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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. [shakeelb@google.com: replace (GFP_KERNEL|__GFP_ACCOUNT) with GFP_KERNEL_ACCOUNT] Link: http://lkml.kernel.org/r/20180629140224.205849-1-shakeelb@google.com Link: http://lkml.kernel.org/r/20180627181349.149778-1-shakeelb@google.com Signed-off-by: Shakeel Butt <shakeelb@google.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Greg Thelen <gthelen@google.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Peter Feiner <pfeiner@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>