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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-20 15:56:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-20 15:56:25 -0700
commitcf6ace16a3cd8b728fb0afa68368fd40bbeae19f (patch)
tree489c64380668e8c5a29d3f36f37554e4b081a647 /kernel/softirq.c
parentacc11eab70591744369722280c9ce162a6193494 (diff)
parentd1e9ae47a0285d3f1699e8219ce50f656243b93f (diff)
downloadlinux-cf6ace16a3cd8b728fb0afa68368fd40bbeae19f.tar.bz2
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: signal: align __lock_task_sighand() irq disabling and RCU softirq,rcu: Inform RCU of irq_exit() activity sched: Add irq_{enter,exit}() to scheduler_ipi() rcu: protect __rcu_read_unlock() against scheduler-using irq handlers rcu: Streamline code produced by __rcu_read_unlock() rcu: Fix RCU_BOOST race handling current->rcu_read_unlock_special rcu: decrease rcu_report_exp_rnp coupling with scheduler
Diffstat (limited to 'kernel/softirq.c')
-rw-r--r--kernel/softirq.c12
1 files changed, 10 insertions, 2 deletions
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)
{
if (!force_irqthreads)
__do_softirq();
- else
+ else {
+ __local_bh_disable((unsigned long)__builtin_return_address(0),
+ SOFTIRQ_OFFSET);
wakeup_softirqd();
+ __local_bh_enable(SOFTIRQ_OFFSET);
+ }
}
#else
static inline void invoke_softirq(void)
{
if (!force_irqthreads)
do_softirq();
- else
+ else {
+ __local_bh_disable((unsigned long)__builtin_return_address(0),
+ SOFTIRQ_OFFSET);
wakeup_softirqd();
+ __local_bh_enable(SOFTIRQ_OFFSET);
+ }
}
#endif