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KVM: MMU: cleanup page alloc and free 

Using __get_free_page instead of alloc_page and page_address,
using free_page instead of __free_page and virt_to_page

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Xiao Guangrong 2011-03-04 19:01:10 +08:00 committed by Marcelo Tosatti
parent 49b26e26e4
commit 842f22ed9b
1 changed files with 5 additions and 5 deletions
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10
arch/x86/kvm/mmu.c
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@ -379,15 +379,15 @@ static void mmu_free_memory_cache(struct kvm_mmu_memory_cache *mc,
static int mmu_topup_memory_cache_page(struct kvm_mmu_memory_cache *cache,
int min)
{
struct page *page;
void *page;
if (cache->nobjs >= min)
return 0;
while (cache->nobjs < ARRAY_SIZE(cache->objects)) {
page = alloc_page(GFP_KERNEL);
page = (void *)__get_free_page(GFP_KERNEL);
if (!page)
return -ENOMEM;
cache->objects[cache->nobjs++] = page_address(page);
cache->objects[cache->nobjs++] = page;
}
return 0;
}
@ -1032,9 +1032,9 @@ static void kvm_mmu_free_page(struct kvm *kvm, struct kvm_mmu_page *sp)
ASSERT(is_empty_shadow_page(sp->spt));
hlist_del(&sp->hash_link);
list_del(&sp->link);
__free_page(virt_to_page(sp->spt));
free_page((unsigned long)sp->spt);
if (!sp->role.direct)
__free_page(virt_to_page(sp->gfns));
free_page((unsigned long)sp->gfns);
kmem_cache_free(mmu_page_header_cache, sp);
kvm_mod_used_mmu_pages(kvm, -1);
}