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authorMarcelo Tosatti <mtosatti@redhat.com>2009-12-23 14:35:18 -0200
committerMarcelo Tosatti <mtosatti@redhat.com>2010-03-01 12:35:44 -0300
commitf7784b8ec9b6a041fa828cfbe9012fe51933f5ac (patch)
treedc67f35e585bb06492852c01776aea4b737db48b /virt
parentKVM: modify alias layout in x86s struct kvm_arch (diff)
downloadlinux-dev-f7784b8ec9b6a041fa828cfbe9012fe51933f5ac.tar.xz
linux-dev-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')
-rw-r--r--virt/kvm/kvm_main.c12
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 */