linux/kernel/trace
Linus Torvalds ad87a8d0c4 Fix ref count of trace_array in error path of histogram file open
Tracing instances have a ref count to keep them around while files within
 their directories are open. This prevents them from being deleted while
 they are used. The histogram code had some files that needed to take the
 ref count and that was added, but the error paths did not decrement the
 ref counts. This caused the instances from ever being removed if a
 histogram file failed to open due to some error.
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Merge tag 'trace-v6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fix from Steven Rostedt:
 "Fix ref count of trace_array in error path of histogram file open

  Tracing instances have a ref count to keep them around while files
  within their directories are open. This prevents them from being
  deleted while they are used.

  The histogram code had some files that needed to take the ref count
  and that was added, but the error paths did not decrement the ref
  counts. This caused the instances from ever being removed if a
  histogram file failed to open due to some error"

* tag 'trace-v6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Correct the refcount if the hist/hist_debug file fails to open
2025-03-16 09:05:00 -10:00
..
rv verification/dot2k: Auto patch current kernel source 2024-12-27 14:39:35 -05:00
Kconfig fprobe: Rewrite fprobe on function-graph tracer 2024-12-26 10:50:05 -05:00
Makefile
blktrace.c blktrace: remove redundant return at end of function 2024-12-23 08:17:23 -07:00
bpf_trace.c bpf-next-6.14 2025-01-23 08:04:07 -08:00
bpf_trace.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
error_report-traces.c
fgraph.c fgraph: Remove calltime and rettime from generic operations 2025-01-21 21:55:49 -05:00
fprobe.c fprobe: Fix accounting of when to unregister from function graph 2025-02-21 09:36:12 -05:00
ftrace.c ftrace: Avoid potential division by zero in function_stat_show() 2025-02-27 21:02:10 -05:00
ftrace_internal.h function_graph: Make fgraph_update_pid_func() a stub for !DYNAMIC_FTRACE 2024-06-10 18:08:23 -04:00
kprobe_event_gen_test.c
pid_list.c pid: allow pid_max to be set per pid namespace 2024-12-02 11:25:25 +01:00
pid_list.h
power-traces.c
preemptirq_delay_test.c minmax: make generic MIN() and MAX() macros available everywhere 2024-07-28 15:49:18 -07:00
rethook.c
ring_buffer.c ring-buffer: Update pages_touched to reflect persistent buffer content 2025-02-15 14:00:59 -05:00
ring_buffer_benchmark.c ring-buffer: Use str_low_high() helper in ring_buffer_producer() 2024-10-19 11:12:25 -04:00
rpm-traces.c
synth_event_gen_test.c
trace.c tracing: Do not allow mmap() of persistent ring buffer 2025-02-15 13:59:52 -05:00
trace.h Remove calltime and rettime from fgraph infrastructure 2025-01-23 17:59:25 -08:00
trace_benchmark.c tracing: Improve benchmark test performance by using do_div() 2024-05-13 20:00:57 -04:00
trace_benchmark.h
trace_boot.c
trace_branch.c tracing: Remove TRACE_EVENT_FL_FILTERED logic 2024-10-08 15:24:49 -04:00
trace_btf.c
trace_btf.h
trace_clock.c tracing: Use atomic64_inc_return() in trace_clock_counter() 2024-10-09 19:59:49 -04:00
trace_dynevent.c tracing/string: Create and use __free(argv_free) in trace_dynevent.c 2024-12-26 10:38:37 -05:00
trace_dynevent.h
trace_entries.h fgraph: Remove calltime and rettime from generic operations 2025-01-21 21:55:49 -05:00
