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KVM: Stop checking rmap to see if slot is being created

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Instead, check npages consistently.  This helps to make rmap
architecture specific in a later patch.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Takuya Yoshikawa 2012-08-01 18:01:10 +09:00 committed by Avi Kivity
parent fe56097b23
commit aab2eb7a38
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kvm/x86.c
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@ -6385,7 +6385,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
*x86 needs to handle !user_alloc case.
*/
if (!user_alloc) {
if (npages && !old.rmap) {
if (npages && !old.npages) {
unsigned long userspace_addr;
userspace_addr = vm_mmap(NULL, 0,
@ -6413,7 +6413,7 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
int nr_mmu_pages = 0, npages = mem->memory_size >> PAGE_SHIFT;
if (!user_alloc && !old.user_alloc && old.rmap && !npages) {
if (!user_alloc && !old.user_alloc && old.npages && !npages) {
int ret;
ret = vm_munmap(old.userspace_addr,