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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>
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parent
49b26e26e4
commit
842f22ed9b
1 changed files with 5 additions and 5 deletions
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@ -379,15 +379,15 @@ static void mmu_free_memory_cache(struct kvm_mmu_memory_cache *mc,
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static int mmu_topup_memory_cache_page(struct kvm_mmu_memory_cache *cache,
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static int mmu_topup_memory_cache_page(struct kvm_mmu_memory_cache *cache,
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int min)
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int min)
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{
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{
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struct page *page;
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void *page;
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if (cache->nobjs >= min)
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if (cache->nobjs >= min)
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return 0;
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return 0;
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while (cache->nobjs < ARRAY_SIZE(cache->objects)) {
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while (cache->nobjs < ARRAY_SIZE(cache->objects)) {
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page = alloc_page(GFP_KERNEL);
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page = (void *)__get_free_page(GFP_KERNEL);
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if (!page)
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if (!page)
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return -ENOMEM;
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return -ENOMEM;
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cache->objects[cache->nobjs++] = page_address(page);
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cache->objects[cache->nobjs++] = page;
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}
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}
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return 0;
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return 0;
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}
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}
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@ -1032,9 +1032,9 @@ static void kvm_mmu_free_page(struct kvm *kvm, struct kvm_mmu_page *sp)
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ASSERT(is_empty_shadow_page(sp->spt));
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ASSERT(is_empty_shadow_page(sp->spt));
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hlist_del(&sp->hash_link);
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hlist_del(&sp->hash_link);
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list_del(&sp->link);
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list_del(&sp->link);
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__free_page(virt_to_page(sp->spt));
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free_page((unsigned long)sp->spt);
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if (!sp->role.direct)
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if (!sp->role.direct)
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__free_page(virt_to_page(sp->gfns));
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free_page((unsigned long)sp->gfns);
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kmem_cache_free(mmu_page_header_cache, sp);
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kmem_cache_free(mmu_page_header_cache, sp);
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kvm_mod_used_mmu_pages(kvm, -1);
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kvm_mod_used_mmu_pages(kvm, -1);
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}
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}
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