diff options
| author | Frederic Weisbecker <frederic@kernel.org> | 2026-05-08 16:16:36 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@kernel.org> | 2026-06-02 22:27:25 +0300 |
| commit | 650a59805a9baeff76379ea9309df1395eb15a46 (patch) | |
| tree | e1487191b6cda3a6f2d70274b475199f65159d77 /include/linux | |
| parent | 080b5c6d95034e46f5ed1abe98c06218a1386aef (diff) | |
| download | linux-650a59805a9baeff76379ea9309df1395eb15a46.tar.xz | |
sched/cputime: Correctly support generic vtime idle time
Currently whether generic vtime is running or not, the idle cputime is
fetched from the nohz accounting.
However generic vtime already does its own idle cputime accounting. Only
the kernel stat accessors are not plugged to support it.
Read the idle generic vtime cputime when it's running, this will allow to
later more clearly split nohz and vtime cputime accounting.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Link: https://patch.msgid.link/20260508131647.43868-5-frederic@kernel.org
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/vtime.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/vtime.h b/include/linux/vtime.h index 29dd5b91dd7d..336875bea767 100644 --- a/include/linux/vtime.h +++ b/include/linux/vtime.h @@ -10,7 +10,6 @@ */ #ifdef CONFIG_VIRT_CPU_ACCOUNTING extern void vtime_account_kernel(struct task_struct *tsk); -extern void vtime_account_idle(struct task_struct *tsk); #endif /* !CONFIG_VIRT_CPU_ACCOUNTING */ #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN @@ -27,7 +26,13 @@ static inline void vtime_guest_exit(struct task_struct *tsk) { } static inline void vtime_init_idle(struct task_struct *tsk, int cpu) { } #endif +static inline bool vtime_generic_enabled_cpu(int cpu) +{ + return context_tracking_enabled_cpu(cpu); +} + #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE +extern void vtime_account_idle(struct task_struct *tsk); extern void vtime_account_irq(struct task_struct *tsk, unsigned int offset); extern void vtime_account_softirq(struct task_struct *tsk); extern void vtime_account_hardirq(struct task_struct *tsk); @@ -74,7 +79,7 @@ static inline bool vtime_accounting_enabled(void) static inline bool vtime_accounting_enabled_cpu(int cpu) { - return context_tracking_enabled_cpu(cpu); + return vtime_generic_enabled_cpu(cpu); } static inline bool vtime_accounting_enabled_this_cpu(void) |