Re: [PATCH] prctl: add PR_[GS]ET_KILLABLE

On 07/30, Jürg Billeter wrote:

This is required for job control in a shell that uses CLONE_NEWPID for
child processes.

Could you explain in more details?

+	case PR_SET_KILLABLE:
+		if (arg2 != 1 || arg3 || arg4 || arg5)
+			return -EINVAL;
+		me->signal->flags &= ~SIGNAL_UNKILLABLE;

this needs spin_lock_irq(me->sighand->siglock).

Oleg.