diff options
| author |   Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-04-06 11:45:12 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2009-04-07 10:49:01 +0200 |
| commit | 849691a6cd40270ff5f4a8846d5f6bf8df663ffc (patch) | |
| tree | b61157f375905d21bf0facae603e4247e1de9007 /include/linux/kernel_stat.h | |
| parent | perf_counter: rework the task clock software counter (diff) | |
| download | wireguard-linux-849691a6cd40270ff5f4a8846d5f6bf8df663ffc.tar.xz wireguard-linux-849691a6cd40270ff5f4a8846d5f6bf8df663ffc.zip | |
perf_counter: remove rq->lock usage
Now that all the task runtime clock users are gone, remove the ugly
rq->lock usage from perf counters, which solves the nasty deadlock
seen when a software task clock counter was read from an NMI overflow
context.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <20090406094518.531137582@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/kernel_stat.h')
| -rw-r--r-- | include/linux/kernel_stat.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index b6d2887a5d88..080d1fd461d7 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -85,8 +85,6 @@ static inline unsigned int kstat_irqs(unsigned int irq) /* * 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 *); |