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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-12-31 15:11:40 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-12-31 15:11:47 +0100 |
| commit | 6f43092441bda528dd38f2dc6c1e2522c5079fb7 (patch) | |
| tree | e8bba1cf80b19be3e3658b9351b32469ba8c6bac /arch/s390/include/asm/cpu.h | |
| parent | [PATCH] improve precision of process accounting. (diff) | |
| download | linux-dev-6f43092441bda528dd38f2dc6c1e2522c5079fb7.tar.xz linux-dev-6f43092441bda528dd38f2dc6c1e2522c5079fb7.zip | |
[PATCH] improve precision of idle time detection.
Increase the precision of the idle time calculation that is exported
to user space via /sys/devices/system/cpu/cpu<x>/idle_time_us
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/cpu.h')
| -rw-r--r-- | arch/s390/include/asm/cpu.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/s390/include/asm/cpu.h b/arch/s390/include/asm/cpu.h index e5a6a9ba3adf..89456df43c4a 100644 --- a/arch/s390/include/asm/cpu.h +++ b/arch/s390/include/asm/cpu.h @@ -14,7 +14,6 @@ struct s390_idle_data { spinlock_t lock; - unsigned int in_idle; unsigned long long idle_count; unsigned long long idle_enter; unsigned long long idle_time; @@ -26,7 +25,7 @@ void s390_idle_leave(void); static inline void s390_idle_check(void) { - if ((&__get_cpu_var(s390_idle))->in_idle) + if ((&__get_cpu_var(s390_idle))->idle_enter != 0ULL) s390_idle_leave(); } |