diff options
| -rw-r--r-- | arch/x86/include/asm/intel_rdt_sched.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/x86/include/asm/intel_rdt_sched.h b/arch/x86/include/asm/intel_rdt_sched.h index 2c704d205e2f..8c5be0117457 100644 --- a/arch/x86/include/asm/intel_rdt_sched.h +++ b/arch/x86/include/asm/intel_rdt_sched.h @@ -27,10 +27,12 @@ struct intel_pqr_state { DECLARE_PER_CPU(struct intel_pqr_state, pqr_state); DECLARE_PER_CPU_READ_MOSTLY(struct intel_pqr_state, rdt_cpu_default); + +DECLARE_STATIC_KEY_FALSE(rdt_enable_key); DECLARE_STATIC_KEY_FALSE(rdt_alloc_enable_key); /* - * intel_rdt_sched_in() - Writes the task's CLOSid to IA32_PQR_MSR + * __intel_rdt_sched_in() - Writes the task's CLOSid to IA32_PQR_MSR * * Following considerations are made so that this has minimal impact * on scheduler hot path: @@ -42,7 +44,7 @@ DECLARE_STATIC_KEY_FALSE(rdt_alloc_enable_key); * * Must be called with preemption disabled. */ -static inline void intel_rdt_sched_in(void) +static inline void __intel_rdt_sched_in(void) { if (static_branch_likely(&rdt_alloc_enable_key)) { struct intel_pqr_state *state = this_cpu_ptr(&pqr_state); @@ -63,6 +65,12 @@ static inline void intel_rdt_sched_in(void) } } +static inline void intel_rdt_sched_in(void) +{ + if (static_branch_likely(&rdt_enable_key)) + __intel_rdt_sched_in(); +} + #else static inline void intel_rdt_sched_in(void) {} |