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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2009-12-23 17:35:18 +0100 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-03-01 16:35:44 +0100 |
| commit | f7784b8ec9b6a041fa828cfbe9012fe51933f5ac (patch) | |
| tree | dc67f35e585bb06492852c01776aea4b737db48b /virt/kvm | |
| parent | KVM: modify alias layout in x86s struct kvm_arch (diff) | |
| download | linux-f7784b8ec9b6a041fa828cfbe9012fe51933f5ac.tar.xz linux-f7784b8ec9b6a041fa828cfbe9012fe51933f5ac.zip | |
KVM: split kvm_arch_set_memory_region into prepare and commit
Required for SRCU convertion later.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt/kvm')
| -rw-r--r-- | virt/kvm/kvm_main.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 86dd8f3d29c9..c9f6cfe83120 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -663,6 +663,10 @@ skip_lpage: if (!npages) kvm_arch_flush_shadow(kvm); + r = kvm_arch_prepare_memory_region(kvm, &new, old, mem, user_alloc); + if (r) + goto out_free; + spin_lock(&kvm->mmu_lock); if (mem->slot >= kvm->memslots->nmemslots) kvm->memslots->nmemslots = mem->slot + 1; @@ -670,13 +674,7 @@ skip_lpage: *memslot = new; spin_unlock(&kvm->mmu_lock); - r = kvm_arch_set_memory_region(kvm, mem, old, user_alloc); - if (r) { - spin_lock(&kvm->mmu_lock); - *memslot = old; - spin_unlock(&kvm->mmu_lock); - goto out_free; - } + kvm_arch_commit_memory_region(kvm, mem, old, user_alloc); kvm_free_physmem_slot(&old, npages ? &new : NULL); /* Slot deletion case: we have to update the current slot */ |