Steven Rostedt (VMware) 78041c0c9e tracing: Disable trace_printk() on post poned tests ... The tracing seftests checks various aspects of the tracing infrastructure, and one is filtering. If trace_printk() is active during a self test, it can cause the filtering to fail, which will disable that part of the trace. To keep the selftests from failing because of trace_printk() calls, trace_printk() checks the variable tracing_selftest_running, and if set, it does not write to the tracing buffer. As some tracers were registered earlier in boot, the selftest they triggered would fail because not all the infrastructure was set up for the full selftest. Thus, some of the tests were post poned to when their infrastructure was ready (namely file system code). The postpone code did not set the tracing_seftest_running variable, and could fail if a trace_printk() was added and executed during their run. Cc: stable@vger.kernel.org Fixes: 9afecfbb95 ("tracing: Postpone tracer start-up tests till the system is more robust") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>		2020-02-20 17:43:58 -05:00
..
blktrace.c	tracing: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
bpf_trace.c	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-12-03 09:29:50 -08:00
fgraph.c	tracing: Define MCOUNT_INSN_SIZE when not defined without direct calls	2020-01-02 21:56:44 -05:00
ftrace_internal.h	treewide: Rename rcu_dereference_raw_notrace() to _check()	2019-08-01 14:16:21 -07:00
ftrace.c	ftrace: Protect ftrace_graph_hash with ftrace_sync	2020-02-05 17:16:42 -05:00
Kconfig	tracing: Move tracing selftests to bottom of menu	2020-01-30 09:46:29 -05:00
kprobe_event_gen_test.c	tracing: Add kprobe event command generation test module	2020-01-30 09:46:28 -05:00
Makefile	tracing: Add kprobe event command generation test module	2020-01-30 09:46:28 -05:00
power-traces.c
preemptirq_delay_test.c	preemptirq_delay_test: Add the burst feature and a sysfs trigger	2019-11-13 09:37:28 -05:00
ring_buffer_benchmark.c	tracing: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
ring_buffer.c	ring-buffer: Remove abandoned macro RB_MISSED_FLAGS	2020-01-21 18:38:02 -05:00
rpm-traces.c
synth_event_gen_test.c	tracing: Have synthetic event test use raw_smp_processor_id()	2020-02-20 17:43:41 -05:00
trace_benchmark.c	trace: Use pr_warn instead of pr_warning	2019-10-18 15:01:57 +02:00
trace_benchmark.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00
trace_boot.c	tracing: Change trace_boot to use synth_event interface	2020-01-31 12:59:26 -05:00
trace_branch.c	tracing: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
trace_clock.c	tracing: Add SPDX License format tags to tracing files	2018-08-16 19:08:06 -04:00
trace_dynevent.c	tracing: Use seq_buf for building dynevent_cmd string	2020-02-01 13:10:15 -05:00
trace_dynevent.h	tracing: Remove check_arg() callbacks from dynevent args	2020-02-01 13:09:23 -05:00
trace_entries.h	tracing: Set kernel_stack's caller size properly	2020-01-24 18:09:40 -05:00
trace_event_perf.c	Merge branch 'perf/urgent' into perf/core, to pick up fixes	2019-10-28 12:38:26 +01:00
trace_events_filter_test.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00
trace_events_filter.c	tracing: Avoid memory leak in process_system_preds()	2019-12-19 18:24:17 -05:00
trace_events_hist.c	tracing: Fix number printing bug in print_synth_event()	2020-02-20 16:24:17 -05:00
trace_events_inject.c	tracing: Initialize val to zero in parse_entry of inject code	2020-01-02 19:04:57 -05:00
trace_events_trigger.c	trigger_next should increase position index	2020-01-30 09:46:27 -05:00
trace_events.c	tracing: Add trace_get/put_event_file()	2020-01-30 09:46:28 -05:00
trace_export.c	tracing: Make internal ftrace events static	2019-11-13 09:37:29 -05:00
trace_functions_graph.c	tracing: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
trace_functions.c	tracing: Rename trace_buffer to array_buffer	2020-01-13 13:19:38 -05:00
trace_hwlat.c	tracing: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
trace_irqsoff.c	tracing: Rename trace_buffer to array_buffer	2020-01-13 13:19:38 -05:00
trace_kdb.c	tracing: Rename trace_buffer to array_buffer	2020-01-13 13:19:38 -05:00
trace_kprobe_selftest.c	selftest/ftrace: Move kprobe selftest function to separate compile unit	2018-07-30 18:41:04 -04:00
trace_kprobe_selftest.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00
trace_kprobe.c	tracing/kprobe: Fix uninitialized variable bug	2020-02-10 12:07:42 -05:00
trace_mmiotrace.c	tracing: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
trace_nop.c
trace_output.c	tracing: Rename trace_buffer to array_buffer	2020-01-13 13:19:38 -05:00
trace_output.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00
trace_preemptirq.c	kprobes: Prohibit probing on hardirq tracers	2019-02-13 08:16:40 +01:00
trace_printk.c	tracing: Add locked_down checks to the open calls of files created for tracefs	2019-10-12 20:48:06 -04:00
trace_probe_tmpl.h	tracing/probe: Support user-space dereference	2019-05-25 23:04:42 -04:00
trace_probe.c	tracing/probe: Fix to check the difference of nr_args before adding probe	2019-09-28 17:07:53 -04:00
trace_probe.h	tracing/probe: Reject exactly same probe event	2019-09-19 11:09:16 -04:00
trace_sched_switch.c	tracing: Fix sched switch start/stop refcount racy updates	2020-01-30 09:46:10 -05:00
trace_sched_wakeup.c	tracing: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
trace_selftest_dynamic.c	ftrace: Mark function tracer test functions noinline/noclone	2018-01-23 15:57:29 -05:00
trace_selftest.c	tracing: Rename trace_buffer to array_buffer	2020-01-13 13:19:38 -05:00
trace_seq.c	tracing: Remove unused TRACE_SEQ_BUF_USED	2020-01-21 18:39:54 -05:00
trace_stack.c	tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined	2020-01-02 22:04:07 -05:00
trace_stat.c	tracing: Fix tracing_stat return values in error handling paths	2020-01-24 18:06:48 -05:00
trace_stat.h	tracing: Use generic type for comparator function	2019-11-14 13:15:11 -05:00
trace_syscalls.c	tracing: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
trace_uprobe.c	tracing: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
trace.c	tracing: Disable trace_printk() on post poned tests	2020-02-20 17:43:58 -05:00
trace.h	ftrace: Protect ftrace_graph_hash with ftrace_sync	2020-02-05 17:16:42 -05:00
tracing_map.c	tracing: Have the histogram compare functions convert to u64 first	2019-12-19 18:26:00 -05:00
tracing_map.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00