coredump: Stop setting signal->group_exit_task

Currently the coredump code sets group_exit_task so that
signal_group_exit() will return true during a coredump.  Now that the
coredump code always sets SIGNAL_GROUP_EXIT there is no longer a need
to set signal->group_exit_task.

Link: https://lkml.kernel.org/r/20211213225350.27481-6-ebiederm@xmission.com
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

diff --git a/fs/coredump.c b/fs/coredump.c
index fee1c57..c92ffc0 100644 (file)
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -377,7 +377,6 @@ static int zap_threads(struct task_struct *tsk,
        spin_lock_irq(&tsk->sighand->siglock);
        if (!signal_group_exit(tsk->signal)) {
                tsk->signal->core_state = core_state;
-               tsk->signal->group_exit_task = tsk;
                nr = zap_process(tsk, exit_code);
                clear_tsk_thread_flag(tsk, TIF_SIGPENDING);
                tsk->flags |= PF_DUMPCORE;
@@ -426,7 +425,6 @@ static void coredump_finish(bool core_dumped)
        spin_lock_irq(&current->sighand->siglock);
        if (core_dumped && !__fatal_signal_pending(current))
                current->signal->group_exit_code |= 0x80;
-       current->signal->group_exit_task = NULL;
        next = current->signal->core_state->dumper.next;
        current->signal->core_state = NULL;
        spin_unlock_irq(&current->sighand->siglock);