This is incremented by a maximum of 4 for every vcpu, so we are far from
overflow. 16 bits improve struct packing.
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index cdaaedc..f38007d 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -192,7 +192,7 @@ struct kvm_mmu_page {
*/
gfn_t gfn;
union kvm_mmu_page_role role;
- int root_count; /* Currently serving as active root */
+ short root_count; /* Currently serving as active root */
bool multimapped; /* More than one parent_pte? */
bool unsync;
union {
--
1.7.0.4
--
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