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tracing/events: Move TRACE_SYSTEM outside of include guard

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If TRACE_INCLDUE_FILE is defined, <trace/events/TRACE_INCLUDE_FILE.h>
will be included and compiled, otherwise it will be
<trace/events/TRACE_SYSTEM.h>

So TRACE_SYSTEM should be defined outside of #if proctection,
just like TRACE_INCLUDE_FILE.

Imaging this scenario:

 #include <trace/events/foo.h>
    -> TRACE_SYSTEM == foo
 ...
 #include <trace/events/bar.h>
    -> TRACE_SYSTEM == bar
 ...
 #define CREATE_TRACE_POINTS
 #include <trace/events/foo.h>
    -> TRACE_SYSTEM == bar !!!

and then bar.h will be included and compiled.

Signed-off-by: Li Zefan <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Li Zefan 2009-07-13 10:33:21 +08:00 • committed by Ingo Molnar
commit d0b6e04a4c
11 changed files with 51 additions and 48 deletions
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8
fs/gfs2/trace_gfs2.h
View file

@ -1,12 +1,11 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM gfs2
#if !defined(_TRACE_GFS2_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_GFS2_H
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM gfs2
#define TRACE_INCLUDE_FILE trace_gfs2
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/dlmconstants.h>
@ -403,5 +402,6 @@ TRACE_EVENT(gfs2_block_alloc,
/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE trace_gfs2
#include <trace/define_trace.h>