Revert "signal: don't allow STOP on PF_IO_WORKER threads"

This reverts commit 4db4b1a0d1779dc159f7b87feb97030ec0b12597.

The IO threads allow and handle SIGSTOP now, so don't special case them
anymore in task_set_jobctl_pending().

Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/kernel/signal.c b/kernel/signal.c
index dd86841cce9487b03b7b254419fcef9ef811d391..f2718350bf4b529668960e82a0dac774429e619d 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -288,8 +288,7 @@ bool task_set_jobctl_pending(struct task_struct *task, unsigned long mask)
                        JOBCTL_STOP_SIGMASK | JOBCTL_TRAPPING));
        BUG_ON((mask & JOBCTL_TRAPPING) && !(mask & JOBCTL_PENDING_MASK));
 
-       if (unlikely(fatal_signal_pending(task) ||
-                    (task->flags & (PF_EXITING | PF_IO_WORKER))))
+       if (unlikely(fatal_signal_pending(task) || (task->flags & PF_EXITING)))
                return false;
 
        if (mask & JOBCTL_STOP_SIGMASK)