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ptrace: __ptrace_unlink: use the ptrace_reparented() helper

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Currently __ptrace_unlink() checks list_empty(->ptrace_list) to figure out
whether the child was reparented.  Change the code to use ptrace_reparented()
to make this check more explicit and consistent.

No functional changes.

Signed-off-by: Oleg Nesterov <[email protected]>
Acked-by: Roland McGrath <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Oleg Nesterov 2008-04-30 00:53:14 -07:00 • committed by Linus Torvalds
commit 68cb947866
1 changed files with 1 additions and 1 deletions
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2
kernel/ptrace.c
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@ -73,7 +73,7 @@ void __ptrace_unlink(struct task_struct *child)
BUG_ON(!child->ptrace);
child->ptrace = 0;
if (!list_empty(&child->ptrace_list)) {
if (ptrace_reparented(child)) {
list_del_init(&child->ptrace_list);
remove_parent(child);
child->parent = child->real_parent;