x86/tlb/trace: Export enums in used by tlb_flush tracepoint
Have the enums used in __print_symbolic() by the trace_tlb_flush() tracepoint exported to userpace such that they can be parsed by userspace tools. Link: http://lkml.kernel.org/r/20150403013802.220157513@goodmis.org Cc: Dave Hansen <dave@sr71.net> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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@ -7,11 +7,31 @@
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#include <linux/mm_types.h>
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#include <linux/tracepoint.h>
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#define TLB_FLUSH_REASON \
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{ TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" }, \
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{ TLB_REMOTE_SHOOTDOWN, "remote shootdown" }, \
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{ TLB_LOCAL_SHOOTDOWN, "local shootdown" }, \
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{ TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" }
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#define TLB_FLUSH_REASON \
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EM( TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" ) \
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EM( TLB_REMOTE_SHOOTDOWN, "remote shootdown" ) \
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EM( TLB_LOCAL_SHOOTDOWN, "local shootdown" ) \
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EMe( TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" )
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/*
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* First define the enums in TLB_FLUSH_REASON to be exported to userspace
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* via TRACE_DEFINE_ENUM().
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*/
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#undef EM
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#undef EMe
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#define EM(a,b) TRACE_DEFINE_ENUM(a);
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#define EMe(a,b) TRACE_DEFINE_ENUM(a);
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TLB_FLUSH_REASON
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/*
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* Now redefine the EM() and EMe() macros to map the enums to the strings
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* that will be printed in the output.
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*/
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#undef EM
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#undef EMe
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#define EM(a,b) { a, b },
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#define EMe(a,b) { a, b }
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TRACE_EVENT_CONDITION(tlb_flush,
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