[PATCH 5/9] kvm: use get_page instead of get_page_unless_zero

[Michel Lespinasse]

In transparent_hugepage_adjust(), we can use get_page instead of
get_page_unless_zero and an assertion that the count was not zero.

Signed-off-by: Michel Lespinasse <walken@xxxxxxxxxx>
---
 arch/x86/kvm/mmu.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index aee3862..d9b7f0c 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2353,8 +2353,7 @@ static void transparent_hugepage_adjust(struct kvm_vcpu *vcpu,
 			*gfnp = gfn;
 			kvm_release_pfn_clean(pfn);
 			pfn &= ~mask;
-			if (!get_page_unless_zero(pfn_to_page(pfn)))
-				BUG();
+			get_page(pfn_to_page(pfn));
 			*pfnp = pfn;
 		}
 	}
-- 
1.7.3.1

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