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tracing: Give event triggers access to ring_buffer_event

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The ring_buffer event can provide a timestamp that may be useful to
various triggers - pass it into the handlers for that purpose.

Link: http://lkml.kernel.org/r/6de592683b59fa70ffa5d43d0109896623fc1367.1516069914.git.tom.zanussi@linux.intel.com

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Tom Zanussi
2018-01-15 20:51:42 -06:00
committed by Steven Rostedt (VMware)
parent 2c1ea60b19
commit 1ac4f51c0e
4 changed files with 49 additions and 32 deletions
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9
kernel/trace/trace.h
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@@ -1294,7 +1294,7 @@ __event_trigger_test_discard(struct trace_event_file *file,
unsigned long eflags = file->flags;
if (eflags & EVENT_FILE_FL_TRIGGER_COND)
*tt = event_triggers_call(file, entry);
*tt = event_triggers_call(file, entry, event);
if (test_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &file->flags) ||
(unlikely(file->flags & EVENT_FILE_FL_FILTERED) &&
@@ -1331,7 +1331,7 @@ event_trigger_unlock_commit(struct trace_event_file *file,
trace_buffer_unlock_commit(file->tr, buffer, event, irq_flags, pc);
if (tt)
event_triggers_post_call(file, tt, entry);
event_triggers_post_call(file, tt, entry, event);
}
/**
@@ -1364,7 +1364,7 @@ event_trigger_unlock_commit_regs(struct trace_event_file *file,
irq_flags, pc, regs);
if (tt)
event_triggers_post_call(file, tt, entry);
event_triggers_post_call(file, tt, entry, event);
}
#define FILTER_PRED_INVALID ((unsigned short)-1)
@@ -1589,7 +1589,8 @@ extern int register_trigger_hist_enable_disable_cmds(void);
*/
struct event_trigger_ops {
void (*func)(struct event_trigger_data *data,
void *rec);
void *rec,
struct ring_buffer_event *rbe);
int (*init)(struct event_trigger_ops *ops,
struct event_trigger_data *data);
void (*free)(struct event_trigger_ops *ops,