Tom Zanussi
cfb180f3e7
tracing: add per-subsystem filtering ...
This patch adds per-subsystem filtering to the event tracing subsystem.
It adds a 'filter' debugfs file to each subsystem directory. This file
can be written to to set filters; reading from it will display the
current set of filters set for that subsystem.
Basically what it does is propagate the filter down to each event
contained in the subsystem. If a particular event doesn't have a field
with the name specified in the filter, it simply doesn't get set for
that event. You can verify whether or not the filter was set for a
particular event by looking at the filter file for that event.
As with per-event filters, compound expressions are supported, echoing
'0' to the subsystem's filter file clears all filters in the subsystem,
etc.
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <1237710677.7703.49.camel@charm-linux>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-22 18:38:47 +01:00
tracing: protect reader of cmdline output
2009-03-16 23:27:06 -04:00
ftrace: event profile hooks
2009-03-20 10:17:07 +01:00
tracing/ftrace: fix the check on nopped sites
2009-03-16 22:15:36 -04:00
tracing/syscalls: select kallsysms
2009-03-16 09:13:17 +01:00
tracing: Introduce trace_buffer_{lock_reserve,unlock_commit}
2009-02-06 01:01:41 +01:00
tracing: add per-event filtering
2009-03-22 18:38:46 +01:00
tracing: add ring_buffer_event_discard() to ring buffer
2009-03-22 18:38:25 +01:00
tracing/function-graph-tracer: prevent hangs during self-tests
2009-03-22 14:06:40 +01:00
tracing: add per-subsystem filtering
2009-03-22 18:38:47 +01:00
tracing: Introduce trace_buffer_{lock_reserve,unlock_commit}
2009-02-06 01:01:41 +01:00
tracing: remove funky whitespace in the trace code
2009-03-10 14:13:14 -04:00
trace_clock: fix preemption bug
2009-03-10 20:03:01 +01:00
ftrace: event profile hooks
2009-03-20 10:17:07 +01:00
tracing: remove recording function depth from trace_printk
2009-03-19 15:58:47 -04:00
tracing: add per-subsystem filtering
2009-03-22 18:38:47 +01:00
tracing: add per-subsystem filtering
2009-03-22 18:38:47 +01:00
tracing: update comments to match event code macros
2009-03-10 13:12:58 -04:00
tracing: add run-time field descriptions for event filtering
2009-03-22 18:11:22 +01:00
tracing: add per-event filtering
2009-03-22 18:38:46 +01:00
tracing: remove funky whitespace in the trace code
2009-03-10 14:13:14 -04:00
tracing/core: use appropriate waiting on trace_pipe
2009-02-18 01:40:20 +01:00
function-graph: show binary events as comments
2009-03-19 15:58:56 -04:00
tracing/hw-branch-tracing: convert bts-tracer mutex to a spinlock
2009-02-25 09:16:01 +01:00
tracing: have latency tracers set the latency format
2009-03-04 22:15:30 -05:00
tracing: remove recording function depth from trace_printk
2009-03-19 15:58:47 -04:00
trace: Call tracing_reset_online_cpus before tracer->init()
2009-02-06 01:01:41 +01:00
ftrace: ensure every event gets an id
2009-03-20 10:17:06 +01:00
tracing: make print_(b)printk_msg_only global
2009-03-19 15:57:55 -04:00
tracing: make power tracer start/stop methods lighter weight
2009-03-17 23:12:11 -04:00
tracing: remove recording function depth from trace_printk
2009-03-19 15:58:47 -04:00
tracing: make sched_switch stop/start light weight
2009-03-17 23:10:45 -04:00
tracing: have latency tracers set the latency format
2009-03-04 22:15:30 -05:00
tracing: keep the tracing buffer after self-test failure
2009-03-22 15:17:21 +01:00
tracing: left align location header in stack_trace
2009-03-13 00:00:58 -04:00
tracing: fix typing mistake in hint message and comments
2009-02-17 12:38:24 -05:00
tracing/ftrace: separate events tracing and stats tracing engine
2009-01-14 12:11:37 +01:00
tracing/syscalls: protect thread flag toggling from races
2009-03-16 09:13:16 +01:00
tracing: make all file_operations const
2009-03-05 21:46:40 -05:00
tracing: Don't use tracing_record_cmdline() in workqueue tracer fix
2009-03-12 21:23:47 -04:00
cfb180f3e7