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| author |   He Kuang <hekuang@huawei.com> | 2015-03-03 15:21:33 +0800 |
|---|---|---|
| committer |   Steven Rostedt <rostedt@goodmis.org> | 2015-03-25 08:57:23 -0400 |
| commit | 754cb0071a5c9576ccfa6523969ef6a2f6a71676 (patch) | |
| tree | 087ce75c5e9e887584d1ce3051fdd5a9e2401e7b /kernel/trace | |
| parent | tracing: %pF is only for function pointers (diff) | |
| download | linux-dev-754cb0071a5c9576ccfa6523969ef6a2f6a71676.tar.xz linux-dev-754cb0071a5c9576ccfa6523969ef6a2f6a71676.zip | |
tracing: remove ftrace:function TRACE_EVENT_FL_USE_CALL_FILTER flag
TRACE_EVENT_FL_USE_CALL_FILTER flag in ftrace:functon event can be
removed. This flag was first introduced in commit
f306cc82a93d ("tracing: Update event filters for multibuffer").
Now, the only place uses this flag is ftrace:function, but the filter of
ftrace:function has a different code path with events/syscalls and
events/tracepoints. It uses ftrace_filter_write() and perf's
ftrace_profile_set_filter() to set the filter, the functionality of file
'tracing/events/ftrace/function/filter' is bypassed in function
init_pred(), in which case, neither call->filter nor file->filter is
used.
So we can safely remove TRACE_EVENT_FL_USE_CALL_FILTER flag from
ftrace:function events.
Link: http://lkml.kernel.org/r/1425367294-27852-1-git-send-email-hekuang@huawei.com
Signed-off-by: He Kuang <hekuang@huawei.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace_export.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c index 12e2b99be862..174a6a71146c 100644 --- a/kernel/trace/trace_export.c +++ b/kernel/trace/trace_export.c @@ -177,7 +177,7 @@ struct ftrace_event_call __used event_##call = { \ }, \ .event.type = etype, \ .print_fmt = print, \ - .flags = TRACE_EVENT_FL_IGNORE_ENABLE | TRACE_EVENT_FL_USE_CALL_FILTER, \ + .flags = TRACE_EVENT_FL_IGNORE_ENABLE, \ }; \ struct ftrace_event_call __used \ __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call; |