Jiri Olsa 2ebadb60cb bpf: Return error for missed kprobe multi bpf program execution ... When kprobe multi bpf program can't be executed due to recursion check, we currently return 0 (success) to fprobe layer where it's ignored for standard kprobe multi probes. For kprobe session the success return value will make fprobe layer to install return probe and try to execute it as well. But the return session probe should not get executed, because the entry part did not run. FWIW the return probe bpf program most likely won't get executed, because its recursion check will likely fail as well, but we don't need to run it in the first place.. also we can make this clear and obvious. It also affects missed counts for kprobe session program execution, which are now doubled (extra count for not executed return probe). Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20250106175048.1443905-1-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2025-01-08 09:39:58 -08:00
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rv	rv: Fix a typo	2024-10-04 19:09:23 -04:00
Kconfig	function_graph: Support recording and printing the function return address	2024-10-05 10:14:04 -04:00
Makefile	…
blktrace.c	…
bpf_trace.c	bpf: Return error for missed kprobe multi bpf program execution	2025-01-08 09:39:58 -08:00
bpf_trace.h	…
error_report-traces.c	…
fgraph.c	fgraph: Use guard(mutex)(&ftrace_lock) for unregister_ftrace_graph()	2024-10-29 07:43:02 -04:00
fprobe.c	…
ftrace.c	tracing updates for v6.13:	2024-11-22 13:27:01 -08:00
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	trace/pid_list: Change gfp flags in pid_list_fill_irq()	2024-07-15 15:07:14 -04:00
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	trace ring-buffer updates for v6.13	2024-11-22 13:11:17 -08:00
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: Record task flag NEED_RESCHED_LAZY.	2024-11-22 17:49:39 -05:00
trace.h	tracing updates for v6.13:	2024-11-22 13:27:01 -08:00
trace_benchmark.c	…
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	…
trace_dynevent.h	…
trace_entries.h	function_graph: Support recording and printing the function return address	2024-10-05 10:14:04 -04:00
trace_eprobe.c	tracing/eprobe: Fix to release eprobe when failed to add dyn_event	2024-12-08 23:25:09 +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: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
trace_events_filter.c	tracing: Replace multiple deprecated strncpy with memcpy	2024-10-30 19:41:08 -04:00
trace_events_filter_test.h	…
trace_events_hist.c	tracing: Remove redundant check on field->field in histograms	2024-11-12 11:36:57 -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	…
trace_events_trigger.c	tracing: Have format file honor EVENT_FILE_FL_FREED	2024-08-07 18:12:46 -04:00
trace_events_user.c	tracepoints: Use new static branch API	2024-10-08 21:17:39 -04:00
trace_export.c	…
trace_fprobe.c	tracing/probes: Fix MAX_TRACE_ARGS limit handling	2024-10-23 17:24:44 +09:00
trace_functions.c	ftrace: Get the true parent ip for function tracer	2024-11-18 12:02:43 -05:00
trace_functions_graph.c	tracing updates for v6.13:	2024-11-22 13:27:01 -08:00
trace_hwlat.c	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
trace_irqsoff.c	fgraph: Simplify return address printing in function graph tracer	2024-10-10 14:06:26 -04:00
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/probes: Fix MAX_TRACE_ARGS limit handling	2024-10-23 17:24:44 +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	tracing: Remove TRACE_EVENT_FL_FILTERED logic	2024-10-08 15:24:49 -04:00
trace_output.c	tracing: Record task flag NEED_RESCHED_LAZY.	2024-11-22 17:49:39 -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: Consider the NULL character when validating the event length	2024-10-23 17:24:47 +09:00
trace_probe.h	…
trace_probe_kernel.h	…
trace_probe_tmpl.h	…
trace_recursion_record.c	…
trace_sched_switch.c	tracing: Replace strncpy() with strscpy() when copying comm	2024-11-01 14:37:31 -04:00
trace_sched_wakeup.c	fgraph: Simplify return address printing in function graph tracer	2024-10-10 14:06:26 -04:00
trace_selftest.c	ftrace updates for v6.13:	2024-11-20 11:34:10 -08:00
trace_selftest_dynamic.c	…
trace_seq.c	…
trace_stack.c	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00
trace_stat.c	…
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	bpf: Fix theoretical prog_array UAF in __uprobe_perf_func()	2024-12-10 13:06:51 -08:00
tracing_map.c	tracing: Fix cmp_entries_dup() to respect sort() comparison rules	2024-12-04 10:38:24 -05:00
tracing_map.h	…