Allocating the LinuxKPI current structure from an interrupt thread must be

done using the M_NOWAIT flag after 1ae20f7c .

MFC after:	1 week
Sponsored by:	Mellanox Technologies // NVIDIA Networking

sys/compat/linuxkpi/common/src/linux_compat.c

@@ -2384,7 +2384,8 @@ linux_irq_handler(void *ent)
 {
 	struct irq_ent *irqe;
 
-	linux_set_current(curthread);
+	if (linux_set_current_flags(curthread, M_NOWAIT))
+		return;
 
 	irqe = ent;
 	irqe->handler(irqe->irq, irqe->arg);