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ocfs2: Add ocfs2_trace.h.

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About one year ago, Wengang Wang tried some first steps
to add tracepoints to ocfs2. Hiss original patch is here:
http://oss.oracle.com/pipermail/ocfs2-devel/2009-November/005512.html

But as Steven Rostedt indicated in his article
http://lwn.net/Articles/383362/, we'd better have our trace
files resides in fs/ocfs2, so I rewrited the patch using the
method Steven mentioned in that article.

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
This commit is contained in:
Wengang Wang 2011-02-21 11:13:14 +08:00 committed by Tao Ma
parent c1e8d35ef5
commit 80a9a84da3
2 changed files with 19 additions and 0 deletions
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16
fs/ocfs2/ocfs2_trace.h Normal file
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@ -0,0 +1,16 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM ocfs2
#if !defined(_TRACE_OCFS2_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_OCFS2_H
#include <linux/tracepoint.h>
#endif /* _TRACE_OCFS2_H */
/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE ocfs2_trace
#include <trace/define_trace.h>

3
fs/ocfs2/super.c
View File

@ -42,6 +42,9 @@
#include <linux/seq_file.h> #include <linux/seq_file.h>
#include <linux/quotaops.h> #include <linux/quotaops.h>
#define CREATE_TRACE_POINTS
#include "ocfs2_trace.h"
#define MLOG_MASK_PREFIX ML_SUPER #define MLOG_MASK_PREFIX ML_SUPER
#include <cluster/masklog.h> #include <cluster/masklog.h>