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KVM: rename x86 kvm->arch.n_alloc_mmu_pages

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arch.n_alloc_mmu_pages is a poor choice of name. This value truly
means, "the number of pages which _may_ be allocated".  But,
reading the name, "n_alloc_mmu_pages" implies "the number of allocated
mmu pages", which is dead wrong.

It's really the high watermark, so let's give it a name to match:
nr_max_mmu_pages.  This change will make the next few patches
much more obvious and easy to read.

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Tim Pepper <lnxninja@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Dave Hansen
2010-08-19 18:11:14 -07:00
committed by Avi Kivity
parent e0df7b9f6c
commit 39de71ec53
3 changed files with 6 additions and 6 deletions
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8
arch/x86/kvm/mmu.c
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@@ -1696,7 +1696,7 @@ void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages)
int used_pages;
LIST_HEAD(invalid_list);
used_pages = kvm->arch.n_alloc_mmu_pages - kvm_mmu_available_pages(kvm);
used_pages = kvm->arch.n_max_mmu_pages - kvm_mmu_available_pages(kvm);
used_pages = max(0, used_pages);
/*
@@ -1721,9 +1721,9 @@ void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages)
}
else
kvm->arch.n_free_mmu_pages += kvm_nr_mmu_pages
- kvm->arch.n_alloc_mmu_pages;
- kvm->arch.n_max_mmu_pages;
kvm->arch.n_alloc_mmu_pages = kvm_nr_mmu_pages;
kvm->arch.n_max_mmu_pages = kvm_nr_mmu_pages;
}
static int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn)
@@ -3141,7 +3141,7 @@ static int mmu_shrink(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask)
idx = srcu_read_lock(&kvm->srcu);
spin_lock(&kvm->mmu_lock);
npages = kvm->arch.n_alloc_mmu_pages -
npages = kvm->arch.n_max_mmu_pages -
kvm_mmu_available_pages(kvm);
cache_count += npages;
if (!kvm_freed && nr_to_scan > 0 && npages > 0) {