Tom Zanussi d0bad49bb0 tracing: Add enable_hist/disable_hist triggers ... Similar to enable_event/disable_event triggers, these triggers enable and disable the aggregation of events into maps rather than enabling and disabling their writing into the trace buffer. They can be used to automatically start and stop hist triggers based on a matching filter condition. If there's a paused hist trigger on system:event, the following would start it when the filter condition was hit: # echo enable_hist:system:event [ if filter] > event/trigger And the following would disable a running system:event hist trigger: # echo disable_hist:system:event [ if filter] > event/trigger See Documentation/trace/events.txt for real examples. Link: http://lkml.kernel.org/r/f812f086e52c8b7c8ad5443487375e03c96a601f.1457029949.git.tom.zanussi@linux.intel.com Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com> Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2016-04-19 18:55:57 -04:00
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blktrace.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
bpf_trace.c	bpf: prevent kprobe+bpf deadlocks	2016-03-08 15:28:30 -05:00
ftrace.c	Nothing major this round. Mostly small clean ups and fixes.	2016-03-24 10:52:25 -07:00
Kconfig	tracing: Add 'hist' event trigger command	2016-04-19 12:16:14 -04:00
Makefile	tracing: Add 'hist' event trigger command	2016-04-19 12:16:14 -04:00
power-traces.c	cpufreq: powernv/tracing: Add powernv_throttle tracepoint	2016-02-05 02:38:02 +01:00
ring_buffer_benchmark.c	ring_buffer: Remove unneeded smp_wmb() before wakeup of reader benchmark	2015-11-03 16:19:02 -05:00
ring_buffer.c	ring-buffer: Process commits whenever moving to a new page.	2015-11-25 15:24:05 -05:00
rpm-traces.c
trace_benchmark.c	tracing: Only benchmark the time tracepoints take if tracing is on	2015-11-02 13:34:58 -05:00
trace_benchmark.h	tracing: Add tracepoint benchmark tracepoint	2014-05-29 22:49:54 -04:00
trace_branch.c	tracing: Remove {start,stop}_branch_trace	2015-10-21 10:10:09 -04:00
trace_clock.c	tracing: Export tracing clock functions	2015-05-12 15:56:57 -04:00
trace_entries.h	tracing: %pF is only for function pointers	2015-03-25 08:57:22 -04:00
trace_event_perf.c	Not much new with tracing for this release. Mostly just clean ups and	2016-01-12 20:04:15 -08:00
trace_events_filter_test.h
trace_events_filter.c	tracing: Make ftrace_event_field checking functions available	2016-03-08 11:19:29 -05:00
trace_events_hist.c	tracing: Add enable_hist/disable_hist triggers	2016-04-19 18:55:57 -04:00
trace_events_trigger.c	tracing: Add enable_hist/disable_hist triggers	2016-04-19 18:55:57 -04:00
trace_events.c	tracing: Add 'hist' event trigger command	2016-04-19 12:16:14 -04:00
trace_export.c	tracing: ftrace_event_is_function() can return boolean	2015-11-02 14:28:05 -05:00
trace_functions_graph.c	arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections	2016-03-25 16:37:42 -07:00
trace_functions.c	tracing: Make tracer_flags use the right set_flag callback	2016-03-08 11:19:08 -05:00
trace_irqsoff.c	tracing: Remove redundant reset per-CPU buff in irqsoff tracer	2016-03-18 16:39:11 -04:00
trace_kdb.c	tracing: Move trace_flags from global to a trace_array field	2015-09-30 15:22:55 -04:00
trace_kprobe.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
trace_mmiotrace.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
trace_nop.c	tracing: Fix typoes in code comment and printk in trace_nop.c	2016-03-08 11:23:57 -05:00
trace_output.c	tracing: Record and show NMI state	2016-03-22 18:04:10 -04:00
trace_output.h	tracing: Turn seq_print_user_ip() into a static function	2015-09-28 10:16:12 -04:00
trace_printk.c	tracing: Fix trace_printk() to print when not using bprintk()	2016-03-22 18:02:40 -04:00
trace_probe.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
trace_probe.h	kernel/trace_probe: is_good_name can be boolean	2015-09-22 13:11:30 -04:00
trace_sched_switch.c	sched/core: Fix trace_sched_switch()	2015-10-06 17:08:15 +02:00
trace_sched_wakeup.c	Most of the changes are clean ups and small fixes. Some of them have	2015-11-06 13:30:20 -08:00
trace_selftest_dynamic.c
trace_selftest.c	Seems that Peter Zijlstra added a new check that is making old	2014-10-12 07:28:55 -04:00
trace_seq.c	tracing: use %*pb[l] to print bitmaps including cpumasks and nodemasks	2015-02-13 21:21:37 -08:00
trace_stack.c	tracing, kasan: Silence Kasan warning in check_stack of stack_tracer	2016-02-19 12:36:44 -05:00
trace_stat.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
trace_stat.h
trace_syscalls.c	Nothing major this round. Mostly small clean ups and fixes.	2016-03-24 10:52:25 -07:00
trace_uprobe.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
trace.c	tracing: Add enable_hist/disable_hist triggers	2016-04-19 18:55:57 -04:00
trace.h	tracing: Add enable_hist/disable_hist triggers	2016-04-19 18:55:57 -04:00
tracing_map.c	tracing: Update some tracing_map constants and comments	2016-04-19 12:16:06 -04:00
tracing_map.h	tracing: Update some tracing_map constants and comments	2016-04-19 12:16:06 -04:00