| commit | 13fb59276b47db556370bba53b5b55f3849dd8c9 | [log] [tgz] |
|---|---|---|
| author | Paolo Bonzini <pbonzini@redhat.com> | Wed Nov 13 15:47:06 2019 +0100 |
| committer | Paolo Bonzini <pbonzini@redhat.com> | Wed Nov 13 15:47:06 2019 +0100 |
| tree | efe502b1e3302e2e0930a96830217984e76be3b5 | |
| parent | 8c5bd25bf42effd194d4b0b43895c42b374e620b [diff] |
kvm: x86: disable shattered huge page recovery for PREEMPT_RT. If a huge page is recovered (and becomes no executable) while another thread is executing it, the resulting contention on mmu_lock can cause latency spikes. Disabling recovery for PREEMPT_RT kernels fixes this issue. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>