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| author | Shakeel Butt <shakeelb@google.com> | 2018-07-27 02:37:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-03 08:47:31 +0300 |
| commit | a84297b8711dae583dbb6b127e3e94d6c01f0c29 (patch) | |
| tree | d07f34ed7e0f8f12e7fedf0634ee39a4ebc13f7b /arch | |
| parent | 8d163441d5f8f07f998b97fe8276c65ce28e1b2e (diff) | |
| download | linux-a84297b8711dae583dbb6b127e3e94d6c01f0c29.tar.xz | |
kvm, mm: account shadow page tables to kmemcg
commit d97e5e6160c0e0a23963ec198c7cb1c69e6bf9e8 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 8494dbae41b9..030c6bb240d9 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -891,7 +891,7 @@ 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; |