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| author |   Frederic Weisbecker <frederic@kernel.org> | 2020-12-02 12:57:30 +0100 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2020-12-02 20:20:05 +0100 |
| commit | 8a6a5920d3286eb0eae9f36a4ec4fc9df511eccb (patch) | |
| tree | f4ac64d3a1a6b8d3fe72162d7f88596afacb638f /kernel/sched | |
| parent | s390/vtime: Use the generic IRQ entry accounting (diff) | |
| download | linux-dev-8a6a5920d3286eb0eae9f36a4ec4fc9df511eccb.tar.xz linux-dev-8a6a5920d3286eb0eae9f36a4ec4fc9df511eccb.zip | |
sched/vtime: Consolidate IRQ time accounting
The 3 architectures implementing CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
all have their own version of irq time accounting that dispatch the
cputime to the appropriate index: hardirq, softirq, system, idle,
guest... from an all-in-one function.
Instead of having these ad-hoc versions, move the cputime destination
dispatch decision to the core code and leave only the actual per-index
cputime accounting to the architecture.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201202115732.27827-4-frederic@kernel.org
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/cputime.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index 2783162542b1..02163d4260d7 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -417,13 +417,18 @@ void vtime_task_switch(struct task_struct *prev) } # endif -void vtime_account_irq_enter(struct task_struct *tsk) +void vtime_account_irq(struct task_struct *tsk) { - if (!IS_ENABLED(CONFIG_HAVE_VIRT_CPU_ACCOUNTING_IDLE) && - !in_interrupt() && is_idle_task(tsk)) + if (hardirq_count()) { + vtime_account_hardirq(tsk); + } else if (in_serving_softirq()) { + vtime_account_softirq(tsk); + } else if (!IS_ENABLED(CONFIG_HAVE_VIRT_CPU_ACCOUNTING_IDLE) && + is_idle_task(tsk)) { vtime_account_idle(tsk); - else + } else { vtime_account_kernel(tsk); + } } void cputime_adjust(struct task_cputime *curr, struct prev_cputime *prev, |