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sched/cputime: Remove symbol exports from IRQ time accounting

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account_irq_enter_time() and account_irq_exit_time() are not called
from modules. EXPORT_SYMBOL_GPL() can be safely removed from the IRQ
cputime accounting functions called from there.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201202115732.27827-2-frederic@kernel.org
This commit is contained in:
Frederic Weisbecker 2020-12-02 12:57:28 +01:00 committed by Thomas Gleixner
parent 4615fbc378
commit 7197688b20
2 changed files with 5 additions and 7 deletions
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10
arch/s390/kernel/vtime.c
View File

@ -226,7 +226,7 @@ void vtime_flush(struct task_struct *tsk)
* Update process times based on virtual cpu times stored by entry.S * Update process times based on virtual cpu times stored by entry.S
* to the lowcore fields user_timer, system_timer & steal_clock. * to the lowcore fields user_timer, system_timer & steal_clock.
*/ */
void vtime_account_irq_enter(struct task_struct *tsk) void vtime_account_kernel(struct task_struct *tsk)
{ {
u64 timer; u64 timer;
@ -245,12 +245,12 @@ void vtime_account_irq_enter(struct task_struct *tsk)
virt_timer_forward(timer); virt_timer_forward(timer);
} }
EXPORT_SYMBOL_GPL(vtime_account_irq_enter);
void vtime_account_kernel(struct task_struct *tsk)
__attribute__((alias("vtime_account_irq_enter")));
EXPORT_SYMBOL_GPL(vtime_account_kernel); EXPORT_SYMBOL_GPL(vtime_account_kernel);
void vtime_account_irq_enter(struct task_struct *tsk)
__attribute__((alias("vtime_account_kernel")));
/* /*
* Sorted add to a list. List is linear searched until first bigger * Sorted add to a list. List is linear searched until first bigger
* element is found. * element is found.

2
kernel/sched/cputime.c
View File

@ -71,7 +71,6 @@ void irqtime_account_irq(struct task_struct *curr)
else if (in_serving_softirq() && curr != this_cpu_ksoftirqd()) else if (in_serving_softirq() && curr != this_cpu_ksoftirqd())
irqtime_account_delta(irqtime, delta, CPUTIME_SOFTIRQ); irqtime_account_delta(irqtime, delta, CPUTIME_SOFTIRQ);
} }
EXPORT_SYMBOL_GPL(irqtime_account_irq);
static u64 irqtime_tick_accounted(u64 maxtime) static u64 irqtime_tick_accounted(u64 maxtime)
{ {
@ -434,7 +433,6 @@ void vtime_account_irq_enter(struct task_struct *tsk)
else else
vtime_account_kernel(tsk); vtime_account_kernel(tsk);
} }
EXPORT_SYMBOL_GPL(vtime_account_irq_enter);
#endif /* __ARCH_HAS_VTIME_ACCOUNT */ #endif /* __ARCH_HAS_VTIME_ACCOUNT */
void cputime_adjust(struct task_cputime *curr, struct prev_cputime *prev, void cputime_adjust(struct task_cputime *curr, struct prev_cputime *prev,