irq: Sanitize invoke_softirq

With the irq protection in irq_exit, we can remove the #ifdeffery and
the bh_disable/enable dance in invoke_softirq()

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>
Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1302202155320.22263@ionos

diff --git a/kernel/softirq.c b/kernel/softirq.c
index f2a934673008f1f845a976c0fb78a9034dda6ed7..24a921bcf04fc5f58c31446bcda7ae5d16581775 100644 (file)
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -322,18 +322,10 @@ void irq_enter(void)
 
 static inline void invoke_softirq(void)
 {
-       if (!force_irqthreads) {
-#ifdef __ARCH_IRQ_EXIT_IRQS_DISABLED
+       if (!force_irqthreads)
                __do_softirq();
-#else
-               do_softirq();
-#endif
-       } else {
-               __local_bh_disable((unsigned long)__builtin_return_address(0),
-                               SOFTIRQ_OFFSET);
+       else
                wakeup_softirqd();
-               __local_bh_enable(SOFTIRQ_OFFSET);
-       }
 }
 
 /*