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Commit 55dbdcfa authored by Frederic Weisbecker's avatar Frederic Weisbecker Committed by Ingo Molnar
Browse files

sched/cputime: Rename vtime_accounting_enabled() to vtime_accounting_cpu_enabled() 



vtime_accounting_enabled() checks if vtime is running on the current CPU
and is as such a misnomer. Lets rename it to a function that reflect its
locality. We are going to need the current name for a function that tells
if vtime runs at all on some CPU.

Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul E . McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1447948054-28668-6-git-send-email-fweisbec@gmail.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent cab245d6

include/linux/context_tracking.h

+2 −2
Original line number Diff line number Diff line
@@ -86,7 +86,7 @@ static inline void context_tracking_init(void) { } 
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN

static inline void guest_enter(void)

{

	if (vtime_accounting_enabled())

	if (vtime_accounting_cpu_enabled())

		vtime_guest_enter(current);

	else

		current->flags |= PF_VCPU;
@@ -100,7 +100,7 @@ static inline void guest_exit(void) 
	if (context_tracking_is_enabled())

		__context_tracking_exit(CONTEXT_GUEST);



	if (vtime_accounting_enabled())

	if (vtime_accounting_cpu_enabled())

		vtime_guest_exit(current);

	else

		current->flags &= ~PF_VCPU;

include/linux/vtime.h

+7 −7
Original line number Diff line number Diff line
@@ -10,14 +10,14 @@ 
struct task_struct;



/*

 * vtime_accounting_enabled() definitions/declarations

 * vtime_accounting_cpu_enabled() definitions/declarations

 */

#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE

static inline bool vtime_accounting_enabled(void) { return true; }

static inline bool vtime_accounting_cpu_enabled(void) { return true; }

#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */



#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN

static inline bool vtime_accounting_enabled(void)

static inline bool vtime_accounting_cpu_enabled(void)

{

	if (context_tracking_is_enabled()) {

		if (context_tracking_cpu_is_enabled())
@@ -29,7 +29,7 @@ static inline bool vtime_accounting_enabled(void) 
#endif /* CONFIG_VIRT_CPU_ACCOUNTING_GEN */



#ifndef CONFIG_VIRT_CPU_ACCOUNTING

static inline bool vtime_accounting_enabled(void) { return false; }

static inline bool vtime_accounting_cpu_enabled(void) { return false; }

#endif /* !CONFIG_VIRT_CPU_ACCOUNTING */
@@ -44,7 +44,7 @@ extern void vtime_task_switch(struct task_struct *prev); 
extern void vtime_common_task_switch(struct task_struct *prev);

static inline void vtime_task_switch(struct task_struct *prev)

{

	if (vtime_accounting_enabled())

	if (vtime_accounting_cpu_enabled())

		vtime_common_task_switch(prev);

}

#endif /* __ARCH_HAS_VTIME_TASK_SWITCH */
@@ -59,7 +59,7 @@ extern void vtime_account_irq_enter(struct task_struct *tsk); 
extern void vtime_common_account_irq_enter(struct task_struct *tsk);

static inline void vtime_account_irq_enter(struct task_struct *tsk)

{

	if (vtime_accounting_enabled())

	if (vtime_accounting_cpu_enabled())

		vtime_common_account_irq_enter(tsk);

}

#endif /* __ARCH_HAS_VTIME_ACCOUNT */
@@ -78,7 +78,7 @@ extern void vtime_gen_account_irq_exit(struct task_struct *tsk); 


static inline void vtime_account_irq_exit(struct task_struct *tsk)

{

	if (vtime_accounting_enabled())

	if (vtime_accounting_cpu_enabled())

		vtime_gen_account_irq_exit(tsk);

}

kernel/sched/cputime.c

+1 −1
Original line number Diff line number Diff line
@@ -466,7 +466,7 @@ void account_process_tick(struct task_struct *p, int user_tick) 
	cputime_t one_jiffy_scaled = cputime_to_scaled(cputime_one_jiffy);

	struct rq *rq = this_rq();



	if (vtime_accounting_enabled())

	if (vtime_accounting_cpu_enabled())

		return;



	if (sched_clock_irqtime) {

kernel/time/tick-sched.c

+1 −1
Original line number Diff line number Diff line
@@ -875,7 +875,7 @@ static void tick_nohz_account_idle_ticks(struct tick_sched *ts) 
#ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE

	unsigned long ticks;



	if (vtime_accounting_enabled())

	if (vtime_accounting_cpu_enabled())

		return;

	/*

	 * We stopped the tick in idle. Update process times would miss the