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authorMathieu Desnoyers <mathieu.desnoyers@polymtl.ca>2008-11-14 17:47:47 -0500
committerIngo Molnar <mingo@elte.hu>2008-11-16 03:01:36 -0500
commit7e066fb870fcd1025ec3ba7bbde5d541094f4ce1 (patch)
tree52acda06de25c029b9834110d7bf6b4abc50353b /samples/tracepoints/tp-samples-trace.h
parent32f85742778dfc2c74975cf0b9f5bdb13470cb32 (diff)
tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()
Impact: API *CHANGE*. Must update all tracepoint users. Add DEFINE_TRACE() to tracepoints to let them declare the tracepoint structure in a single spot for all the kernel. It helps reducing memory consumption, especially when declaring a lot of tracepoints, e.g. for kmalloc tracing. *API CHANGE WARNING*: now, DECLARE_TRACE() must be used in headers for tracepoint declarations rather than DEFINE_TRACE(). This is the sane way to do it. The name previously used was misleading. Updates scheduler instrumentation to follow this API change. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'samples/tracepoints/tp-samples-trace.h')
-rw-r--r--samples/tracepoints/tp-samples-trace.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/samples/tracepoints/tp-samples-trace.h b/samples/tracepoints/tp-samples-trace.h
index 0216b55bd640..01724e04c556 100644
--- a/samples/tracepoints/tp-samples-trace.h
+++ b/samples/tracepoints/tp-samples-trace.h
@@ -4,10 +4,10 @@
4#include <linux/proc_fs.h> /* for struct inode and struct file */ 4#include <linux/proc_fs.h> /* for struct inode and struct file */
5#include <linux/tracepoint.h> 5#include <linux/tracepoint.h>
6 6
7DEFINE_TRACE(subsys_event, 7DECLARE_TRACE(subsys_event,
8 TPPROTO(struct inode *inode, struct file *file), 8 TPPROTO(struct inode *inode, struct file *file),
9 TPARGS(inode, file)); 9 TPARGS(inode, file));
10DEFINE_TRACE(subsys_eventb, 10DECLARE_TRACE(subsys_eventb,
11 TPPROTO(void), 11 TPPROTO(void),
12 TPARGS()); 12 TPARGS());
13#endif 13#endif