]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commitdiff
KVM: Use kmalloc() instead of vmalloc() for KVM_[GS]ET_MSR
authorAvi Kivity <avi@redhat.com>
Thu, 22 Jul 2010 20:24:52 +0000 (23:24 +0300)
committerAvi Kivity <avi@redhat.com>
Fri, 23 Jul 2010 06:07:14 +0000 (09:07 +0300)
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>
arch/x86/kvm/x86.c

index 05d571f6f19615cab8a90dec413e0a39537e914a..7fa89c39c64f67df0a62804cfa242ae6a2d6f638 100644 (file)
@@ -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;
 }