sched/x86: Export 'percpu arch_freq_scale'

auldp · Ingo Molnar · commit d40605a68235 · 2024-05-31T11:48:42.000+02:00
Commit: 7bc2638 ("sched/topology: Consolidate and clean up access to a CPU's max compute capacity") removed rq->cpu_capacity_orig in favor of using arch_scale_freq_capacity() calls. Export the underlying percpu symbol on x86 so that external trace point helper modules can be made to work again. Signed-off-by: Phil Auld <pauld@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240530181548.2039216-1-pauld@redhat.com
diff --git a/arch/x86/kernel/cpu/aperfmperf.c b/arch/x86/kernel/cpu/aperfmperf.c
@@ -345,6 +345,7 @@ static DECLARE_WORK(disable_freq_invariance_work,
 		    disable_freq_invariance_workfn);
 
 DEFINE_PER_CPU(unsigned long, arch_freq_scale) = SCHED_CAPACITY_SCALE;
+EXPORT_PER_CPU_SYMBOL_GPL(arch_freq_scale);
 
 static void scale_freq_tick(u64 acnt, u64 mcnt)
 {

Original file line number	Diff line number	Diff line change
`@@ -345,6 +345,7 @@ static DECLARE_WORK(disable_freq_invariance_work,`
`345`	`345`	`disable_freq_invariance_workfn);`
`346`	`346`
`347`	`347`	`DEFINE_PER_CPU(unsigned long, arch_freq_scale) = SCHED_CAPACITY_SCALE;`
	`348`	`+EXPORT_PER_CPU_SYMBOL_GPL(arch_freq_scale);`
`348`	`349`
`349`	`350`	`static void scale_freq_tick(u64 acnt, u64 mcnt)`
`350`	`351`	`{`