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authorOleg Nesterov <oleg@redhat.com>2009-06-17 16:27:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-18 13:03:49 -0700
commitdea33cfd99022d82d923a0c6a3bd895fb6683fb2 (patch)
tree889ea712abbbb8b8c220dd593383ec6f9ad15ffc
parent48597760fad3d6a3e30a14241a3ce5ccb1a0e9bc (diff)
ptrace: mm_need_new_owner: use ->real_parent to search in the siblings
"Search in the siblings" should use ->real_parent, not ->parent. If the task is traced then ->parent == tracer, while the task's parent is always ->real_parent. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--kernel/exit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 533e5f85669..213f906f5e1 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -590,7 +590,7 @@ retry:
/*
* Search in the siblings
*/
- list_for_each_entry(c, &p->parent->children, sibling) {
+ list_for_each_entry(c, &p->real_parent->children, sibling) {
if (c->mm == mm)
goto assign_new_owner;
}