diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2017-08-28 08:47:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-29 11:42:26 +0200 |
| commit | daabb8eb9a55af90d0a55d93547a51cc6921389f (patch) | |
| tree | 29ec8f6e3fab5b15b201f4184ebdb5d7b0ca9bd4 | |
| parent | x86/apic: Remove the duplicated tracing versions of interrupts (diff) | |
| download | linux-daabb8eb9a55af90d0a55d93547a51cc6921389f.tar.xz linux-daabb8eb9a55af90d0a55d93547a51cc6921389f.zip | |
x86/irqwork: Get rid of duplicated tracing interrupt code
Two NOP5s are a reasonable tradeoff to avoid duplicated code and the
requirement to switch the IDT.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064957.064746737@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/include/asm/hw_irq.h | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/irq_work.c | 16 |
2 files changed, 3 insertions, 15 deletions
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h index b094b877b294..fd7e7e67ff79 100644 --- a/arch/x86/include/asm/hw_irq.h +++ b/arch/x86/include/asm/hw_irq.h @@ -48,13 +48,13 @@ extern asmlinkage void call_function_single_interrupt(void); #ifdef CONFIG_TRACING /* Interrupt handlers registered during init_IRQ */ -extern void trace_irq_work_interrupt(void); extern void trace_thermal_interrupt(void); extern void trace_reschedule_interrupt(void); extern void trace_threshold_interrupt(void); extern void trace_deferred_error_interrupt(void); extern void trace_call_function_interrupt(void); extern void trace_call_function_single_interrupt(void); +#define trace_irq_work_interrupt irq_work_interrupt #define trace_error_interrupt error_interrupt #define trace_spurious_interrupt spurious_interrupt #define trace_x86_platform_ipi x86_platform_ipi diff --git a/arch/x86/kernel/irq_work.c b/arch/x86/kernel/irq_work.c index 275487872be2..8054caee401f 100644 --- a/arch/x86/kernel/irq_work.c +++ b/arch/x86/kernel/irq_work.c @@ -11,24 +11,12 @@ #include <asm/trace/irq_vectors.h> #include <linux/interrupt.h> -static inline void __smp_irq_work_interrupt(void) -{ - inc_irq_stat(apic_irq_work_irqs); - irq_work_run(); -} - __visible void __irq_entry smp_irq_work_interrupt(struct pt_regs *regs) { ipi_entering_ack_irq(); - __smp_irq_work_interrupt(); - exiting_irq(); -} - -__visible void __irq_entry smp_trace_irq_work_interrupt(struct pt_regs *regs) -{ - ipi_entering_ack_irq(); trace_irq_work_entry(IRQ_WORK_VECTOR); - __smp_irq_work_interrupt(); + inc_irq_stat(apic_irq_work_irqs); + irq_work_run(); trace_irq_work_exit(IRQ_WORK_VECTOR); exiting_irq(); } |