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authorHillf Danton <dhillf@gmail.com>2010-09-18 08:41:02 +0800
committerAvi Kivity <avi@redhat.com>2010-10-24 10:52:59 +0200
commitcb16a7b3872e9a806f16b1f09b59103fafc7b796 (patch)
tree255ee31572d138a2d1a54281881483654f02bf56 /arch
parenta182d8737f0bdfb684b3255c8e266e71999e2225 (diff)
downloadlinux-cb16a7b3872e9a806f16b1f09b59103fafc7b796.tar.bz2
KVM: MMU: fix counting of rmap entries in rmap_add()
It seems that rmap entries are under counted. Signed-off-by: Hillf Danton <dhillf@gmail.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/mmu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 3ce56bfe056e..c94c43289f53 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -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;