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KVM: PPC: Allocate vcpu struct using vmalloc

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We used to use get_free_pages to allocate our vcpu struct. Unfortunately
that call failed on me several times after my machine had a big enough
uptime, as memory became too fragmented by then.

Fortunately, we don't need it to be page aligned any more! We can just
vmalloc it and everything's great.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Alexander Graf 2010-02-19 12:24:33 +01:00 committed by Avi Kivity
parent 964b6411af
commit 032c340731
1 changed files with 3 additions and 4 deletions
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7
arch/powerpc/kvm/book3s.c
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@ -1112,8 +1112,7 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
struct kvm_vcpu *vcpu; struct kvm_vcpu *vcpu;
int err; int err;
vcpu_book3s = (struct kvmppc_vcpu_book3s *)__get_free_pages( GFP_KERNEL | __GFP_ZERO, vcpu_book3s = vmalloc(sizeof(struct kvmppc_vcpu_book3s));
get_order(sizeof(struct kvmppc_vcpu_book3s)));
if (!vcpu_book3s) { if (!vcpu_book3s) {
err = -ENOMEM; err = -ENOMEM;
goto out; goto out;
@ -1151,7 +1150,7 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
return vcpu; return vcpu;
free_vcpu: free_vcpu:
free_pages((long)vcpu_book3s, get_order(sizeof(struct kvmppc_vcpu_book3s))); vfree(vcpu_book3s);
out: out:
return ERR_PTR(err); return ERR_PTR(err);
} }
@ -1162,7 +1161,7 @@ void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
__destroy_context(vcpu_book3s->context_id); __destroy_context(vcpu_book3s->context_id);
kvm_vcpu_uninit(vcpu); kvm_vcpu_uninit(vcpu);
free_pages((long)vcpu_book3s, get_order(sizeof(struct kvmppc_vcpu_book3s))); vfree(vcpu_book3s);
} }
extern int __kvmppc_vcpu_entry(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); extern int __kvmppc_vcpu_entry(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);