x86/tracing: Disentangle pagefault and resched IPI tracing key
The pagefault and the resched IPI handler are the only ones where it is
worth to optimize the code further in case tracepoints are disabled. But it
makes no sense to have a single static key for both.
Seperate the static keys so the facilities are handled seperately.
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/20170828064957.536699116@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 58d7b3a..f9bb660 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -1510,7 +1510,7 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
enum ctx_state prev_state;
prev_state = exception_enter();
- if (trace_irqvectors_enabled())
+ if (trace_pagefault_enabled())
trace_page_fault_entries(address, regs, error_code);
__do_page_fault(regs, error_code, address);