Takuya Yoshikawa b3ae209697 KVM: Introduce kvm_unmap_hva_range() for kvm_mmu_notifier_invalidate_range_start() ... When we tested KVM under memory pressure, with THP enabled on the host, we noticed that MMU notifier took a long time to invalidate huge pages. Since the invalidation was done with mmu_lock held, it not only wasted the CPU but also made the host harder to respond. This patch mitigates this by using kvm_handle_hva_range(). Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Cc: Alexander Graf <agraf@suse.de> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>		2012-07-18 16:55:04 -03:00
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asm	KVM: Introduce kvm_unmap_hva_range() for kvm_mmu_notifier_invalidate_range_start()	2012-07-18 16:55:04 -03:00