diff options
| author | Ingo Molnar <mingo@kernel.org> | 2021-04-20 11:13:58 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-04-20 11:13:58 +0300 |
| commit | d0d252b8ca7a636640a7dca8606edf7c3bcfe0b8 (patch) | |
| tree | 992b53f3c91669f3597e05997b61fa09db2155df /kernel/signal.c | |
| parent | 9406415f46f6127fd31bb66f0260f7a61a8d2786 (diff) | |
| parent | bf05bf16c76bb44ab5156223e1e58e26dfe30a88 (diff) | |
| download | linux-d0d252b8ca7a636640a7dca8606edf7c3bcfe0b8.tar.xz | |
Merge tag 'v5.12-rc8' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 2d9463e05ae6..602e9f4efcc6 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -91,7 +91,7 @@ static bool sig_task_ignored(struct task_struct *t, int sig, bool force) return true; /* Only allow kernel generated signals to this kthread */ - if (unlikely((t->flags & (PF_KTHREAD | PF_IO_WORKER)) && + if (unlikely((t->flags & PF_KTHREAD) && (handler == SIG_KTHREAD_KERNEL) && !force)) return true; @@ -1137,7 +1137,7 @@ static int __send_signal(int sig, struct kernel_siginfo *info, struct task_struc /* * Skip useless siginfo allocation for SIGKILL and kernel threads. */ - if ((sig == SIGKILL) || (t->flags & (PF_KTHREAD | PF_IO_WORKER))) + if ((sig == SIGKILL) || (t->flags & PF_KTHREAD)) goto out_set; /* @@ -2805,13 +2805,21 @@ relock: } /* + * PF_IO_WORKER threads will catch and exit on fatal signals + * themselves. They have cleanup that must be performed, so + * we cannot call do_exit() on their behalf. + */ + if (current->flags & PF_IO_WORKER) + goto out; + + /* * Death signals, no core dump. */ do_group_exit(ksig->info.si_signo); /* NOTREACHED */ } spin_unlock_irq(&sighand->siglock); - +out: ksig->sig = signr; if (!(ksig->ka.sa.sa_flags & SA_EXPOSE_TAGBITS)) |