diff options
| author | Ingo Molnar <mingo@kernel.org> | 2012-12-08 15:44:43 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-12-08 15:44:43 +0100 |
| commit | 38130ec08716ae2ece8060eca01607b58da7258c (patch) | |
| tree | 71d0cd76ccfb2b960ddb6b820850269265389052 /include | |
| parent | e783377e93d4043a11013ce6e9173db34998e653 (diff) | |
| parent | 1b2852b152be5150fbef7b585388ec43cf6f4415 (diff) | |
Merge tag 'sched-cputime-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks into sched/core
Pull more cputime cleanups from Frederic Weisbecker:
* Get rid of underscores polluting the vtime namespace
* Consolidate context switch and tick handling
* Improve debuggability by detecting irq unsafe callers
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/kernel_stat.h | 8 | ||||
| -rw-r--r-- | include/linux/kvm_host.h | 4 | ||||
| -rw-r--r-- | include/linux/vtime.h | 9 |
3 files changed, 15 insertions, 6 deletions
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index 1865b1f2977..66b70780e91 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -127,7 +127,15 @@ extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t) extern void account_steal_time(cputime_t); extern void account_idle_time(cputime_t); +#ifdef CONFIG_VIRT_CPU_ACCOUNTING +static inline void account_process_tick(struct task_struct *tsk, int user) +{ + vtime_account_user(tsk); +} +#else extern void account_process_tick(struct task_struct *, int user); +#endif + extern void account_steal_ticks(unsigned long ticks); extern void account_idle_ticks(unsigned long ticks); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 3738c260dde..d5cddd8dcc5 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -730,7 +730,7 @@ static inline void kvm_guest_enter(void) * This is running in ioctl context so we can avoid * the call to vtime_account() with its unnecessary idle check. */ - vtime_account_system(current); + vtime_account_system_irqsafe(current); current->flags |= PF_VCPU; /* KVM does not hold any references to rcu protected data when it * switches CPU into a guest mode. In fact switching to a guest mode @@ -748,7 +748,7 @@ static inline void kvm_guest_exit(void) * This is running in ioctl context so we can avoid * the call to vtime_account() with its unnecessary idle check. */ - vtime_account_system(current); + vtime_account_system_irqsafe(current); current->flags &= ~PF_VCPU; } diff --git a/include/linux/vtime.h b/include/linux/vtime.h index 0c2a2d30302..ae30ab58431 100644 --- a/include/linux/vtime.h +++ b/include/linux/vtime.h @@ -5,14 +5,15 @@ struct task_struct; #ifdef CONFIG_VIRT_CPU_ACCOUNTING extern void vtime_task_switch(struct task_struct *prev); -extern void __vtime_account_system(struct task_struct *tsk); extern void vtime_account_system(struct task_struct *tsk); -extern void __vtime_account_idle(struct task_struct *tsk); +extern void vtime_account_system_irqsafe(struct task_struct *tsk); +extern void vtime_account_idle(struct task_struct *tsk); +extern void vtime_account_user(struct task_struct *tsk); extern void vtime_account(struct task_struct *tsk); #else static inline void vtime_task_switch(struct task_struct *prev) { } -static inline void __vtime_account_system(struct task_struct *tsk) { } static inline void vtime_account_system(struct task_struct *tsk) { } +static inline void vtime_account_system_irqsafe(struct task_struct *tsk) { } static inline void vtime_account(struct task_struct *tsk) { } #endif @@ -40,7 +41,7 @@ static inline void vtime_account_irq_enter(struct task_struct *tsk) static inline void vtime_account_irq_exit(struct task_struct *tsk) { /* On hard|softirq exit we always account to hard|softirq cputime */ - __vtime_account_system(tsk); + vtime_account_system(tsk); irqtime_account_irq(tsk); } |