mm: make vm_area_dup() actually copy the old vma data

[linux-2.6-microblaze.git] / mm / mmap.c

diff --git a/mm/mmap.c b/mm/mmap.c
index 4286ad2..b0ed8ce 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2624,11 +2624,6 @@ int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
        if (!new)
                return -ENOMEM;
 
-       /* most fields are the same, copy all, and then fixup */
-       *new = *vma;
-
-       INIT_LIST_HEAD(&new->anon_vma_chain);
-
        if (new_below)
                new->vm_end = addr;
        else {
@@ -3205,13 +3200,11 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
                new_vma = vm_area_dup(vma);
                if (!new_vma)
                        goto out;
-               *new_vma = *vma;
                new_vma->vm_start = addr;
                new_vma->vm_end = addr + len;
                new_vma->vm_pgoff = pgoff;
                if (vma_dup_policy(vma, new_vma))
                        goto out_free_vma;
-               INIT_LIST_HEAD(&new_vma->anon_vma_chain);
                if (anon_vma_clone(new_vma, vma))
                        goto out_free_mempol;
                if (new_vma->vm_file)