Tero Kristo f3de497826 trace/hwlat: Do not wipe the contents of per-cpu thread data ...

commit 4c42f5f0d1 upstream.

Do not wipe the contents of the per-cpu kthread data when starting the
tracer, as this will completely forget about already running instances
and can later start new additional per-cpu threads.

Link: https://lore.kernel.org/all/20230302113654.2984709-1-tero.kristo@linux.intel.com/
Link: https://lkml.kernel.org/r/20230310100451.3948583-2-tero.kristo@linux.intel.com

Cc: stable@vger.kernel.org
Fixes: f46b16520a ("trace/hwlat: Implement the per-cpu mode")
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-03-22 13:31:35 +01:00

..

blktrace.c

trace/blktrace: fix memory leak with using debugfs_lookup()

2023-03-10 09:39:47 +01:00

bpf_trace.c

bpf: Fix a possible task gone issue with bpf_send_signal[_thread]() helpers

2023-02-09 11:26:33 +01:00

bpf_trace.h

…

error_report-traces.c

…

fgraph.c

…

ftrace_internal.h

…

ftrace.c

ftrace: Fix invalid address access in lookup_rec() when index is 0

2023-03-22 13:31:35 +01:00

Kconfig

tracing: Fix complicated dependency of CONFIG_TRACER_MAX_TRACE

2023-01-12 11:58:55 +01:00

kprobe_event_gen_test.c

tracing: kprobe: Fix potential null-ptr-deref on trace_array in kprobe_event_gen_test_exit()

2022-11-26 09:24:43 +01:00

Makefile

tracing: Place trace_pid_list logic into abstract functions

2022-07-29 17:25:29 +02:00

pid_list.c

tracing: Place trace_pid_list logic into abstract functions

2022-07-29 17:25:29 +02:00

pid_list.h

tracing: Place trace_pid_list logic into abstract functions

2022-07-29 17:25:29 +02:00

power-traces.c

…

preemptirq_delay_test.c

…

ring_buffer_benchmark.c

…

ring_buffer.c

tracing: Add NULL checks for buffer in ring_buffer_free_read_page()

2023-03-11 13:57:32 +01:00

rpm-traces.c

…

synth_event_gen_test.c

tracing: Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event()

2022-11-26 09:24:43 +01:00

trace_benchmark.c

…

trace_benchmark.h

…

trace_boot.c

tracing: Initialize integer variable to prevent garbage return value

2022-06-09 10:23:21 +02:00

trace_branch.c

…

trace_clock.c

…

trace_dynevent.c

tracing: Free buffers when a used dynamic event is removed

2022-12-08 11:28:43 +01:00

trace_dynevent.h

…

trace_entries.h

…

trace_eprobe.c

tracing: Fix race where eprobes can be called before the event

2023-01-12 11:58:54 +01:00

trace_event_perf.c

tracing/perf: Fix double put of trace event when init fails

2022-08-25 11:39:57 +02:00

trace_events_filter_test.h

…

trace_events_filter.c

tracing: Add ustring operation to filtering string pointers

2022-03-08 19:12:33 +01:00

trace_events_hist.c

tracing: Check field value in hist_field_name()

2023-03-22 13:31:33 +01:00

trace_events_inject.c

…

trace_events_synth.c

tracing: Fix issue of missing one synthetic field

2023-01-12 11:59:03 +01:00

trace_events_trigger.c

tracing: Fix to check event_mutex is held while accessing trigger list

2022-09-15 11:30:02 +02:00

trace_events.c

tracing: Free buffers when a used dynamic event is removed

2022-12-08 11:28:43 +01:00

trace_export.c

…

trace_functions_graph.c

…

trace_functions.c

…

trace_hwlat.c

trace/hwlat: Do not wipe the contents of per-cpu thread data

2023-03-22 13:31:35 +01:00

trace_irqsoff.c

…

trace_kdb.c

…

trace_kprobe_selftest.c

…

trace_kprobe_selftest.h

…

trace_kprobe.c

tracing: Move duplicate code of trace_kprobe/eprobe.c into header

2022-10-26 12:34:31 +02:00

trace_mmiotrace.c

…

trace_nop.c

…

trace_osnoise.c

tracing/osnoise: Fix duration type

2022-12-08 11:28:43 +01:00

trace_output.c

tracing: Make sure trace_printk() can output as soon as it can be used

2023-02-01 08:27:23 +01:00

trace_output.h

…

trace_preemptirq.c

tracing: hold caller_addr to hardirq_{enable,disable}_ip

2022-09-20 12:39:43 +02:00

trace_printk.c

…

trace_probe_kernel.h

tracing: Add "(fault)" name injection to kernel probes

2022-10-26 12:34:32 +02:00

trace_probe_tmpl.h

…

trace_probe.c

tracing/probes: Handle system names with hyphens

2023-01-12 11:58:55 +01:00

trace_probe.h

…

trace_recursion_record.c

…

trace_sched_switch.c

…

trace_sched_wakeup.c

…

trace_selftest_dynamic.c

…

trace_selftest.c

…

trace_seq.c

…

trace_stack.c

…

trace_stat.c

…

trace_stat.h

…

trace_synth.h

…

trace_syscalls.c

tracing: Make tp_printk work on syscall tracepoints

2022-06-14 18:36:14 +02:00

trace_uprobe.c

tracing/uprobes: Check the return value of kstrdup() for tu->filename

2022-03-08 19:12:38 +01:00

trace.c

tracing: Make splice_read available again

2023-03-22 13:31:32 +01:00

trace.h

tracing: Make sure trace_printk() can output as soon as it can be used

2023-02-01 08:27:23 +01:00

tracing_map.c

…

tracing_map.h

…