diff options
-rw-r--r-- | kernel/rcutree_plugin.h | 2 | ||||
-rw-r--r-- | kernel/softirq.c | 12 |
2 files changed, 11 insertions, 3 deletions
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h index d9d7a89da8bb..8aafbb80b8b0 100644 --- a/kernel/rcutree_plugin.h +++ b/kernel/rcutree_plugin.h | |||
@@ -318,7 +318,7 @@ static noinline void rcu_read_unlock_special(struct task_struct *t) | |||
318 | } | 318 | } |
319 | 319 | ||
320 | /* Hardware IRQ handlers cannot block. */ | 320 | /* Hardware IRQ handlers cannot block. */ |
321 | if (in_irq()) { | 321 | if (in_irq() || in_serving_softirq()) { |
322 | local_irq_restore(flags); | 322 | local_irq_restore(flags); |
323 | return; | 323 | return; |
324 | } | 324 | } |
diff --git a/kernel/softirq.c b/kernel/softirq.c index 40cf63ddd4b3..fca82c32042b 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c | |||
@@ -315,16 +315,24 @@ static inline void invoke_softirq(void) | |||
315 | { | 315 | { |
316 | if (!force_irqthreads) | 316 | if (!force_irqthreads) |
317 | __do_softirq(); | 317 | __do_softirq(); |
318 | else | 318 | else { |
319 | __local_bh_disable((unsigned long)__builtin_return_address(0), | ||
320 | SOFTIRQ_OFFSET); | ||
319 | wakeup_softirqd(); | 321 | wakeup_softirqd(); |
322 | __local_bh_enable(SOFTIRQ_OFFSET); | ||
323 | } | ||
320 | } | 324 | } |
321 | #else | 325 | #else |
322 | static inline void invoke_softirq(void) | 326 | static inline void invoke_softirq(void) |
323 | { | 327 | { |
324 | if (!force_irqthreads) | 328 | if (!force_irqthreads) |
325 | do_softirq(); | 329 | do_softirq(); |
326 | else | 330 | else { |
331 | __local_bh_disable((unsigned long)__builtin_return_address(0), | ||
332 | SOFTIRQ_OFFSET); | ||
327 | wakeup_softirqd(); | 333 | wakeup_softirqd(); |
334 | __local_bh_enable(SOFTIRQ_OFFSET); | ||
335 | } | ||
328 | } | 336 | } |
329 | #endif | 337 | #endif |
330 | 338 | ||