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linux/kernel/trace
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Aaron Tomlin 2cddfc2e8f tracing: Add bitmask-list option for human-readable bitmask display 
Add support for displaying bitmasks in human-readable list format (e.g.,
0,2-5,7) in addition to the default hexadecimal bitmap representation.
This is particularly useful when tracing CPU masks and other large
bitmasks where individual bit positions are more meaningful than their
hexadecimal encoding.

When the "bitmask-list" option is enabled, the printk "%*pbl" format
specifier is used to render bitmasks as comma-separated ranges, making
trace output easier to interpret for complex CPU configurations and
large bitmask values.

Link: https://patch.msgid.link/20251226160724.2246493-2-atomlin@atomlin.com
Signed-off-by: Aaron Tomlin <atomlin@atomlin.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2026-01-26 17:00:50 -05:00
..
rv rv: Convert to use __free 2025-12-02 07:28:32 +01:00
blktrace.c tracing updates for v6.19: 2025-12-05 09:51:37 -08:00
bpf_trace.c bpf: Fix verifier assumptions of bpf_d_path's output buffer 2025-12-10 01:34:04 -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 tracing: Fix typo in fpgraph.c 2025-12-05 15:43:39 -05:00
fprobe.c tracing fixes for v6.19: 2025-12-06 13:49:40 -08:00
ftrace.c ftrace: Do not over-allocate ftrace memory 2026-01-15 10:17:53 -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
Kconfig tracing updates for v6.19: 2025-12-05 09:51:37 -08:00
kprobe_event_gen_test.c
Makefile ftrace: Allow tracing of some of the tracing code 2025-11-26 15:13:30 -05:00
pid_list.c trace/pid_list: optimize pid_list->lock contention 2025-11-13 15:15:54 -05:00
pid_list.h trace/pid_list: optimize pid_list->lock contention 2025-11-13 15:15:54 -05:00
power-traces.c PM: cpufreq: powernv/tracing: Move powernv_throttle trace event 2025-07-21 16:40:56 -04:00
preemptirq_delay_test.c kernel: trace: preemptirq_delay_test: use offstack cpu mask 2025-07-08 18:17:38 -04:00
rethook.c rethook: honor CONFIG_FTRACE_VALIDATE_RCU_IS_WATCHING in rethook_try_get() 2024-05-01 23:18:48 +09:00
ring_buffer.c ring-buffer: Avoid softlockup in ring_buffer_resize() during memory free 2026-01-07 14:52:22 -05:00
ring_buffer_benchmark.c tracing: Fix typo in ring_buffer_benchmark.c 2025-12-05 15:43:40 -05:00
rpm-traces.c
synth_event_gen_test.c tracing / synthetic: Disable events after testing in synth_event_gen_test_init() 2023-12-21 10:04:45 -05:00
trace.c tracing: Avoid possible signed 64-bit truncation 2026-01-23 13:34:30 -05:00
trace.h tracing: Add bitmask-list option for human-readable bitmask display 2026-01-26 17:00:50 -05:00
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 tracing: Allow creating instances with specified system events 2023-12-18 23:14:16 -05:00
trace_branch.c tracing: branch: Use trace_tracing_is_on_cpu() instead of "disabled" field 2025-05-09 15:19:10 -04:00
trace_btf.c tracing/probes: Fix to search structure fields correctly 2024-02-17 21:25:42 +09:00
trace_btf.h tracing/probes: Add a function to search a member of a struct/union 2023-08-23 09:40:16 +09:00
trace_clock.c tracing: Use atomic64_inc_return() in trace_clock_counter() 2024-10-09 19:59:49 -04:00
trace_dynevent.c tracing: Report wrong dynamic event command 2025-11-10 19:26:14 -05:00
trace_dynevent.h tracing: probes: Fix a possible race in trace_probe_log APIs 2025-05-13 22:23:34 +09:00
trace_entries.h function_graph: Enable funcgraph-args and funcgraph-retaddr to work simultaneously 2025-11-26 15:13:30 -05:00
trace_eprobe.c Probes for v6.19 2025-12-05 10:55:47 -08:00
trace_event_perf.c perf: Remove unnecessary parameter of security check 2025-02-26 14:13:58 -05:00
trace_events.c tracing: Drop unneeded assignment to soft_mode 2026-01-07 14:52:22 -05:00
trace_events_filter.c tracing: Fix typo in trace_events_filter.c 2025-12-05 15:43:40 -05:00
trace_events_filter_test.h
trace_events_hist.c tracing: Remove redundant call to event_trigger_reset_filter() in event_hist_trigger_parse() 2026-01-26 17:00:50 -05:00
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: Fix crash on synthetic stacktrace field usage 2026-01-23 13:34:21 -05:00
trace_events_trigger.c tracing: Fix typo in trace_events_trigger.c 2025-12-05 15:43:41 -05:00
trace_events_user.c tracing: Fix multiple typos in trace_events_user.c 2025-12-05 15:43:41 -05:00
trace_export.c
trace_fprobe.c tracing updates for v6.19: 2025-12-05 09:51:37 -08:00
trace_functions.c tracing: Have function tracer define options per instance 2025-11-12 09:59:54 -05:00
trace_functions_graph.c function_graph: Fix args pointer mismatch in print_graph_retval() 2026-01-23 13:34:38 -05:00
trace_hwlat.c tracing: Replace opencoded cpumask_next_wrap() in move_to_next_cpu() 2025-07-08 18:17:29 -04:00
trace_irqsoff.c tracing: Allow tracer to add more than 32 options 2025-11-04 21:44:00 +09:00
trace_kdb.c tracing: Allow tracer to add more than 32 options 2025-11-04 21:44:00 +09:00
trace_kprobe.c tracing: Allow tracer to add more than 32 options 2025-11-04 21:44:00 +09:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_mmiotrace.c tracing/mmiotrace: Remove reference to unused per CPU data pointer 2025-05-08 09:36:09 -04:00
trace_nop.c
trace_osnoise.c tracing: Fix multiple typos in trace_osnoise.c 2025-12-05 15:43:41 -05:00
trace_output.c tracing: Add bitmask-list option for human-readable bitmask display 2026-01-26 17:00:50 -05:00
trace_output.h tracing: Allow tracer to add more than 32 options 2025-11-04 21:44:00 +09:00
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 fixes for v6.19: 2025-12-06 13:49:40 -08:00
trace_probe.h tracing: probes: Use __free() for trace_probe_log 2025-11-01 01:10:28 +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 tracing: Ensure optimized hashing works 2025-09-30 17:27:58 -04:00
trace_sched_wakeup.c tracing: Allow tracer to add more than 32 options 2025-11-04 21:44:00 +09:00
trace_selftest.c fgraph: Pass ftrace_regs to retfunc 2024-12-26 10:50:03 -05:00
trace_selftest_dynamic.c
trace_seq.c tracing: Add bitmask-list option for human-readable bitmask display 2026-01-26 17:00:50 -05:00
trace_stack.c tracing updates for v6.16: 2025-05-29 21:04:36 -07:00
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: Hide __NR_utimensat and _NR_mq_timedsend when not defined 2025-11-10 14:23:53 -05:00
trace_uprobe.c tracing: uprobe: eprobes: Allocate traceprobe_parse_context per probe 2025-11-01 01:10:29 +09:00
tracing_map.c tracing: Use vmalloc_array() to improve code 2025-09-23 09:31:58 -04:00
tracing_map.h