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| author | Thomas Gleixner <tglx@linutronix.de> | 2017-08-28 08:47:33 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-29 11:42:29 +0200 |
| commit | 809547472edae0bc68f2b5abc37b92c8a988bc8a (patch) | |
| tree | e2950f22635cbb3a075239d0f4893eead384eac9 /arch/x86/include/asm/trace/exceptions.h | |
| parent | 6f54f3ec6c5d866c0517e9cf444bed762c2a05b7 (diff) | |
| download | op-kernel-dev-809547472edae0bc68f2b5abc37b92c8a988bc8a.zip op-kernel-dev-809547472edae0bc68f2b5abc37b92c8a988bc8a.tar.gz | |
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>
Diffstat (limited to 'arch/x86/include/asm/trace/exceptions.h')
| -rw-r--r-- | arch/x86/include/asm/trace/exceptions.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/include/asm/trace/exceptions.h b/arch/x86/include/asm/trace/exceptions.h index 960a5b5..5665bf2 100644 --- a/arch/x86/include/asm/trace/exceptions.h +++ b/arch/x86/include/asm/trace/exceptions.h @@ -7,6 +7,9 @@ #include <linux/tracepoint.h> #include <asm/trace/common.h> +extern int trace_pagefault_reg(void); +extern void trace_pagefault_unreg(void); + DECLARE_EVENT_CLASS(x86_exceptions, TP_PROTO(unsigned long address, struct pt_regs *regs, @@ -35,8 +38,7 @@ DEFINE_EVENT_FN(x86_exceptions, name, \ TP_PROTO(unsigned long address, struct pt_regs *regs, \ unsigned long error_code), \ TP_ARGS(address, regs, error_code), \ - trace_irq_vector_regfunc, \ - trace_irq_vector_unregfunc); + trace_pagefault_reg, trace_pagefault_unreg); DEFINE_PAGE_FAULT_EVENT(page_fault_user); DEFINE_PAGE_FAULT_EVENT(page_fault_kernel); |
