KVM: hyperv: idr_find needs RCU protection

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Even though the eventfd is released after the KVM SRCU grace period
elapses, the conn_to_evt data structure itself is not; it uses RCU
internally, instead.  Fix the read-side critical section to happen
under rcu_read_lock/unlock; the result is still protected by
vcpu->kvm->srcu.

Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Paolo Bonzini 2018-05-07 19:24:34 +02:00

parent 6356ee0c96

commit 452a68d0ef

1 changed files with 3 additions and 1 deletions

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arch/x86/kvm/hyperv.c

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