tree cf29b50e076ba1ddc07d5b1292f243653a2f67a9
parent 6c3f6041172b78d5532c6bf3680d304e92ec2e66
author Huang Ying <ying.huang@intel.com> 1277187791 +0800
committer Avi Kivity <avi@redhat.com> 1280648831 +0300

KVM: Fix a race condition for usage of is_hwpoison_address()

is_hwpoison_address accesses the page table, so the caller must hold
current->mm->mmap_sem in read mode. So fix its usage in hva_to_pfn of
kvm accordingly.

Comment is_hwpoison_address to remind other users.

Reported-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>