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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-03-02 10:45:53 +0100
committerHelge Deller <deller@gmx.de>2013-02-20 22:50:26 +0100
commitb54cb2332e387f29c65f19f3620e5c812c89a328 (patch)
treef583188f34b154f3a17ce5e2a0747b553faea4a1
parentcca8e9026041544c0103b3037d8f03c1d2f4ae02 (diff)
parisc: remove IRQF_DISABLED
People are playing odd games with IRQF_DISABLED, remove it. Its not reliable, since shared interrupt lines could disable it for you, and its possible and allowed for archs to disable IRQs to limit IRQ nesting. Therefore, simply mandate that _ALL_ IRQ handlers are run with IRQs disabled. [ This _should_ not break anything, since we've mandated that IRQ handlers _must_ be able to deal with this for a _long_ time ] IRQ handlers should be fast, no if buts and any other exceptions. We also have plenty instrumentation to find any offending IRQ latency sources. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Helge Deller <deller@gmx.de>
-rw-r--r--arch/parisc/include/asm/floppy.h4
-rw-r--r--arch/parisc/kernel/irq.c4
-rw-r--r--drivers/parisc/superio.c2
3 files changed, 5 insertions, 5 deletions
diff --git a/arch/parisc/include/asm/floppy.h b/arch/parisc/include/asm/floppy.h
index 4ca69f558fae..f84ff12574b7 100644
--- a/arch/parisc/include/asm/floppy.h
+++ b/arch/parisc/include/asm/floppy.h
@@ -157,10 +157,10 @@ static int fd_request_irq(void)
{
if(can_use_virtual_dma)
return request_irq(FLOPPY_IRQ, floppy_hardint,
- IRQF_DISABLED, "floppy", NULL);
+ 0, "floppy", NULL);
else
return request_irq(FLOPPY_IRQ, floppy_interrupt,
- IRQF_DISABLED, "floppy", NULL);
+ 0, "floppy", NULL);
}
static unsigned long dma_mem_alloc(unsigned long size)
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 0299d63cd112..8094d3ed3b64 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
static struct irqaction timer_action = {
.handler = timer_interrupt,
.name = "timer",
- .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+ .flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
};
#ifdef CONFIG_SMP
static struct irqaction ipi_action = {
.handler = ipi_interrupt,
.name = "IPI",
- .flags = IRQF_DISABLED | IRQF_PERCPU,
+ .flags = IRQF_PERCPU,
};
#endif
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 5003458980d3..ac6e8e7a02df 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -274,7 +274,7 @@ superio_init(struct pci_dev *pcidev)
else
printk(KERN_ERR PFX "USB regulator not initialized!\n");
- if (request_irq(pdev->irq, superio_interrupt, IRQF_DISABLED,
+ if (request_irq(pdev->irq, superio_interrupt, 0,
SUPERIO, (void *)sio)) {
printk(KERN_ERR PFX "could not get irq\n");

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