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KVM: MMU: fix counting of rmap entries in rmap_add()

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It seems that rmap entries are under counted.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Hillf Danton 2010-09-18 08:41:02 +08:00 committed by Avi Kivity
parent a182d8737f
commit cb16a7b387
1 changed files with 2 additions and 1 deletions
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3
arch/x86/kvm/mmu.c
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@ -632,6 +632,7 @@ static int rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn)
desc->sptes[0] = (u64 *)*rmapp;
desc->sptes[1] = spte;
*rmapp = (unsigned long)desc | 1;
++count;
} else {
rmap_printk("rmap_add: %p %llx many->many\n", spte, *spte);
desc = (struct kvm_rmap_desc *)(*rmapp & ~1ul);
@ -644,7 +645,7 @@ static int rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn)
desc = desc->more;
}
for (i = 0; desc->sptes[i]; ++i)
;
++count;
desc->sptes[i] = spte;
}
return count;