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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-17 14:10:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-23 12:45:14 +0100 |
| commit | aa9c4c0f967fdb482ea95e8473ec3d201e6e0781 (patch) | |
| tree | 8223d34630b7d3130825e8a2197e9bb51c34b7fa /include/linux/kernel_stat.h | |
| parent | 7671581f1666ef4b54a1c1e598c51ac44c060a9b (diff) | |
| download | lwn-aa9c4c0f967fdb482ea95e8473ec3d201e6e0781.tar.gz lwn-aa9c4c0f967fdb482ea95e8473ec3d201e6e0781.zip | |
perfcounters: fix task clock counter
Impact: fix per task clock counter precision
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/kernel_stat.h')
| -rw-r--r-- | include/linux/kernel_stat.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index 4a145caeee07..1b2e3242497c 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -66,7 +66,15 @@ static inline unsigned int kstat_irqs(unsigned int irq) return sum; } + +/* + * Lock/unlock the current runqueue - to extract task statistics: + */ +extern void curr_rq_lock_irq_save(unsigned long *flags); +extern void curr_rq_unlock_irq_restore(unsigned long *flags); +extern unsigned long long __task_delta_exec(struct task_struct *tsk, int update); extern unsigned long long task_delta_exec(struct task_struct *); + extern void account_user_time(struct task_struct *, cputime_t); extern void account_user_time_scaled(struct task_struct *, cputime_t); extern void account_system_time(struct task_struct *, int, cputime_t); |