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genirq: spurious.c: use time_* macros 

The functions time_before, time_before_eq, time_after, and
time_after_eq are more robust for comparing jiffies against other
values.

So following patch implements usage of the time_after() macro, defined
at linux/jiffies.h, which deals with wrapping correctly

Signed-off-by: S.Caglar Onur <caglar@pardus.org.tr>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
S.Caglar Onur 2008-02-14 17:36:51 +02:00 committed by Thomas Gleixner
parent 9a4c8546f3
commit 188fd89d53
1 changed files with 2 additions and 1 deletions
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3
kernel/irq/spurious.c
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@ -6,6 +6,7 @@
* This file contains spurious interrupt handling.
*/
#include <linux/jiffies.h>
#include <linux/irq.h>
#include <linux/module.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
* working systems
*/
if (jiffies - desc->last_unhandled > HZ/10)
if (time_after(jiffies, desc->last_unhandled + HZ/10))
desc->irqs_unhandled = 1;
else
desc->irqs_unhandled++;