AcoSail/kernel_optimize_test
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-genirq

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* git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-genirq:
  genirq: do not leave interupts enabled on free_irq
  genirq: spurious.c: use time_* macros
This commit is contained in:
Linus Torvalds 2008-02-19 07:54:02 -08:00
commit cf91b824bb
2 changed files with 21 additions and 2 deletions
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20
kernel/irq/chip.c
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@ -245,6 +245,17 @@ static unsigned int default_startup(unsigned int irq)
return 0; return 0;
} }
/*
* default shutdown function
*/
static void default_shutdown(unsigned int irq)
{
struct irq_desc *desc = irq_desc + irq;
desc->chip->mask(irq);
desc->status |= IRQ_MASKED;
}
/* /*
* Fixup enable/disable function pointers * Fixup enable/disable function pointers
*/ */
@ -256,8 +267,15 @@ void irq_chip_set_defaults(struct irq_chip *chip)
chip->disable = default_disable; chip->disable = default_disable;
if (!chip->startup) if (!chip->startup)
chip->startup = default_startup; chip->startup = default_startup;
/*
* We use chip->disable, when the user provided its own. When
* we have default_disable set for chip->disable, then we need
* to use default_shutdown, otherwise the irq line is not
* disabled on free_irq():
*/
if (!chip->shutdown) if (!chip->shutdown)
chip->shutdown = chip->disable; chip->shutdown = chip->disable != default_disable ?
chip->disable : default_shutdown;
if (!chip->name) if (!chip->name)
chip->name = chip->typename; chip->name = chip->typename;
if (!chip->end) if (!chip->end)

3
kernel/irq/spurious.c
View File

@ -6,6 +6,7 @@
* This file contains spurious interrupt handling. * This file contains spurious interrupt handling.
*/ */
#include <linux/jiffies.h>
#include <linux/irq.h> #include <linux/irq.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/kallsyms.h> #include <linux/kallsyms.h>
@ -179,7 +180,7 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc,
* otherwise the couter becomes a doomsday timer for otherwise * otherwise the couter becomes a doomsday timer for otherwise
* working systems * working systems
*/ */
if (jiffies - desc->last_unhandled > HZ/10) if (time_after(jiffies, desc->last_unhandled + HZ/10))
desc->irqs_unhandled = 1; desc->irqs_unhandled = 1;
else else
desc->irqs_unhandled++; desc->irqs_unhandled++;