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authorJiri Olsa <jolsa@redhat.com>2012-01-02 10:04:14 +0100
committerSteven Rostedt <rostedt@goodmis.org>2012-02-03 09:48:18 -0500
commitac483c446b67870444c9eeaf8325d3d2af9b91bc (patch)
treee2765af4acf86ce986856b2963036138ae077d58 /include
parent623ec991ce0e8cd5791bad656c162fa837635907 (diff)
ftrace: Change filter/notrace set functions to return exit code
Currently the ftrace_set_filter and ftrace_set_notrace functions do not return any return code. So there's no way for ftrace_ops user to tell wether the filter was correctly applied. The set_ftrace_filter interface returns error in case the filter did not match: # echo krava > set_ftrace_filter bash: echo: write error: Invalid argument Changing both ftrace_set_filter and ftrace_set_notrace functions to return zero if the filter was applied correctly or -E* values in case of error. Link: http://lkml.kernel.org/r/1325495060-6402-2-git-send-email-jolsa@redhat.com Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/ftrace.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 028e26f0bf08..f33fb3b041c6 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -178,9 +178,9 @@ struct dyn_ftrace {
};
int ftrace_force_update(void);
-void ftrace_set_filter(struct ftrace_ops *ops, unsigned char *buf,
+int ftrace_set_filter(struct ftrace_ops *ops, unsigned char *buf,
int len, int reset);
-void ftrace_set_notrace(struct ftrace_ops *ops, unsigned char *buf,
+int ftrace_set_notrace(struct ftrace_ops *ops, unsigned char *buf,
int len, int reset);
void ftrace_set_global_filter(unsigned char *buf, int len, int reset);
void ftrace_set_global_notrace(unsigned char *buf, int len, int reset);