Files
msm-5.15/include/linux
Steven Rostedt (Red Hat) 7904b5c498 tracepoint: Give priority to probes of tracepoints
In order to guarantee that a probe will be called before other probes that
are attached to a tracepoint, there needs to be a mechanism to provide
priority of one probe over the others.

Adding a prio field to the struct tracepoint_func, which lets the probes be
sorted by the priority set in the structure. If no priority is specified,
then a priority of 10 is given (this is a macro, and perhaps may be changed
in the future).

Now probes may be added to affect other probes that are attached to a
tracepoint with a guaranteed order.

One use case would be to allow tracing of tracepoints be able to filter by
pid. A special (higher priority probe) may be added to the sched_switch
tracepoint and set the necessary flags of the other tracepoints to notify
them if they should be traced or not. In case a tracepoint is enabled at the
sched_switch tracepoint too, the order of the two are not random.

Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-10-25 21:33:54 -04:00
..
2015-06-25 11:49:31 +03:00
2015-05-13 12:04:55 -05:00
2015-03-25 20:28:11 -04:00
2015-08-03 12:01:54 -04:00
2015-08-06 16:17:25 -04:00
2015-06-01 14:35:56 -06:00
2015-09-04 16:54:41 -07:00
2015-09-08 15:35:28 -07:00
2015-08-20 10:20:11 +03:00
2015-06-24 17:49:45 -07:00
2015-07-17 08:41:53 -06:00
2015-05-12 10:46:53 +02:00
2015-06-01 14:33:35 +02:00
2015-06-19 15:18:28 +02:00
2015-09-08 15:35:28 -07:00
2015-09-08 15:35:28 -07:00
2015-03-16 21:45:54 +11:00
2015-05-05 13:40:42 -06:00
2015-08-27 19:40:58 -04:00
2015-06-25 12:06:45 +02:00
2015-08-18 15:49:15 -07:00
2015-07-28 08:50:42 +01:00
2015-09-06 16:27:10 +02:00
2015-04-29 17:17:17 -05:00
2015-04-14 16:49:05 -07:00
2015-06-24 17:49:41 -07:00
2015-07-21 10:39:05 -07:00
2015-06-25 04:20:04 -04:00
2015-08-17 13:32:56 -05:00
2015-08-18 11:56:13 -06:00
2015-03-11 17:56:28 -04:00
2015-09-10 13:29:01 -07:00
2015-09-10 13:29:01 -07:00
2015-09-10 13:29:01 -07:00
2015-09-08 15:35:28 -07:00
2015-04-12 21:03:31 +02:00
2015-06-19 01:18:14 +02:00
2015-08-17 15:40:20 +02:00
2015-06-10 19:14:04 +08:00
2015-05-27 12:58:04 -07:00
2015-05-26 15:23:23 +02:00
2015-06-25 01:13:43 +02:00
2015-04-11 15:53:35 -04:00
2015-06-25 17:00:40 -07:00
2015-06-25 17:00:39 -07:00
2015-08-17 11:25:28 -07:00
2015-07-22 15:27:29 -07:00
2015-08-28 16:27:27 -07:00
2015-04-11 22:29:44 -04:00
2015-06-12 17:26:57 -07:00
2015-03-24 09:48:14 -07:00
2015-09-08 15:35:28 -07:00
2015-09-10 13:29:01 -07:00