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authorThomas Gleixner <tglx@linutronix.de>2011-07-13 14:05:05 +0200
committerClark Williams <williams@redhat.com>2012-04-13 11:01:49 -0500
commitde300e79815874f625a381f7ab8a70014b6a4215 (patch)
treec348d863a71e00c928d4ef66bbb0e6a4a7551e27
parentf4553b96464806d0feedc27de7c375b92dd6c56d (diff)
x86-no-perf-irq-work-rt.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/x86/kernel/irq_work.c2
-rw-r--r--kernel/irq_work.c2
-rw-r--r--kernel/timer.c6
3 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/kernel/irq_work.c b/arch/x86/kernel/irq_work.c
index ca8f703a1e70..129b8bb73de2 100644
--- a/arch/x86/kernel/irq_work.c
+++ b/arch/x86/kernel/irq_work.c
@@ -18,6 +18,7 @@ void smp_irq_work_interrupt(struct pt_regs *regs)
irq_exit();
}
+#ifndef CONFIG_PREEMPT_RT_FULL
void arch_irq_work_raise(void)
{
#ifdef CONFIG_X86_LOCAL_APIC
@@ -28,3 +29,4 @@ void arch_irq_work_raise(void)
apic_wait_icr_idle();
#endif
}
+#endif
diff --git a/kernel/irq_work.c b/kernel/irq_work.c
index 0c56d44b9fd5..6e1c594d642f 100644
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@ -106,8 +106,10 @@ void irq_work_run(void)
if (llist_empty(this_list))
return;
+#ifndef CONFIG_PREEMPT_RT_FULL
BUG_ON(!in_irq());
BUG_ON(!irqs_disabled());
+#endif
llnode = llist_del_all(this_list);
while (llnode != NULL) {
diff --git a/kernel/timer.c b/kernel/timer.c
index f6f2958ad606..935f46dffbb5 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1412,7 +1412,7 @@ void update_process_times(int user_tick)
scheduler_tick();
run_local_timers();
rcu_check_callbacks(cpu, user_tick);
-#ifdef CONFIG_IRQ_WORK
+#if defined(CONFIG_IRQ_WORK) && !defined(CONFIG_PREEMPT_RT_FULL)
if (in_irq())
irq_work_run();
#endif
@@ -1426,6 +1426,10 @@ static void run_timer_softirq(struct softirq_action *h)
{
struct tvec_base *base = __this_cpu_read(tvec_bases);
+#if defined(CONFIG_IRQ_WORK) && defined(CONFIG_PREEMPT_RT_FULL)
+ irq_work_run();
+#endif
+
printk_tick();
hrtimer_run_pending();