cputime: Use a proper subsystem naming for vtime related APIs
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>
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 6247197..16bb6ed 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -88,7 +88,7 @@
* accumulated times to the current process, and to prepare accounting on
* the next process.
*/
-void account_switch_vtime(struct task_struct *prev)
+void vtime_task_switch(struct task_struct *prev)
{
struct thread_info *pi = task_thread_info(prev);
struct thread_info *ni = task_thread_info(current);
@@ -116,7 +116,7 @@
* Account time for a transition between system, hard irq or soft irq state.
* Note that this function is called with interrupts enabled.
*/
-void account_system_vtime(struct task_struct *tsk)
+void vtime_account(struct task_struct *tsk)
{
struct thread_info *ti = task_thread_info(tsk);
unsigned long flags;
@@ -138,7 +138,7 @@
local_irq_restore(flags);
}
-EXPORT_SYMBOL_GPL(account_system_vtime);
+EXPORT_SYMBOL_GPL(vtime_account);
/*
* Called from the timer interrupt handler to charge accumulated user time
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 49da7f0..39899d7 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -291,7 +291,7 @@
* Account time for a transition between system, hard irq
* or soft irq state.
*/
-void account_system_vtime(struct task_struct *tsk)
+void vtime_account(struct task_struct *tsk)
{
u64 now, nowscaled, delta, deltascaled;
unsigned long flags;
@@ -343,14 +343,14 @@
}
local_irq_restore(flags);
}
-EXPORT_SYMBOL_GPL(account_system_vtime);
+EXPORT_SYMBOL_GPL(vtime_account);
/*
* Transfer the user and system times accumulated in the paca
* by the exception entry and exit code to the generic process
* user and system time records.
* Must be called with interrupts disabled.
- * Assumes that account_system_vtime() has been called recently
+ * Assumes that vtime_account() has been called recently
* (i.e. since the last entry from usermode) so that
* get_paca()->user_time_scaled is up to date.
*/
@@ -366,9 +366,9 @@
account_user_time(tsk, utime, utimescaled);
}
-void account_switch_vtime(struct task_struct *prev)
+void vtime_task_switch(struct task_struct *prev)
{
- account_system_vtime(prev);
+ vtime_account(prev);
account_process_tick(prev, 0);
}
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 449ac22..cb5093c 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -99,7 +99,7 @@
return virt_timer_forward(user + system);
}
-void account_switch_vtime(struct task_struct *prev)
+void vtime_task_switch(struct task_struct *prev)
{
struct thread_info *ti;
@@ -122,7 +122,7 @@
* Update process times based on virtual cpu times stored by entry.S
* to the lowcore fields user_timer, system_timer & steal_clock.
*/
-void account_system_vtime(struct task_struct *tsk)
+void vtime_account(struct task_struct *tsk)
{
struct thread_info *ti = task_thread_info(tsk);
u64 timer, system;
@@ -138,7 +138,7 @@
virt_timer_forward(system);
}
-EXPORT_SYMBOL_GPL(account_system_vtime);
+EXPORT_SYMBOL_GPL(vtime_account);
void __kprobes vtime_stop_cpu(void)
{