxxxxxxxxx
Thanks,
Paolo
