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 <shake...@google.com>
Cc: Michal Hocko <mho...@kernel.org>
Cc: Johannes Weiner <han...@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov....@gmail.com>
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Greg Thelen <gthe...@google.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: Peter Feiner <pfei...@google.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: sta...@vger.kernel.org
---
Changelog since v1:
- replaced (GFP_KERNEL|__GFP_ACCOUNT) with GFP_KERNEL_ACCOUNT
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..6b8f11521c41 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_ACCOUNT);
if (!page)
return -ENOMEM;
cache->objects[cache->nobjs++] = page;
--
2.18.0.rc2.346.g013aa6912e-goog
