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ptrace: wait_consider_task: s/same_thread_group/ptrace_reparented/

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wait_consider_task() checks same_thread_group(parent, real_parent),
this is the open-coded ptrace_reparented().

__ptrace_detach() remains the only function which has to check this by
hand, although we could reorganize the code to delay __ptrace_unlink.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Oleg Nesterov 2011-06-24 17:34:39 +02:00
parent bb3696da89
commit 479bf98c1c
1 changed files with 1 additions and 2 deletions
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3
kernel/exit.c
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@ -1599,8 +1599,7 @@ static int wait_consider_task(struct wait_opts *wo, int ptrace,
* own children, it should create a separate process which
* takes the role of real parent.
*/
if (likely(!ptrace) && p->ptrace &&
same_thread_group(p->parent, p->real_parent))
if (likely(!ptrace) && p->ptrace && !ptrace_reparented(p))
return 0;
/*