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[PATCH] eligible_child: remove an obsolete ->tgid check

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It is not possible to find a sub-thread in ->children/->ptrace_children
lists, ptrace_attach() does not allow to attach to sub-threads.

Even if it was possible to ptrace the task from the same thread group,
we can't allow to release ->group_leader while there are others (ptracer)
threads in the same group.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Oleg Nesterov 2006-09-02 21:22:16 +04:00 committed by Linus Torvalds
parent d738752fc4
commit 3b6362b833
1 changed files with 1 additions and 1 deletions
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2
kernel/exit.c
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@ -1053,7 +1053,7 @@ static int eligible_child(pid_t pid, int options, struct task_struct *p)
* Do not consider thread group leaders that are * Do not consider thread group leaders that are
* in a non-empty thread group: * in a non-empty thread group:
*/ */
if (current->tgid != p->tgid && delay_group_leader(p)) if (delay_group_leader(p))
return 2; return 2;
if (security_task_wait(p)) if (security_task_wait(p))