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cputime: Use a proper subsystem naming for vtime related APIs

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Use a naming based on vtime as a prefix for virtual based
cputime accounting APIs:

- account_system_vtime() -> vtime_account()
- account_switch_vtime() -> vtime_task_switch()

It makes it easier to allow for further declension such
as vtime_account_system(), vtime_account_idle(), ... if we
want to find out the context we account to from generic code.

This also make it better to know on which subsystem these APIs
refer to.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
This commit is contained in:
Frederic Weisbecker 2012-09-08 15:23:11 +02:00
parent bc2a27cd27
commit bf9fae9f5e
9 changed files with 27 additions and 27 deletions
Download patch file Download diff file Expand all files Collapse all files

8
include/linux/hardirq.h
View file

@ -132,11 +132,11 @@ extern void synchronize_irq(unsigned int irq);
struct task_struct;
#if !defined(CONFIG_VIRT_CPU_ACCOUNTING) && !defined(CONFIG_IRQ_TIME_ACCOUNTING)
static inline void account_system_vtime(struct task_struct *tsk)
static inline void vtime_account(struct task_struct *tsk)
{
}
#else
extern void account_system_vtime(struct task_struct *tsk);
extern void vtime_account(struct task_struct *tsk);
#endif
#if defined(CONFIG_TINY_RCU) || defined(CONFIG_TINY_PREEMPT_RCU)
@ -162,7 +162,7 @@ extern void rcu_nmi_exit(void);
*/
#define __irq_enter() \
do { \
account_system_vtime(current); \
vtime_account(current); \
add_preempt_count(HARDIRQ_OFFSET); \
trace_hardirq_enter(); \
} while (0)
@ -178,7 +178,7 @@ extern void irq_enter(void);
#define __irq_exit() \
do { \
trace_hardirq_exit(); \
account_system_vtime(current); \
vtime_account(current); \
sub_preempt_count(HARDIRQ_OFFSET); \
} while (0)