Merge with 2.4.0-test11.

1 files changed, 10 insertions, 4 deletions

diff --git a/mm/mprotect.c b/mm/mprotect.c
index 7b61abb3e..64c178b31 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -118,11 +118,13 @@ static inline int mprotect_fixup_start(struct vm_area_struct * vma,
 		get_file(n->vm_file);
 	if (n->vm_ops && n->vm_ops->open)
 		n->vm_ops->open(n);
+	lock_vma_mappings(vma);
 	spin_lock(&vma->vm_mm->page_table_lock);
 	vma->vm_pgoff += (end - vma->vm_start) >> PAGE_SHIFT;
 	vma->vm_start = end;
-	insert_vm_struct(current->mm, n);
+	__insert_vm_struct(current->mm, n);
 	spin_unlock(&vma->vm_mm->page_table_lock);
+	unlock_vma_mappings(vma);
 	return 0;
 }
 
@@ -145,10 +147,12 @@ static inline int mprotect_fixup_end(struct vm_area_struct * vma,
 		get_file(n->vm_file);
 	if (n->vm_ops && n->vm_ops->open)
 		n->vm_ops->open(n);
+	lock_vma_mappings(vma);
 	spin_lock(&vma->vm_mm->page_table_lock);
 	vma->vm_end = start;
-	insert_vm_struct(current->mm, n);
+	__insert_vm_struct(current->mm, n);
 	spin_unlock(&vma->vm_mm->page_table_lock);
+	unlock_vma_mappings(vma);
 	return 0;
 }
 
@@ -179,6 +183,7 @@ static inline int mprotect_fixup_middle(struct vm_area_struct * vma,
 		vma->vm_ops->open(left);
 		vma->vm_ops->open(right);
 	}
+	lock_vma_mappings(vma);
 	spin_lock(&vma->vm_mm->page_table_lock);
 	vma->vm_pgoff += (start - vma->vm_start) >> PAGE_SHIFT;
 	vma->vm_start = start;
@@ -186,9 +191,10 @@ static inline int mprotect_fixup_middle(struct vm_area_struct * vma,
 	vma->vm_flags = newflags;
 	vma->vm_raend = 0;
 	vma->vm_page_prot = prot;
-	insert_vm_struct(current->mm, left);
-	insert_vm_struct(current->mm, right);
+	__insert_vm_struct(current->mm, left);
+	__insert_vm_struct(current->mm, right);
 	spin_unlock(&vma->vm_mm->page_table_lock);
+	unlock_vma_mappings(vma);
 	return 0;
 }