diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2006-07-03 19:54:59 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-07-03 19:54:59 +1000 |
| commit | 5a43a066b11ac2fe84cf67307f20b83bea390f83 (patch) | |
| tree | d4770958575f4e7592620d9a0d36c431ecceefc9 /kernel/irq/chip.c | |
| parent | 3e9a69275f23baec86b54febc5dad0b2fc7fb200 (diff) | |
| download | linux-5a43a066b11ac2fe84cf67307f20b83bea390f83.tar.gz linux-5a43a066b11ac2fe84cf67307f20b83bea390f83.tar.bz2 linux-5a43a066b11ac2fe84cf67307f20b83bea390f83.zip | |
[PATCH] genirq: Allow fasteoi handler to retrigger disabled interrupts
Make the fasteoi handler mark disabled interrupts as pending if they
happen anyway. This allow implementation of a delayed disable scheme
with the fasteoi handler.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'kernel/irq/chip.c')
| -rw-r--r-- | kernel/irq/chip.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 54105bdfe20d..9336f2e89e40 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -261,10 +261,13 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc, struct pt_regs *regs) * keep it masked and get out of here */ action = desc->action; - if (unlikely(!action || (desc->status & IRQ_DISABLED))) + if (unlikely(!action || (desc->status & IRQ_DISABLED))) { + desc->status |= IRQ_PENDING; goto out; + } desc->status |= IRQ_INPROGRESS; + desc->status &= ~IRQ_PENDING; spin_unlock(&desc->lock); action_ret = handle_IRQ_event(irq, regs, action); |