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From: Frederic Weisbecker <frederic@kernel.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>,
	Jacek Anaszewski <jacek.anaszewski@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Wanpeng Li <wanpengli@tencent.com>,
	"Rafael J . Wysocki" <rjw@rjwysocki.net>,
	Rik van Riel <riel@surriel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Yauheni Kaliuta <yauheni.kaliuta@redhat.com>,
	Ingo Molnar <mingo@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Pavel Machek <pavel@ucw.cz>
Subject: [PATCH 08/14] sched/vtime: Rename vtime_accounting_cpu_enabled() to vtime_accounting_enabled_this_cpu()
Date: Wed, 16 Oct 2019 04:56:54 +0200	[thread overview]
Message-ID: <20191016025700.31277-9-frederic@kernel.org> (raw)
In-Reply-To: <20191016025700.31277-1-frederic@kernel.org>

Standardize the naming on top of the vtime_accounting_enabled_*() base.
Also make it clear we are checking the vtime state of the
*current* CPU with this function. We'll need to add an API to check that
state on remote CPUs as well, so we must disambiguate the naming.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Yauheni Kaliuta <yauheni.kaliuta@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rik van Riel <riel@surriel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wanpeng Li <wanpengli@tencent.com>
Cc: Ingo Molnar <mingo@kernel.org>
---
 include/linux/context_tracking.h |  4 ++--
 include/linux/vtime.h            | 10 +++++-----
 kernel/sched/cputime.c           |  2 +-
 kernel/time/tick-sched.c         |  2 +-
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index c9065ad518a7..64ec82851aa3 100644
--- a/include/linux/context_tracking.h
+++ b/include/linux/context_tracking.h
@@ -103,7 +103,7 @@ static inline void context_tracking_init(void) { }
 /* must be called with irqs disabled */
 static inline void guest_enter_irqoff(void)
 {
-	if (vtime_accounting_cpu_enabled())
+	if (vtime_accounting_enabled_this_cpu())
 		vtime_guest_enter(current);
 	else
 		current->flags |= PF_VCPU;
@@ -127,7 +127,7 @@ static inline void guest_exit_irqoff(void)
 	if (context_tracking_enabled())
 		__context_tracking_exit(CONTEXT_GUEST);
 
-	if (vtime_accounting_cpu_enabled())
+	if (vtime_accounting_enabled_this_cpu())
 		vtime_guest_exit(current);
 	else
 		current->flags &= ~PF_VCPU;
diff --git a/include/linux/vtime.h b/include/linux/vtime.h
index 54e91511250b..eb2e7a19054b 100644
--- a/include/linux/vtime.h
+++ b/include/linux/vtime.h
@@ -11,11 +11,11 @@
 struct task_struct;
 
 /*
- * vtime_accounting_cpu_enabled() definitions/declarations
+ * vtime_accounting_enabled_this_cpu() definitions/declarations
  */
 #if defined(CONFIG_VIRT_CPU_ACCOUNTING_NATIVE)
 
-static inline bool vtime_accounting_cpu_enabled(void) { return true; }
+static inline bool vtime_accounting_enabled_this_cpu(void) { return true; }
 extern void vtime_task_switch(struct task_struct *prev);
 
 #elif defined(CONFIG_VIRT_CPU_ACCOUNTING_GEN)
@@ -31,7 +31,7 @@ static inline bool vtime_accounting_enabled(void)
 	return context_tracking_enabled();
 }
 
-static inline bool vtime_accounting_cpu_enabled(void)
+static inline bool vtime_accounting_enabled_this_cpu(void)
 {
 	if (vtime_accounting_enabled()) {
 		if (context_tracking_enabled_this_cpu())
@@ -45,13 +45,13 @@ extern void vtime_task_switch_generic(struct task_struct *prev);
 
 static inline void vtime_task_switch(struct task_struct *prev)
 {
-	if (vtime_accounting_cpu_enabled())
+	if (vtime_accounting_enabled_this_cpu())
 		vtime_task_switch_generic(prev);
 }
 
 #else /* !CONFIG_VIRT_CPU_ACCOUNTING */
 
-static inline bool vtime_accounting_cpu_enabled(void) { return false; }
+static inline bool vtime_accounting_enabled_this_cpu(void) { return false; }
 static inline void vtime_task_switch(struct task_struct *prev) { }
 
 #endif
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 34086afc3518..b931a19df093 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -475,7 +475,7 @@ void account_process_tick(struct task_struct *p, int user_tick)
 	u64 cputime, steal;
 	struct rq *rq = this_rq();
 
-	if (vtime_accounting_cpu_enabled())
+	if (vtime_accounting_enabled_this_cpu())
 		return;
 
 	if (sched_clock_irqtime) {
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 955851748dc3..c2748232f607 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -1119,7 +1119,7 @@ static void tick_nohz_account_idle_ticks(struct tick_sched *ts)
 #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
 	unsigned long ticks;
 
-	if (vtime_accounting_cpu_enabled())
+	if (vtime_accounting_enabled_this_cpu())
 		return;
 	/*
 	 * We stopped the tick in idle. Update process times would miss the
-- 
2.23.0


  parent reply	other threads:[~2019-10-16  2:57 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-16  2:56 [PATCH 00/14] sched/nohz: Make kcpustat's CPUTIME_SYSTEM vtime aware v2 (Partially fix kcpustat on nohz_full) Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 01/14] sched/vtime: Record CPU under seqcount for kcpustat needs Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 02/14] sched/cputime: Add vtime idle task state Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 03/14] sched/cputime: Add vtime guest " Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 04/14] context_tracking: Remove context_tracking_active() Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 05/14] context_tracking: s/context_tracking_is_enabled/context_tracking_enabled() Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] context_tracking: Rename context_tracking_is_enabled() => context_tracking_enabled() tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 06/14] context_tracking: Rename context_tracking_is_cpu_enabled() to context_tracking_enabled_this_cpu() Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 07/14] context_tracking: Introduce context_tracking_enabled_cpu() Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` Frederic Weisbecker [this message]
2019-10-29  9:52   ` [tip: sched/core] sched/vtime: Rename vtime_accounting_cpu_enabled() to vtime_accounting_enabled_this_cpu() tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 09/14] sched/vtime: Introduce vtime_accounting_enabled_cpu() Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 10/14] context_tracking: Check static key on context_tracking_enabled_*cpu() Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 11/14] sched/kcpustat: Introduce vtime-aware kcpustat accessor for CPUTIME_SYSTEM Frederic Weisbecker
2019-10-24 11:50   ` Peter Zijlstra
2019-10-25  1:25     ` Frederic Weisbecker
2019-10-25  2:03   ` [PATCH 11/14 v2] " Frederic Weisbecker
2019-10-29  9:52     ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 12/14] procfs: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:56 ` [PATCH 13/14] cpufreq: " Frederic Weisbecker
2019-10-16  3:40   ` Viresh Kumar
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-16  2:57 ` [PATCH 14/14] leds: " Frederic Weisbecker
2019-10-29  9:52   ` [tip: sched/core] " tip-bot2 for Frederic Weisbecker
2019-10-24  0:45 ` [GIT PULL] sched/nohz: Make kcpustat's CPUTIME_SYSTEM vtime aware Frederic Weisbecker

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