KVM: Use kmalloc() instead of vmalloc() for KVM_[GS]ET_MSR

We don't need more than a page, and vmalloc() is slower (much
slower recently due to a regression).

Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 05d571f6f196..7fa89c39c64f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1562,7 +1562,7 @@ static int msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs __user *user_msrs,
 
         r = -ENOMEM;
         size = sizeof(struct kvm_msr_entry) * msrs.nmsrs;
-        entries = vmalloc(size);
+        entries = kmalloc(size, GFP_KERNEL);
         if (!entries)
                 goto out;
 
@@ -1581,7 +1581,7 @@ static int msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs __user *user_msrs,
         r = n;
 
 out_free:
-        vfree(entries);
+        kfree(entries);
 out:
         return r;
 }