Thread (25 messages) flat view 25 messages, 2 authors, 2020-06-24
STALE2282d

Revision v2 of 3 in this series.

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[PATCH v2 20/21] KVM: MIPS: Account pages used for GPA page tables

From: Sean Christopherson <hidden>
Date: 2020-06-22 20:09:40
Also in: kvm, kvmarm, linux-arch, lkml
Subsystem: kernel virtual machine for mips (kvm/mips), mips, the rest · Maintainers: Huacai Chen, Thomas Bogendoerfer, Linus Torvalds

Use GFP_KERNEL_ACCOUNT instead of GFP_KERNEL when allocating pages for
the the GPA page tables.  The primary motivation for accounting the
allocations is to align with the common KVM memory cache helpers in
preparation for moving to the common implementation in a future patch.
The actual accounting is a bonus side effect.

Signed-off-by: Sean Christopherson <redacted>
---
 arch/mips/kvm/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/kvm/mmu.c b/arch/mips/kvm/mmu.c
index 94562c54b930..41a4a063a730 100644
--- a/arch/mips/kvm/mmu.c
+++ b/arch/mips/kvm/mmu.c
@@ -32,7 +32,7 @@ static int mmu_topup_memory_cache(struct kvm_mmu_memory_cache *cache, int min)
 	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;
-- 
2.26.0
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