Waiman Long
3553ae5690
x86/kvm: Don't use pvqspinlock code if only 1 vCPU
...
On a VM with only 1 vCPU, the locking fast path will always be
successful. In this case, there is no need to use the the PV qspinlock
code which has higher overhead on the unlock side than the native
qspinlock code.
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-06 17:59:04 +02:00
..
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