KVM: Disallow fork() and similar games when using a VM

We don't want the meaning of guest userspace changing under our feet. Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-11-21 16:41:05 +02:00
parent 76c35c6e99
commit 6d4e4c4fca
3 changed files with 11 additions and 0 deletions
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -393,6 +393,7 @@ void fastcall __mmdrop(struct mm_struct *mm)
 	destroy_context(mm);
 	free_mm(mm);
 }
+EXPORT_SYMBOL_GPL(__mmdrop);

 /*
 * Decrement the use count and release all resources for an mm.