Messages in this thread | | | Subject | Re: [PATCH v3 10/11] KVM: MMU: clear write-flooding on the fast path of tracked page | From | Xiao Guangrong <> | Date | Tue, 23 Feb 2016 12:36:25 +0800 |
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On 02/19/2016 07:55 PM, Paolo Bonzini wrote: > > > On 14/02/2016 12:31, Xiao Guangrong wrote: >> If the page fault is caused by write access on write tracked page, the >> real shadow page walking is skipped, we lost the chance to clear write >> flooding for the page structure current vcpu is using >> >> Fix it by locklessly waking shadow page table to clear write flooding >> on the shadow page structure out of mmu-lock. So that we change the >> count to atomic_t > > Should this be moved earlier in the series, so that the issue never > surfaces?
Okay, i will move it to the place that is behind: [PATCH v3 06/11] KVM: MMU: let page fault handler be aware tracked page
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