diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2020-04-26 07:51:03 -0500 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2020-04-28 16:50:07 -0500 |
| commit | 610b818856e1477964b59040c740f6ec55883045 (patch) | |
| tree | 5644e1fc6d8283d457ff7facf5c71aa16d9bbfe8 | |
| parent | c7f5194054e103d18d267385b866b5b90511a425 (diff) | |
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: "Eric W. Biederman" <ebiederm@xmission.com>
| -rw-r--r-- | fs/exec.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/exec.c b/fs/exec.c index 9b60f927afd7..6ab1c19d84fa 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1176,7 +1176,6 @@ static int de_thread(struct task_struct *tsk) tsk->start_boottime = leader->start_boottime; BUG_ON(!same_thread_group(leader, tsk)); - BUG_ON(has_group_leader_pid(tsk)); /* * An exec() starts a new thread group with the * TGID of the previous thread group. Rehash the |