Re: [PATCH 1/2] Keep track of original clocksource frequency
From: Roman Zippel
Date: Wed Apr 02 2008 - 07:21:40 EST
Hi,
On Tue, 18 Mar 2008, john stultz wrote:
> @@ -63,6 +64,7 @@ struct clocksource {
> cycle_t (*read)(void);
> cycle_t mask;
> u32 mult;
> + s32 mult_orig;
> u32 shift;
> unsigned long flags;
> cycle_t (*vread)(void);
This is wrong, with HZ=100 the jiffies clock multiplier suddenly becomes
negative and later the raw interval underflows.
bye, Roman
Signed-off-by: Roman Zippel <zippel@xxxxxxxxxxxxxx>
---
include/linux/clocksource.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.6/include/linux/clocksource.h
===================================================================
--- linux-2.6.orig/include/linux/clocksource.h
+++ linux-2.6/include/linux/clocksource.h
@@ -64,7 +64,7 @@ struct clocksource {
cycle_t (*read)(void);
cycle_t mask;
u32 mult;
- s32 mult_orig;
+ u32 mult_orig;
u32 shift;
unsigned long flags;
cycle_t (*vread)(void);
--
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