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trace: Add trace_ipi_send_cpu()

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Because copying cpumasks around when targeting a single CPU is a bit
daft...

Tested-and-reviewed-by: Valentin Schneider <vschneid@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230322103004.GA571242%40hirez.programming.kicks-ass.net
This commit is contained in:
Peter Zijlstra
2023-03-22 11:28:36 +01:00
parent 68f4ff04db
commit 68e2d17c9e
5 changed files with 30 additions and 9 deletions
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6
kernel/irq_work.c
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@@ -78,10 +78,8 @@ void __weak arch_irq_work_raise(void)
static __always_inline void irq_work_raise(struct irq_work *work)
{
if (trace_ipi_send_cpumask_enabled() && arch_irq_work_has_interrupt())
trace_ipi_send_cpumask(cpumask_of(smp_processor_id()),
_RET_IP_,
work->func);
if (trace_ipi_send_cpu_enabled() && arch_irq_work_has_interrupt())
trace_ipi_send_cpu(smp_processor_id(), _RET_IP_, work->func);
arch_irq_work_raise();
}