trace_eprobe.c tracing/eprobe: Adopt guard() and scoped_guard() 2025-01-10 09:00:12 +09:00
trace_event_perf.c trace/trace_event_perf: remove duplicate samples on the first tracepoint event 2024-10-09 19:44:54 -04:00
trace_events.c tracing: Fix memory leak when reading set_event file 2025-02-21 09:36:12 -05:00
trace_events_filter.c tracing: Switch trace_events_filter.c code over to use guard() 2024-12-26 10:38:37 -05:00
trace_events_filter_test.h
trace_events_hist.c tracing: Correct the refcount if the hist/hist_debug file fails to open 2025-03-14 08:29:12 -04:00
trace_events_inject.c tracing: Have format file honor EVENT_FILE_FL_FREED 2024-08-07 18:12:46 -04:00
trace_events_synth.c tracing: Switch trace_events_synth.c code over to use guard() 2024-12-26 10:38:37 -05:00
trace_events_trigger.c tracing: Switch trace_events_trigger.c code over to use guard() 2024-12-26 10:38:37 -05:00
trace_events_user.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
trace_export.c
trace_fprobe.c tracing: fprobe-events: Log error for exceeding the number of entry args 2025-02-27 09:11:51 +09:00
trace_functions.c ftrace: Correct preemption accounting for function tracing. 2025-02-21 09:36:12 -05:00
trace_functions_graph.c fgraph: Fix set_graph_notrace with setting TRACE_GRAPH_NOTRACE_BIT 2025-02-08 08:36:45 -05:00
trace_hwlat.c tracing: Remove TRACE_EVENT_FL_FILTERED logic 2024-10-08 15:24:49 -04:00
trace_irqsoff.c fgraph: Remove calltime and rettime from generic operations 2025-01-21 21:55:49 -05:00
trace_kdb.c trace: kdb: Replace simple_strtoul with kstrtoul in kdb_ftdump 2024-11-02 08:33:13 +00:00
trace_kprobe.c tracing/kprobes: Simplify __trace_kprobe_create() by removing gotos 2025-01-10 09:01:14 +09:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_mmiotrace.c tracing: Remove TRACE_EVENT_FL_FILTERED logic 2024-10-08 15:24:49 -04:00
trace_nop.c
trace_osnoise.c Runtime verifier and osnoise fixes for 6.14: 2025-01-26 14:19:45 -08:00
trace_output.c tracing: Check "%s" dereference via the field and not the TP_printk format 2024-12-17 11:40:11 -05:00
trace_output.h
trace_preemptirq.c tracing: Fix archs that still call tracepoints without RCU watching 2024-12-05 09:28:58 -05:00
trace_printk.c
trace_probe.c tracing: Use __free() in trace_probe for cleanup 2025-01-10 09:00:13 +09:00
trace_probe.h tracing: probe-events: Remove unused MAX_ARG_BUF_LEN macro 2025-03-03 11:17:54 +09:00
trace_probe_kernel.h
trace_probe_tmpl.h tracing/fprobe: Enable fprobe events with CONFIG_DYNAMIC_FTRACE_WITH_ARGS 2024-12-26 10:50:04 -05:00
trace_recursion_record.c
trace_sched_switch.c pid: allow pid_max to be set per pid namespace 2024-12-02 11:25:25 +01:00
trace_sched_wakeup.c fgraph: Remove calltime and rettime from generic operations 2025-01-21 21:55:49 -05:00
trace_selftest.c fgraph: Pass ftrace_regs to retfunc 2024-12-26 10:50:03 -05:00
trace_selftest_dynamic.c
trace_seq.c
trace_stack.c tracing: Switch trace_stack.c code over to use guard() 2024-12-26 10:38:37 -05:00
trace_stat.c tracing: Switch trace_stat.c code over to use guard() 2024-12-26 10:38:37 -05:00
trace_stat.h
trace_synth.h
trace_syscalls.c tracing/perf: Add might_fault check to syscall probes 2024-10-09 17:09:46 -04:00
trace_uprobe.c tracing/uprobe: Adopt guard() and scoped_guard() 2025-01-10 09:00:12 +09:00
tracing_map.c tracing: Fix cmp_entries_dup() to respect sort() comparison rules 2024-12-04 10:38:24 -05:00
tracing_map.h