[PATCH 29/39] KVM: Allocate guest memory as MAP_PRIVATE, not MAP_SHARED

[Avi Kivity]

From: Avi Kivity <[EMAIL PROTECTED]>

There is no reason to share internal memory slots with fork()ed instances.

Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
 arch/x86/kvm/x86.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index bfc7c33..675d010 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4296,7 +4296,7 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
                        userspace_addr = do_mmap(NULL, 0,
                                                 npages * PAGE_SIZE,
                                                 PROT_READ | PROT_WRITE,
-                                                MAP_SHARED | MAP_ANONYMOUS,
+                                                MAP_PRIVATE | MAP_ANONYMOUS,
                                                 0);
                        up_write(&current->mm->mmap_sem);
 
-- 
1.6.0.1

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