forked from Minki/linux
809547472e
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>
17 lines
504 B
C
17 lines
504 B
C
#ifndef _ASM_TRACE_COMMON_H
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#define _ASM_TRACE_COMMON_H
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#ifdef CONFIG_TRACING
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DECLARE_STATIC_KEY_FALSE(trace_pagefault_key);
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#define trace_pagefault_enabled() \
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static_branch_unlikely(&trace_pagefault_key)
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DECLARE_STATIC_KEY_FALSE(trace_resched_ipi_key);
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#define trace_resched_ipi_enabled() \
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static_branch_unlikely(&trace_resched_ipi_key)
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#else
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static inline bool trace_pagefault_enabled(void) { return false; }
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static inline bool trace_resched_ipi_enabled(void) { return false; }
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#endif
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#endif
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