> diff -ur rhel-5.2/kernel/fork.c x/kernel/fork.c
> --- rhel-5.2/kernel/fork.c 2008-07-10 17:26:43.000000000 +0200
> +++ x/kernel/fork.c 2008-12-18 15:57:31.000000000 +0100
> @@ -368,7 +368,7 @@
> rb_parent = &tmp->vm_rb;
>
> mm->map_count++;
> - retval = copy_page_range(mm, oldmm, mpnt);
> + retval = copy_page_range(mm, oldmm, tmp);
>
Could you explain a bit why this change is needed?
Seems this is a revert of the following commit:
commit 0b0db14c536debd92328819fe6c51a49717e8440
Author: Hugh Dickins <hugh@xxxxxxxxxxx>
Date: Mon Nov 21 21:32:20 2005 -0800
[PATCH] unpaged: copy_page_range vma
For copy_one_pte's print_bad_pte to show the task correctly (instead of
"???"), dup_mmap must pass down parent vma rather than child vma.
Signed-off-by: Hugh Dickins <hugh@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxx>
diff --git a/kernel/fork.c b/kernel/fork.c
index e0d0b77..1c1cf8d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -263,7 +263,7 @@ static inline int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
rb_parent = &tmp->vm_rb;
mm->map_count++;
- retval = copy_page_range(mm, oldmm, tmp);
+ retval = copy_page_range(mm, oldmm, mpnt);
if (tmp->vm_ops && tmp->vm_ops->open)
tmp->vm_ops->open(tmp);
> if (tmp->vm_ops && tmp->vm_ops->open)
> tmp->vm_ops->open(tmp);
--
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