[PATCH 2/8] kernel: unmask SIGSTOP for IO threads

Jens Axboe
2021-03-26T00:41:49Z

With IO threads accepting signals, including SIGSTOP, unmask the
SIGSTOP signal from the default blocked mask.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
kernel/fork.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index d3171e8e88e5..d5a40552910f 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2435,7 +2435,7 @@ struct task_struct *create_io_thread(int (*fn)(void *), void *arg, int node)
tsk = copy_process(NULL, 0, node, &args);
if (!IS_ERR(tsk)) {
sigfillset(&tsk->blocked);
- sigdelsetmask(&tsk->blocked, sigmask(SIGKILL));
+ sigdelsetmask(&tsk->blocked, sigmask(SIGKILL)|sigmask(SIGSTOP));
}
return tsk;
}
--
2.31.0