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| author | Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> | 2008-11-15 01:47:47 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-16 11:01:36 +0300 |
| commit | 7e066fb870fcd1025ec3ba7bbde5d541094f4ce1 (patch) | |
| tree | 52acda06de25c029b9834110d7bf6b4abc50353b /samples/tracepoints/tracepoint-sample.c | |
| parent | 32f85742778dfc2c74975cf0b9f5bdb13470cb32 (diff) | |
| download | linux-7e066fb870fcd1025ec3ba7bbde5d541094f4ce1.tar.xz | |
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/tracepoint-sample.c')
| -rw-r--r-- | samples/tracepoints/tracepoint-sample.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/samples/tracepoints/tracepoint-sample.c b/samples/tracepoints/tracepoint-sample.c index 4ae4b7fcc043..00d169792a3e 100644 --- a/samples/tracepoints/tracepoint-sample.c +++ b/samples/tracepoints/tracepoint-sample.c @@ -13,6 +13,9 @@ #include <linux/proc_fs.h> #include "tp-samples-trace.h" +DEFINE_TRACE(subsys_event); +DEFINE_TRACE(subsys_eventb); + struct proc_dir_entry *pentry_example; static int my_open(struct inode *inode, struct file *file) |