Commit 610b8188 authored by Eric W. Biederman's avatar Eric W. Biederman

exec: Remove BUG_ON(has_group_leader_pid)

With the introduction of exchange_tids thread_group_leader and
has_group_leader_pid have become equivalent.  Further at this point in the
code a thread group has exactly two threads, the previous thread_group_leader
that is waiting to be reaped and tsk.  So we know it is impossible for tsk to
be the thread_group_leader.

This is also the last user of has_group_leader_pid so removing this check
will allow has_group_leader_pid to be removed.

So remove the "BUG_ON(has_group_leader_pid)" that will never fire.
Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
parent c7f51940
...@@ -1176,7 +1176,6 @@ static int de_thread(struct task_struct *tsk) ...@@ -1176,7 +1176,6 @@ static int de_thread(struct task_struct *tsk)
tsk->start_boottime = leader->start_boottime; tsk->start_boottime = leader->start_boottime;
BUG_ON(!same_thread_group(leader, tsk)); BUG_ON(!same_thread_group(leader, tsk));
BUG_ON(has_group_leader_pid(tsk));
/* /*
* An exec() starts a new thread group with the * An exec() starts a new thread group with the
* TGID of the previous thread group. Rehash the * TGID of the previous thread group. Rehash the
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment