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authorchai wen <chaiw.fnst@cn.fujitsu.com>2013-10-14 22:22:33 +0800
committerGleb Natapov <gleb@redhat.com>2013-10-15 13:43:37 +0300
commitf2e106692d5189303997ad7b96de8d8123aa5613 (patch)
treebe15cad31bc5701570a571b3be04e299bb4ac547 /include/linux/kvm_host.h
parenta7efdf6bec34f1a693a926ebd08de6ba6e700dff (diff)
KVM: Drop FOLL_GET in GUP when doing async page fault
Page pinning is not mandatory in kvm async page fault processing since after async page fault event is delivered to a guest it accesses page once again and does its own GUP. Drop the FOLL_GET flag in GUP in async_pf code, and do some simplifying in check/clear processing. Suggested-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Gu zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: chai wen <chaiw.fnst@cn.fujitsu.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'include/linux/kvm_host.h')
-rw-r--r--include/linux/kvm_host.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index f6dccde755f6..c9d4236ab442 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -189,7 +189,7 @@ struct kvm_async_pf {
gva_t gva;
unsigned long addr;
struct kvm_arch_async_pf arch;
- struct page *page;
+ bool wakeup_all;
};
void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu);