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Date: Thu, 19 Nov 2015 16:47:32 +0100
From: Frederic Weisbecker <fweisbec@...il.com>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>,
Peter Zijlstra <peterz@...radead.org>,
Chris Metcalf <cmetcalf@...hip.com>,
Thomas Gleixner <tglx@...utronix.de>,
Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>,
Luiz Capitulino <lcapitulino@...hat.com>,
Christoph Lameter <cl@...ux.com>,
"Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
Ingo Molnar <mingo@...nel.org>, stable@...r.kernel.org,
Rik van Riel <riel@...hat.com>
Subject: [PATCH 5/7] 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.
Cc: Christoph Lameter <cl@...ux.com>
Cc: Chris Metcalf <cmetcalf@...hip.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Luiz Capitulino <lcapitulino@...hat.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Rik van Riel <riel@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Cc: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
---
include/linux/context_tracking.h | 4 ++--
include/linux/vtime.h | 14 +++++++-------
kernel/sched/cputime.c | 2 +-
kernel/time/tick-sched.c | 2 +-
4 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index 68b575a..d259274 100644
--- 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
--- 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
--- 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 7c7ec45..b4a2a31 100644
--- 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
--
2.5.3
--
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