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: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Peter 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: Ingo Molnar <mingo@kernel.org>

diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index 68b575a..d259274 100644 (file)
--- a/include/linux/context_tracking.h
+++ b/include/linux/context_tracking.h
@@ -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;

diff --git a/include/linux/vtime.h b/include/linux/vtime.h
index c5165fd..ca23e83 100644 (file)
--- a/include/linux/vtime.h
+++ b/include/linux/vtime.h
@@ -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);
 }
 

diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 5cf24e7..5727217 100644 (file)
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -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) {

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 515edf3..11ce599 100644 (file)
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -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