[kvm-commits] [PATCH] KVM: use get_task_mm() instead of atomic_inc the mm_count

[Avi Kivity]

From: Izik Eidus <[EMAIL PROTECTED]>

Signed-off-by: Izik Eidus <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 30bf832..a96a44f 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -186,8 +186,7 @@ static struct kvm *kvm_create_vm(void)
        if (IS_ERR(kvm))
                goto out;
 
-       kvm->mm = current->mm;
-       atomic_inc(&kvm->mm->mm_count);
+       kvm->mm = get_task_mm(current);
        spin_lock_init(&kvm->mmu_lock);
        kvm_io_bus_init(&kvm->pio_bus);
        mutex_init(&kvm->lock);
@@ -239,7 +238,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
        kvm_io_bus_destroy(&kvm->pio_bus);
        kvm_io_bus_destroy(&kvm->mmio_bus);
        kvm_arch_destroy_vm(kvm);
-       mmdrop(mm);
+       mmput(mm);
 }
 
 static int kvm_vm_release(struct inode *inode, struct file *filp)

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