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tracing: add filter event logic to special, mmiotrace and boot tracers

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Now that the pluging tracers use macros to create the structures and
automate the exporting of their formats to the format files, they also
automatically get a filter file.

This patch adds the code to implement the filter logic in the trace
recordings.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt
2009-09-12 23:34:04 -04:00
committed by Steven Rostedt
parent 51df5fcbc1
commit 60ba770227
3 changed files with 18 additions and 5 deletions
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8
kernel/trace/trace_boot.c
View File

@@ -129,6 +129,7 @@ struct tracer boot_tracer __read_mostly =
void trace_boot_call(struct boot_trace_call *bt, initcall_t fn)
{
struct ftrace_event_call *call = &event_boot_call;
struct ring_buffer_event *event;
struct ring_buffer *buffer;
struct trace_boot_call *entry;
@@ -150,13 +151,15 @@ void trace_boot_call(struct boot_trace_call *bt, initcall_t fn)
goto out;
entry = ring_buffer_event_data(event);
entry->boot_call = *bt;
trace_buffer_unlock_commit(buffer, event, 0, 0);
if (!filter_check_discard(call, entry, buffer, event))
trace_buffer_unlock_commit(buffer, event, 0, 0);
out:
preempt_enable();
}
void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn)
{
struct ftrace_event_call *call = &event_boot_ret;
struct ring_buffer_event *event;
struct ring_buffer *buffer;
struct trace_boot_ret *entry;
@@ -175,7 +178,8 @@ void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn)
goto out;
entry = ring_buffer_event_data(event);
entry->boot_ret = *bt;
trace_buffer_unlock_commit(buffer, event, 0, 0);
if (!filter_check_discard(call, entry, buffer, event))
trace_buffer_unlock_commit(buffer, event, 0, 0);
out:
preempt_enable();
}