[PATCH 7/7] Revert "signal: don't allow STOP on PF_IO_WORKER threads"

Jens Axboe
2021-03-26T15:53:15Z

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>
---
kernel/signal.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/signal.c b/kernel/signal.c
index 76d85830d4fa..5b75fbe3d2d6 100644
--- 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)
--
2.31.0