diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-07-21 19:06:43 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2013-04-04 22:09:25 (GMT) |
| commit | 01b8de7ad30dd000532acebf4b4684fa6e620270 (patch) | |
| tree | bb341afaf97f3a13ea8e6d19430b675e63fc04b3 /kernel | |
| parent | b6d336ed51b97bc5ee0e2c900ecfef371e19c125 (diff) | |
| download | linux-fsl-qoriq-01b8de7ad30dd000532acebf4b4684fa6e620270.tar.xz | |
softirq-make-fifo.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/softirq.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c index bca3e64..7a19af0 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -364,6 +364,8 @@ asmlinkage void do_softirq(void) static inline void local_bh_disable_nort(void) { local_bh_disable(); } static inline void _local_bh_enable_nort(void) { _local_bh_enable(); } +static void ksoftirqd_set_sched_params(unsigned int cpu) { } +static void ksoftirqd_clr_sched_params(unsigned int cpu, bool online) { } #else /* !PREEMPT_RT_FULL */ @@ -518,6 +520,20 @@ static int ksoftirqd_do_softirq(int cpu) static inline void local_bh_disable_nort(void) { } static inline void _local_bh_enable_nort(void) { } +static inline void ksoftirqd_set_sched_params(unsigned int cpu) +{ + struct sched_param param = { .sched_priority = 1 }; + + sched_setscheduler(current, SCHED_FIFO, ¶m); +} + +static inline void ksoftirqd_clr_sched_params(unsigned int cpu, bool online) +{ + struct sched_param param = { .sched_priority = 0 }; + + sched_setscheduler(current, SCHED_NORMAL, ¶m); +} + #endif /* PREEMPT_RT_FULL */ /* * Enter an interrupt context. @@ -1065,6 +1081,8 @@ static struct notifier_block __cpuinitdata cpu_nfb = { static struct smp_hotplug_thread softirq_threads = { .store = &ksoftirqd, + .setup = ksoftirqd_set_sched_params, + .cleanup = ksoftirqd_clr_sched_params, .thread_should_run = ksoftirqd_should_run, .thread_fn = run_ksoftirqd, .thread_comm = "ksoftirqd/%u", |