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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-07-18 13:59:17 +0200 |
|---|---|---|
| committer | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2019-12-17 22:00:19 +0100 |
| commit | 5ea901fa1716906d0f7bd77a54eccb3aba9be325 (patch) | |
| tree | 65695840f3785800a1e1ffd181eae9c663d196cd /arch/sparc/kernel | |
| parent | cc2c40590da849d3c4a43e6488e0a6219e1f9a0f (diff) | |
| download | linux-rt-5ea901fa1716906d0f7bd77a54eccb3aba9be325.tar.gz | |
softirq: Disable softirq stacks for RT
Disable extra stacks for softirqs. We want to preempt softirqs and
having them on special IRQ-stack does not make this easier.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/sparc/kernel')
| -rw-r--r-- | arch/sparc/kernel/irq_64.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index 3ec9f1402aad..eb21682abfcb 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -854,6 +854,7 @@ void __irq_entry handler_irq(int pil, struct pt_regs *regs) set_irq_regs(old_regs); } +#ifndef CONFIG_PREEMPT_RT void do_softirq_own_stack(void) { void *orig_sp, *sp = softirq_stack[smp_processor_id()]; @@ -868,6 +869,7 @@ void do_softirq_own_stack(void) __asm__ __volatile__("mov %0, %%sp" : : "r" (orig_sp)); } +#endif #ifdef CONFIG_HOTPLUG_CPU void fixup_irqs(void) |