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Subject[PATCH] KVM: Use consistent type for return value of kvm_mmu_memory_cache_nr_free_objects()
Date
The return value type of the function rmap_can_add() is "bool", and it will
returns the result of the function kvm_mmu_memory_cache_nr_free_objects().
So we should change the return value type of
kvm_mmu_memory_cache_nr_free_objects() to "bool".

Signed-off-by: Bo Liu <liubo03@inspur.com>
---
include/linux/kvm_host.h | 2 +-
virt/kvm/kvm_main.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index c20f2d55840c..a399a7485795 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1358,7 +1358,7 @@ void kvm_flush_remote_tlbs(struct kvm *kvm);

#ifdef KVM_ARCH_NR_OBJS_PER_MEMORY_CACHE
int kvm_mmu_topup_memory_cache(struct kvm_mmu_memory_cache *mc, int min);
-int kvm_mmu_memory_cache_nr_free_objects(struct kvm_mmu_memory_cache *mc);
+bool kvm_mmu_memory_cache_nr_free_objects(struct kvm_mmu_memory_cache *mc);
void kvm_mmu_free_memory_cache(struct kvm_mmu_memory_cache *mc);
void *kvm_mmu_memory_cache_alloc(struct kvm_mmu_memory_cache *mc);
#endif
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index a67e996cbf7f..2872569e3580 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -394,9 +394,9 @@ int kvm_mmu_topup_memory_cache(struct kvm_mmu_memory_cache *mc, int min)
return 0;
}

-int kvm_mmu_memory_cache_nr_free_objects(struct kvm_mmu_memory_cache *mc)
+bool kvm_mmu_memory_cache_nr_free_objects(struct kvm_mmu_memory_cache *mc)
{
- return mc->nobjs;
+ return !!mc->nobjs;
}

void kvm_mmu_free_memory_cache(struct kvm_mmu_memory_cache *mc)
--
2.27.0
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