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-rw-r--r--include/linux/vtime.h32
-rw-r--r--init/Kconfig6
-rw-r--r--kernel/sched/cputime.c16
3 files changed, 20 insertions, 34 deletions
diff --git a/include/linux/vtime.h b/include/linux/vtime.h
index fa2196990f84..d1977d84ebdf 100644
--- a/include/linux/vtime.h
+++ b/include/linux/vtime.h
@@ -14,6 +14,18 @@ struct task_struct;
*/
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
static inline bool vtime_accounting_cpu_enabled(void) { return true; }
+
+#ifdef __ARCH_HAS_VTIME_ACCOUNT
+extern void vtime_account_irq_enter(struct task_struct *tsk);
+#else
+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_cpu_enabled())
+ vtime_common_account_irq_enter(tsk);
+}
+#endif /* __ARCH_HAS_VTIME_ACCOUNT */
+
#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
@@ -64,17 +76,6 @@ extern void vtime_account_system(struct task_struct *tsk);
extern void vtime_account_idle(struct task_struct *tsk);
extern void vtime_account_user(struct task_struct *tsk);
-#ifdef __ARCH_HAS_VTIME_ACCOUNT
-extern void vtime_account_irq_enter(struct task_struct *tsk);
-#else
-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_cpu_enabled())
- vtime_common_account_irq_enter(tsk);
-}
-#endif /* __ARCH_HAS_VTIME_ACCOUNT */
-
#else /* !CONFIG_VIRT_CPU_ACCOUNTING */
static inline void vtime_task_switch(struct task_struct *prev) { }
@@ -85,13 +86,8 @@ static inline void vtime_account_irq_enter(struct task_struct *tsk) { }
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
extern void arch_vtime_task_switch(struct task_struct *tsk);
-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_cpu_enabled())
- vtime_gen_account_irq_exit(tsk);
-}
+static inline void vtime_account_irq_enter(struct task_struct *tsk) { }
+static inline void vtime_account_irq_exit(struct task_struct *tsk) { }
extern void vtime_user_enter(struct task_struct *tsk);
diff --git a/init/Kconfig b/init/Kconfig
index c02d89777713..787dd76acf29 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -375,9 +375,11 @@ config VIRT_CPU_ACCOUNTING_GEN
If unsure, say N.
+endchoice
+
config IRQ_TIME_ACCOUNTING
bool "Fine granularity task level IRQ time accounting"
- depends on HAVE_IRQ_TIME_ACCOUNTING && !NO_HZ_FULL
+ depends on HAVE_IRQ_TIME_ACCOUNTING && !VIRT_CPU_ACCOUNTING_NATIVE
help
Select this option to enable fine granularity task irq time
accounting. This is done by reading a timestamp on each
@@ -386,8 +388,6 @@ config IRQ_TIME_ACCOUNTING
If in doubt, say N here.
-endchoice
-
config BSD_PROCESS_ACCT
bool "BSD Process Accounting"
depends on MULTIUSER
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index db82ae12cf01..ca7e33cb0967 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -711,14 +711,14 @@ static cputime_t vtime_delta(struct task_struct *tsk)
static cputime_t get_vtime_delta(struct task_struct *tsk)
{
unsigned long now = READ_ONCE(jiffies);
- cputime_t delta, steal;
+ cputime_t delta, other;
delta = jiffies_to_cputime(now - tsk->vtime_snap);
- steal = steal_account_process_time(delta);
+ other = account_other_time(delta);
WARN_ON_ONCE(tsk->vtime_snap_whence == VTIME_INACTIVE);
tsk->vtime_snap = now;
- return delta - steal;
+ return delta - other;
}
static void __vtime_account_system(struct task_struct *tsk)
@@ -738,16 +738,6 @@ void vtime_account_system(struct task_struct *tsk)
write_seqcount_end(&tsk->vtime_seqcount);
}
-void vtime_gen_account_irq_exit(struct task_struct *tsk)
-{
- write_seqcount_begin(&tsk->vtime_seqcount);
- if (vtime_delta(tsk))
- __vtime_account_system(tsk);
- if (context_tracking_in_user())
- tsk->vtime_snap_whence = VTIME_USER;
- write_seqcount_end(&tsk->vtime_seqcount);
-}
-
void vtime_account_user(struct task_struct *tsk)
{
cputime_t delta_cpu;