diff options
| author | Valentin Schneider <vschneid@redhat.com> | 2023-03-07 14:35:54 +0000 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-03-24 11:01:27 +0100 |
| commit | 08407b5f61c1bbd4ebb26a76474df4354fd76fb7 (patch) | |
| tree | 9843d04cf9849590a21259e2db2002288e271717 /kernel/smp.c | |
| parent | cc9cb0a71725aa8dd8d8f534a9b562bbf7981f75 (diff) | |
| download | linux-08407b5f61c1bbd4ebb26a76474df4354fd76fb7.tar.gz linux-08407b5f61c1bbd4ebb26a76474df4354fd76fb7.tar.bz2 linux-08407b5f61c1bbd4ebb26a76474df4354fd76fb7.zip | |
smp: Trace IPIs sent via arch_send_call_function_ipi_mask()
This simply wraps around the arch function and prepends it with a
tracepoint, similar to send_call_function_single_ipi().
Signed-off-by: Valentin Schneider <vschneid@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20230307143558.294354-4-vschneid@redhat.com
Diffstat (limited to 'kernel/smp.c')
| -rw-r--r-- | kernel/smp.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/smp.c b/kernel/smp.c index 770e879a7274..03e6d576295d 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -103,6 +103,13 @@ void __init call_function_init(void) smpcfd_prepare_cpu(smp_processor_id()); } +static __always_inline void +send_call_function_ipi_mask(struct cpumask *mask) +{ + trace_ipi_send_cpumask(mask, _RET_IP_, NULL); + arch_send_call_function_ipi_mask(mask); +} + #ifdef CONFIG_CSD_LOCK_WAIT_DEBUG static DEFINE_STATIC_KEY_MAYBE(CONFIG_CSD_LOCK_WAIT_DEBUG_DEFAULT, csdlock_debug_enabled); @@ -762,7 +769,7 @@ static void smp_call_function_many_cond(const struct cpumask *mask, if (nr_cpus == 1) send_call_function_single_ipi(last_cpu); else if (likely(nr_cpus > 1)) - arch_send_call_function_ipi_mask(cfd->cpumask_ipi); + send_call_function_ipi_mask(cfd->cpumask_ipi); } if (run_local && (!cond_func || cond_func(this_cpu, info))) { |