[PATCH] mm: copy_pte_range progress fix

[karo-tx-linux.git] / mm / mmap.c

diff --git a/mm/mmap.c b/mm/mmap.c
index 12334aecf8ad3d74b62f93da8db6f529e981d51d..fa11d91242e8ca4b0d25135b801a0cbc7855dd8c 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1640,7 +1640,7 @@ static void unmap_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
 /*
  * Get rid of page table information in the indicated region.
  *
- * Called with the page table lock held.
+ * Called with the mm semaphore held.
  */
 static void unmap_region(struct mm_struct *mm,
                struct vm_area_struct *vma, struct vm_area_struct *prev,
@@ -1993,6 +1993,9 @@ int insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma)
        __vma = find_vma_prepare(mm,vma->vm_start,&prev,&rb_link,&rb_parent);
        if (__vma && __vma->vm_start < vma->vm_end)
                return -ENOMEM;
+       if ((vma->vm_flags & VM_ACCOUNT) &&
+            security_vm_enough_memory(vma_pages(vma)))
+               return -ENOMEM;
        vma_link(mm, vma, prev, rb_link, rb_parent);
        return 0;
 }