Commit 3b6362b8 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Linus Torvalds

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

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: default avatarOleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent d738752f
...@@ -1053,7 +1053,7 @@ static int eligible_child(pid_t pid, int options, struct task_struct *p) ...@@ -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))
......
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