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Tom Zanussi 86599dbe2c tracing: Add helper functions to simplify event_command.parse() callback handling 
The event_command.parse() callback is responsible for parsing and
registering triggers.  The existing command implementions for this
callback duplicate a lot of the same code, so to clean up and
consolidate those implementations, introduce a handful of helper
functions for implementors to use.

This also makes it easier for new commands to be implemented and
allows them to focus more on the customizations they provide rather
than obscuring and complicating it with boilerplate code.

Link: https://lkml.kernel.org/r/c1ff71f594d45177706571132bd3119491097221.1641823001.git.zanussi@kernel.org

Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
 		2022-01-10 11:09:11 -05:00
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Kconfig tracing: Simplify the Kconfig dependency of FTRACE 2021-08-16 11:37:20 -04:00
Makefile tracing: Place trace_pid_list logic into abstract functions 2021-10-05 17:30:08 -04:00
blktrace.c block: don't call blk_status_to_errno in blk_update_request 2021-10-19 05:54:57 -06:00
bpf_trace.c bpf: Forbid bpf_ktime_get_coarse_ns and bpf_timer_* in tracing progs 2021-11-15 20:35:58 -08:00
bpf_trace.h
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error_report-traces.c tracing: add error_report_end trace point 2021-02-26 09:41:02 -08:00
fgraph.c x86/ftrace: Make function graph use ftrace directly 2021-10-20 23:44:43 -04:00
ftrace.c Two tracing fixes: 2021-11-11 10:16:33 -08:00
ftrace_internal.h
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kprobe_event_gen_test.c
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pid_list.c tracing: Initialize upper and lower vars in pid_list_refill_irq() 2021-10-07 09:56:38 -04:00
pid_list.h tracing: Create a sparse bitmask for pid filtering 2021-10-05 17:38:45 -04:00
power-traces.c
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preemptirq_delay_test.c kernel: trace: preemptirq_delay_test: add cpu affinity 2021-02-02 17:02:07 -05:00
ring_buffer.c ring-buffer: Protect ring_buffer_reset() from reentrancy 2021-11-10 11:56:29 -05:00
ring_buffer_benchmark.c
…
rpm-traces.c
…
synth_event_gen_test.c tracing: Fix various typos in comments 2021-03-23 14:08:18 -04:00
trace.c tracing: Use trace_iterator_reset() in tracing_read_pipe() 2021-12-11 09:34:32 -05:00
trace.h tracing: Add helper functions to simplify event_command.parse() callback handling 2022-01-10 11:09:11 -05:00
trace_benchmark.c tracing: Fix some typos in comments 2020-11-10 20:39:40 -05:00
trace_benchmark.h
…
trace_boot.c tracing: Fix missing trace_boot_init_histograms kstrdup NULL checks 2021-10-26 09:18:10 -04:00
trace_branch.c tracing: Merge irqflags + preempt counter. 2021-02-02 17:02:06 -05:00
trace_clock.c tracing: Do no increment trace_clock_global() by one 2021-06-18 09:10:00 -04:00
trace_dynevent.c tracing: Disable "other" permission bits in the tracefs files 2021-10-08 18:08:43 -04:00
trace_dynevent.h tracing: Add DYNAMIC flag for dynamic events 2021-08-18 18:10:32 -04:00
trace_entries.h trace: Add timerlat tracer 2021-06-25 19:57:24 -04:00
trace_eprobe.c tracing: Remove ops param from event_command reg()/unreg() callbacks 2022-01-10 11:09:11 -05:00
trace_event_perf.c tracing: Show size of requested perf buffer 2021-10-27 12:25:09 -04:00
trace_events.c tracing: Test the 'Do not trace this pid' case in create event 2021-11-27 16:50:43 -05:00
trace_events_filter.c tracing: Support __rel_loc relative dynamic data location attribute 2021-12-06 15:37:21 -05:00
trace_events_filter_test.h
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trace_events_hist.c tracing: Remove ops param from event_command reg()/unreg() callbacks 2022-01-10 11:09:11 -05:00
trace_events_inject.c tracing: Support __rel_loc relative dynamic data location attribute 2021-12-06 15:37:21 -05:00
trace_events_synth.c tracing: Do not let synth_events block other dyn_event systems during create 2021-12-11 09:34:32 -05:00
trace_events_trigger.c tracing: Add helper functions to simplify event_command.parse() callback handling 2022-01-10 11:09:11 -05:00
trace_export.c tracing: Fix some typos in comments 2020-11-10 20:39:40 -05:00
trace_functions.c ftrace: disable preemption when recursion locked 2021-10-27 11:21:49 -04:00
trace_functions_graph.c tracing: in_irq() cleanup 2021-10-13 18:19:41 -04:00
trace_hwlat.c tracing/hwlat: Make some internal symbols static 2021-10-26 09:18:28 -04:00
trace_irqsoff.c tracing: Merge irqflags + preempt counter. 2021-02-02 17:02:06 -05:00
trace_kdb.c kdb: Rename members of struct kdbtab_t 2021-07-27 17:05:06 +01:00
trace_kprobe.c tracing: Iterate trace_[ku]probe objects directly 2021-12-11 09:34:32 -05:00
trace_kprobe_selftest.c
…
trace_kprobe_selftest.h
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trace_mmiotrace.c tracing: Remove definition of DEBUG in trace_mmiotrace.c 2021-02-02 17:02:07 -05:00
trace_nop.c
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trace_osnoise.c tracing: Switch to kvfree_rcu() API 2021-12-06 17:53:50 -05:00
trace_output.c tracing: Show kretprobe unknown indicator only for kretprobe_trampoline 2021-09-30 21:24:08 -04:00
trace_output.h
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trace_preemptirq.c
…
trace_printk.c tracing: Disable "other" permission bits in the tracefs files 2021-10-08 18:08:43 -04:00
trace_probe.c tracing: Switch to kvfree_rcu() API 2021-12-06 17:53:50 -05:00
trace_probe.h tracing: Add a probe that attaches to trace events 2021-08-20 14:18:40 -04:00
trace_probe_tmpl.h tracing/probes: Have process_fetch_insn() take a void * instead of pt_regs 2021-08-19 09:09:03 -04:00
trace_recursion_record.c tracing: Disable "other" permission bits in the tracefs files 2021-10-08 18:08:43 -04:00
trace_sched_switch.c
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trace_sched_wakeup.c tracing: Change variable type as bool for clean-up 2021-06-30 09:19:14 -04:00
trace_selftest.c tracing: Fix selftest config check for function graph start up test 2021-10-21 14:18:48 -04:00
trace_selftest_dynamic.c
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trace_seq.c tracing: Fix various typos in comments 2021-03-23 14:08:18 -04:00
trace_stack.c tracing: Disable "other" permission bits in the tracefs files 2021-10-08 18:08:43 -04:00
trace_stat.c tracing: Disable "other" permission bits in the tracefs files 2021-10-08 18:08:43 -04:00
trace_stat.h
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trace_synth.h tracing: synth events: increase max fields count 2021-09-08 15:29:16 -04:00
trace_syscalls.c tracing: Merge irqflags + preempt counter. 2021-02-02 17:02:06 -05:00
trace_uprobe.c tracing: Iterate trace_[ku]probe objects directly 2021-12-11 09:34:32 -05:00
tracing_map.c tracing: Fix a kmemleak false positive in tracing_map 2021-12-01 21:04:34 -05:00
tracing_map.h tracing: Fix some typos in comments 2020-11-10 20:39:40 -05:00