[PATCH 5/9] kvm: use get_page instead of get_page_unless_zero
From: Michel Lespinasse <hidden>
Date: 2011-08-19 07:49:33
Also in:
lkml
Subsystem:
kernel virtual machine for x86 (kvm/x86), the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Sean Christopherson, Paolo Bonzini, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
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 <redacted> --- 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
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>