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genirq: Add IRQ_INPROGRESS to core

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We need to maintain the flag for now in both fields status and istate.
Add a CONFIG_GENERIC_HARDIRQS_NO_COMPAT switch to allow testing w/o
the status one. Wrap the access to status IRQ_INPROGRESS in a inline
which can be turned of with CONFIG_GENERIC_HARDIRQS_NO_COMPAT along
with the define.

There is no reason that anything outside of core looks at this. That
needs some modifications, but we'll get there.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2011-02-07 21:48:49 +01:00
parent 6954b75b48
commit 009b4c3b8a
9 changed files with 57 additions and 22 deletions
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6
kernel/irq/handle.c
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@@ -123,13 +123,15 @@ irqreturn_t handle_irq_event(struct irq_desc *desc)
irqreturn_t ret;
desc->status &= ~IRQ_PENDING;
desc->status |= IRQ_INPROGRESS;
irq_compat_set_progress(desc);
desc->istate |= IRQS_INPROGRESS;
raw_spin_unlock(&desc->lock);
ret = handle_irq_event_percpu(desc, action);
raw_spin_lock(&desc->lock);
desc->status &= ~IRQ_INPROGRESS;
desc->istate &= ~IRQS_INPROGRESS;
irq_compat_clr_progress(desc);
return ret;
}