[PATCH 3/8] Revert "signal: don't allow sending any signals to PF_IO_WORKER threads"

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

This reverts commit 5be28c8f85ce99ed2d329d2ad8bdd18ea19473a5.

IO threads now take signals just fine, so there's no reason to limit them
specifically. Revert the change that prevented that from happening.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
kernel/signal.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/kernel/signal.c b/kernel/signal.c
index f2a1b898da29..cb9acdfb32fa 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -834,9 +834,6 @@ static int check_kill_permission(int sig, struct kernel_siginfo *info,

if (!valid_signal(sig))
return -EINVAL;
- /* PF_IO_WORKER threads don't take any signals */
- if (t->flags & PF_IO_WORKER)
- return -ESRCH;

if (!si_fromuser(info))
return 0;
--
2.31.0