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kvm: don't take vcpu mutex for obviously invalid vcpu ioctls
[pandora-kernel.git]
/
virt
/
kvm
/
async_pf.c
diff --git
a/virt/kvm/async_pf.c
b/virt/kvm/async_pf.c
index
d6a3d09
..
5ff7f7f
100644
(file)
--- a/
virt/kvm/async_pf.c
+++ b/
virt/kvm/async_pf.c
@@
-80,9
+80,7
@@
static void async_pf_execute(struct work_struct *work)
might_sleep();
- down_read(&mm->mmap_sem);
- get_user_pages(NULL, mm, addr, 1, 1, 0, NULL, NULL);
- up_read(&mm->mmap_sem);
+ kvm_get_user_page_io(NULL, mm, addr, 1, NULL);
kvm_async_page_present_sync(vcpu, apf);
spin_lock(&vcpu->async_pf.lock);