The patch titled
Subject: kvm, mm: account shadow page tables to kmemcg
has been added to the -mm tree. Its filename is
kvm-mm-account-shadow-page-tables-to-kmemcg.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kvm-mm-account-shadow-page-tables-to-kmemcg.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kvm-mm-account-shadow-page-tables-to-kmemcg.patch
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------------------------------------------------------
From: Shakeel Butt <shakeelb@xxxxxxxxxx>
Subject: kvm, mm: account shadow page tables to kmemcg
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.
Link: http://lkml.kernel.org/r/20180627181349.149778-1-shakeelb@xxxxxxxxxx
Signed-off-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: Greg Thelen <gthelen@xxxxxxxxxx>
Cc: Radim Krčmář <rkrcmar@xxxxxxxxxx>
Cc: Peter Feiner <pfeiner@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
diff -puN arch/x86/kvm/mmu.c~kvm-mm-account-shadow-page-tables-to-kmemcg arch/x86/kvm/mmu.c
--- a/arch/x86/kvm/mmu.c~kvm-mm-account-shadow-page-tables-to-kmemcg
+++ a/arch/x86/kvm/mmu.c
@@ -890,7 +890,7 @@ static int mmu_topup_memory_cache_page(s
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;
_
Patches currently in -mm which might be from shakeelb@xxxxxxxxxx are
slub-track-number-of-slabs-irrespective-of-config_slub_debug.patch
fs-fsnotify-account-fsnotify-metadata-to-kmemcg.patch
fs-mm-account-buffer_head-to-kmemcg.patch
kvm-mm-account-shadow-page-tables-to-kmemcg.patch
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