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| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-03-16 12:41:03 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-03-18 12:58:26 -0400 |
| commit | b47e330231acbf4506b049643145cc64268a1940 (patch) | |
| tree | 21504891aad81b71e9dcb3afc2f2b9ed6f193aed /include | |
| parent | 8672e4948d0c44272cc05f8ff563dbf6b6c1289f (diff) | |
| download | linux-stable-b47e330231acbf4506b049643145cc64268a1940.tar.gz linux-stable-b47e330231acbf4506b049643145cc64268a1940.tar.bz2 linux-stable-b47e330231acbf4506b049643145cc64268a1940.zip | |
tracing: Pass buffer of event to trigger operations
The ring_buffer_event_time_stamp() is going to be updated to extract the
time stamp for the event without needing it to be set to have absolute
values for all events. But to do so, it needs the buffer that the event is
on as the buffer saves information for the event before it is committed to
the buffer.
If the trace buffer is disabled, a temporary buffer is used, and there's
no access to this buffer from the current histogram triggers, even though
it is passed to the trace event code.
Pass the buffer that the event is on all the way down to the histogram
triggers.
Link: https://lkml.kernel.org/r/20210316164113.542448131@goodmis.org
Reviewed-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/trace_events.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h index 28e7af1406f2..8cba64ce23a4 100644 --- a/include/linux/trace_events.h +++ b/include/linux/trace_events.h @@ -640,7 +640,8 @@ enum event_trigger_type { extern int filter_match_preds(struct event_filter *filter, void *rec); extern enum event_trigger_type -event_triggers_call(struct trace_event_file *file, void *rec, +event_triggers_call(struct trace_event_file *file, + struct trace_buffer *buffer, void *rec, struct ring_buffer_event *event); extern void event_triggers_post_call(struct trace_event_file *file, @@ -664,7 +665,7 @@ trace_trigger_soft_disabled(struct trace_event_file *file) if (!(eflags & EVENT_FILE_FL_TRIGGER_COND)) { if (eflags & EVENT_FILE_FL_TRIGGER_MODE) - event_triggers_call(file, NULL, NULL); + event_triggers_call(file, NULL, NULL, NULL); if (eflags & EVENT_FILE_FL_SOFT_DISABLED) return true; if (eflags & EVENT_FILE_FL_PID_FILTER) |