Re: [RFC PATCH v2 6/8] treewide: Trace IPIs sent via smp_send_reschedule()
From: Peter Zijlstra <peterz@infradead.org>
Date: 2022-11-17 09:13:25
Also in:
linux-alpha, linux-arm-kernel, linux-mips, linux-riscv, linux-s390, linux-sh, lkml, loongarch, sparclinux
On Wed, Nov 02, 2022 at 06:33:34PM +0000, Valentin Schneider wrote:
quoted hunk ↗ jump to hunk
diff --git a/kernel/smp.c b/kernel/smp.c index c4d561cf50d45..44fa4b9b1f46b 100644 --- a/kernel/smp.c +++ b/kernel/smp.c@@ -167,6 +167,14 @@ send_call_function_ipi_mask(const struct cpumask *mask) arch_send_call_function_ipi_mask(mask); } +void smp_send_reschedule(int cpu) +{ + /* XXX scheduler_ipi is inline :/ */ + trace_ipi_send_cpumask(cpumask_of(cpu), _RET_IP_, NULL); + arch_smp_send_reschedule(cpu); +} +EXPORT_SYMBOL_GPL(smp_send_reschedule);
Yeah, no.. I see some crazy archs do this, but no we're not exporting this in generic.