mirror of https://github.com/torvalds/linux.git
d1d36025a6
- fprobe: Performance enhancement of the fprobe using rhltable
. fprobe: use rhltable for fprobe_ip_table. The fprobe IP table has
been converted to use an rhltable for improved performance when
dealing with a large number of probed functions.
. Fix a suspicious RCU usage warning of the above change in the
fprobe entry handler.
. Remove an unused local variable of the above change.
. Fix to initialize fprobe_ip_table in core_initcall().
- fprobe: Performance optimization of fprobe by ftrace
. fprobe: Use ftrace instead of fgraph for entry only probes. This
avoids the unneeded overhead of fgraph stack setup.
. Also update fprobe selftest for entry-only probe.
. fprobe: Use ftrace only if CONFIG_DYNAMIC_FTRACE_WITH_ARGS or
WITH_REGS is defined.
- probes: Cleanup probe event subsystems.
. uprobe/eprobe: Allocate traceprobe_parse_context per probe instead
of each probe argument parsing. This reduce memory allocation/free
of temporary working memory.
. uprobes: Cleanup code using __free().
. eprobes: Cleanup code using __free().
. probes: Cleanup code using __free(trace_probe_log_clear) to clear
error log automatically.
. probes: Replace strcpy() with memcpy() in __trace_probe_log_err().
-----BEGIN PGP SIGNATURE-----
iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmkvhSsbHG1hc2FtaS5o
aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8bWhEH/23XM5Msjy5vopB+ECZb
iCj8SkWrQzfiCBILUqxCkZdfJHFomGPHewxvxIOWdb7evtHuy0Ypne/Uw/TMAtAh
xvDQmu03IV2jO7h7GExsnEh0nX0upYg4IVmN0sCSSWSfgLLTWO9ICClavV9adcva
ZR+5TdZbK+W59n+ejxA9OMDt1G+nz1Ls9Qhx9ktf7odkJzBkQGPq/heZuPbF3+6k
Vj2IHTuqWobDDt+ekKOBRWNh9cS61ybxvsr/vmkT6s904ortP6mZa3zEYPRVOUNG
WJ/KGJwvExTcaG/Dy2g6q8tam1Bidx9/S6klyOGXQXxvaIT1VtBc66HzAUfso6jg
yIc=
=w6Kq
-----END PGP SIGNATURE-----
Merge tag 'probes-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes updates from Masami Hiramatsu:
"fprobe performance enhancement using rhltable:
- use rhltable for fprobe_ip_table. The fprobe IP table has been
converted to use an rhltable for improved performance when dealing
with a large number of probed functions
- Fix a suspicious RCU usage warning of the above change in the
fprobe entry handler
- Remove an unused local variable of the above change
- Fix to initialize fprobe_ip_table in core_initcall()
Performance optimization of fprobe by ftrace:
- Use ftrace instead of fgraph for entry only probes. This avoids the
unneeded overhead of fgraph stack setup
- Also update fprobe selftest for entry-only probe
- fprobe: Use ftrace only if CONFIG_DYNAMIC_FTRACE_WITH_ARGS or
WITH_REGS is defined
Cleanup probe event subsystems:
- Allocate traceprobe_parse_context per probe instead of each probe
argument parsing. This reduce memory allocation/free of temporary
working memory
- Cleanup code using __free()
- Replace strcpy() with memcpy() in __trace_probe_log_err()"
* tag 'probes-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: fprobe: use ftrace if CONFIG_DYNAMIC_FTRACE_WITH_ARGS
lib/test_fprobe: add testcase for mixed fprobe
tracing: fprobe: optimization for entry only case
tracing: fprobe: Fix to init fprobe_ip_table earlier
tracing: fprobe: Remove unused local variable
tracing: probes: Replace strcpy() with memcpy() in __trace_probe_log_err()
tracing: fprobe: fix suspicious rcu usage in fprobe_entry
tracing: uprobe: eprobes: Allocate traceprobe_parse_context per probe
tracing: uprobes: Cleanup __trace_uprobe_create() with __free()
tracing: eprobe: Cleanup eprobe event using __free()
tracing: probes: Use __free() for trace_probe_log
tracing: fprobe: use rhltable for fprobe_ip_table
|
||
|---|---|---|
| .. | ||
| rv | ||
| Kconfig | ||
| Makefile | ||
| blktrace.c | ||
| bpf_trace.c | ||
| bpf_trace.h | ||
| error_report-traces.c | ||
| fgraph.c | ||
| fprobe.c | ||
| ftrace.c | ||
| ftrace_internal.h | ||
| kprobe_event_gen_test.c | ||
| pid_list.c | ||
| pid_list.h | ||
| power-traces.c | ||
| preemptirq_delay_test.c | ||
| rethook.c | ||
| ring_buffer.c | ||
| ring_buffer_benchmark.c | ||
| rpm-traces.c | ||
| synth_event_gen_test.c | ||
| trace.c | ||
| trace.h | ||
| trace_benchmark.c | ||
| trace_benchmark.h | ||
| trace_boot.c | ||
| trace_branch.c | ||
| trace_btf.c | ||
| trace_btf.h | ||
| trace_clock.c | ||
| trace_dynevent.c | ||
| trace_dynevent.h | ||
| trace_entries.h | ||
| trace_eprobe.c | ||
| trace_event_perf.c | ||
| trace_events.c | ||
| trace_events_filter.c | ||
| trace_events_filter_test.h | ||
| trace_events_hist.c | ||
| trace_events_inject.c | ||
| trace_events_synth.c | ||
| trace_events_trigger.c | ||
| trace_events_user.c | ||
| trace_export.c | ||
| trace_fprobe.c | ||
| trace_functions.c | ||
| trace_functions_graph.c | ||
| trace_hwlat.c | ||
| trace_irqsoff.c | ||
| trace_kdb.c | ||
| trace_kprobe.c | ||
| trace_kprobe_selftest.c | ||
| trace_kprobe_selftest.h | ||
| trace_mmiotrace.c | ||
| trace_nop.c | ||
| trace_osnoise.c | ||
| trace_output.c | ||
| trace_output.h | ||
| trace_preemptirq.c | ||
| trace_printk.c | ||
| trace_probe.c | ||
| trace_probe.h | ||
| trace_probe_kernel.h | ||
| trace_probe_tmpl.h | ||
| trace_recursion_record.c | ||
| trace_sched_switch.c | ||
| trace_sched_wakeup.c | ||
| trace_selftest.c | ||
| trace_selftest_dynamic.c | ||
| trace_seq.c | ||
| trace_stack.c | ||
| trace_stat.c | ||
| trace_stat.h | ||
| trace_synth.h | ||
| trace_syscalls.c | ||
| trace_uprobe.c | ||
| tracing_map.c | ||
| tracing_map.h | ||