diff options
author | Paul Mackerras <paulus@samba.org> | 2008-06-30 10:16:50 +1000 |
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committer | Paul Mackerras <paulus@samba.org> | 2008-06-30 10:16:50 +1000 |
commit | e9a4b6a3f6592862a67837e80aad3f50468857a6 (patch) | |
tree | 087420cf91ac922c7e99757c4490a605ec7b10f2 /arch/powerpc/kvm/44x_tlb.c | |
parent | 441dbb500b4344a8e3125e5aabab4f9dbf72514f (diff) | |
parent | 1702b52092e9a6d05398d3f9581ddc050ef00d06 (diff) |
Merge branch 'linux-2.6'
Diffstat (limited to 'arch/powerpc/kvm/44x_tlb.c')
-rw-r--r-- | arch/powerpc/kvm/44x_tlb.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c index f5d7a5eab96..75dff7cfa81 100644 --- a/arch/powerpc/kvm/44x_tlb.c +++ b/arch/powerpc/kvm/44x_tlb.c @@ -116,8 +116,6 @@ static void kvmppc_44x_shadow_release(struct kvm_vcpu *vcpu, struct tlbe *stlbe = &vcpu->arch.shadow_tlb[index]; struct page *page = vcpu->arch.shadow_pages[index]; - kunmap(vcpu->arch.shadow_pages[index]); - if (get_tlb_v(stlbe)) { if (kvmppc_44x_tlbe_is_writable(stlbe)) kvm_release_page_dirty(page); @@ -144,18 +142,19 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn, u64 asid, stlbe = &vcpu->arch.shadow_tlb[victim]; /* Get reference to new page. */ - down_write(¤t->mm->mmap_sem); + down_read(¤t->mm->mmap_sem); new_page = gfn_to_page(vcpu->kvm, gfn); if (is_error_page(new_page)) { - printk(KERN_ERR "Couldn't get guest page!\n"); + printk(KERN_ERR "Couldn't get guest page for gfn %lx!\n", gfn); kvm_release_page_clean(new_page); + up_read(¤t->mm->mmap_sem); return; } hpaddr = page_to_phys(new_page); /* Drop reference to old page. */ kvmppc_44x_shadow_release(vcpu, victim); - up_write(¤t->mm->mmap_sem); + up_read(¤t->mm->mmap_sem); vcpu->arch.shadow_pages[victim] = new_page; |