mirror-linux/kernel/trace
Steven Rostedt (Google) f58574f238 tracing: Have tracing_snapshot_instance_cond() write errors to the appropriate instance
[ Upstream commit 9d52727f80 ]

If a trace instance has a failure with its snapshot code, the error
message is to be written to that instance's buffer. But currently, the
message is written to the top level buffer. Worse yet, it may also disable
the top level buffer and not the instance that had the issue.

Link: https://lkml.kernel.org/r/20230405022341.688730321@goodmis.org

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ross Zwisler <zwisler@google.com>
Fixes: 2824f50332 ("tracing: Make the snapshot trigger work with instances")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-20 12:35:12 +02:00
..
rv rv/monitor: Add __init/__exit annotations to module init/exit funcs 2022-09-26 18:10:51 -04:00
Kconfig tracing: Fix complicated dependency of CONFIG_TRACER_MAX_TRACE 2023-01-07 11:11:48 +01:00
Makefile
blktrace.c trace/blktrace: fix memory leak with using debugfs_lookup() 2023-03-10 09:33:46 +01:00
bpf_trace.c bpf: Fix a possible task gone issue with bpf_send_signal[_thread]() helpers 2023-02-09 11:28:00 +01:00
bpf_trace.h
error_report-traces.c
fgraph.c
fprobe.c tracing/fprobe: Fix to check whether fprobe is registered correctly 2022-11-04 08:50:07 +09:00
ftrace.c ftrace: Fix issue that 'direct->addr' not restored in modify_ftrace_direct() 2023-04-13 16:55:32 +02:00
ftrace_internal.h
kprobe_event_gen_test.c tracing: Fix wrong return in kprobe_event_gen_test.c 2023-04-06 12:10:41 +02:00
pid_list.c
pid_list.h
power-traces.c
preemptirq_delay_test.c
rethook.c rethook: fix a potential memleak in rethook_alloc() 2022-11-18 10:15:34 +09:00
ring_buffer.c ring-buffer: Fix race while reader and writer are on the same page 2023-04-13 16:55:36 +02:00
ring_buffer_benchmark.c
rpm-traces.c
synth_event_gen_test.c tracing: Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event() 2022-11-17 17:51:38 -05:00
trace.c tracing: Have tracing_snapshot_instance_cond() write errors to the appropriate instance 2023-04-20 12:35:12 +02:00
trace.h tracing: Fix TASK_COMM_LEN in trace event format file 2023-02-14 19:11:54 +01:00
trace_benchmark.c tracing: Add numeric delta time to the trace event benchmark 2022-09-26 13:01:09 -04:00
trace_benchmark.h tracing: Add numeric delta time to the trace event benchmark 2022-09-26 13:01:09 -04:00
trace_boot.c
trace_branch.c
trace_clock.c
trace_dynevent.c tracing: Free buffers when a used dynamic event is removed 2022-11-23 19:07:12 -05:00
trace_dynevent.h
trace_entries.h
trace_eprobe.c tracing: Fix race where eprobes can be called before the event 2023-01-07 11:11:48 +01:00
trace_event_perf.c tracing/perf: Fix double put of trace event when init fails 2022-08-21 15:56:07 -04:00
trace_events.c tracing: Make trace_define_field_ext() static 2023-02-22 12:59:53 +01:00
trace_events_filter.c tracing/filter: Call filter predicate functions directly via a switch statement 2022-09-26 13:01:10 -04:00
trace_events_filter_test.h
trace_events_hist.c tracing: Do not let histogram values have some modifiers 2023-04-06 12:10:36 +02:00
trace_events_inject.c
trace_events_synth.c tracing/synthetic: Make lastcmd_mutex static 2023-04-13 16:55:35 +02:00
trace_events_trigger.c tracing: Fix to check event_mutex is held while accessing trigger list 2022-09-06 22:26:00 -04:00
trace_events_user.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
trace_export.c tracing: Fix TASK_COMM_LEN in trace event format file 2023-02-14 19:11:54 +01:00
trace_functions.c
trace_functions_graph.c
trace_hwlat.c tracing/hwlat: Replace sched_setaffinity with set_cpus_allowed_ptr 2023-03-30 12:48:59 +02:00
trace_irqsoff.c
trace_kdb.c
trace_kprobe.c tracing: Move duplicate code of trace_kprobe/eprobe.c into header 2022-10-12 13:50:00 -04:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_mmiotrace.c
trace_nop.c
trace_osnoise.c tracing/osnoise: Fix notify new tracing_max_latency 2023-04-13 16:55:34 +02:00
trace_output.c tracing: Make sure trace_printk() can output as soon as it can be used 2023-02-01 08:34:37 +01:00
trace_output.h
trace_preemptirq.c tracing: hold caller_addr to hardirq_{enable,disable}_ip 2022-09-06 22:26:00 -04:00
trace_printk.c
trace_probe.c tracing/probes: Handle system names with hyphens 2023-01-07 11:11:48 +01:00
trace_probe.h tracing/eprobe: Add eprobe filter support 2022-09-26 13:01:08 -04:00
trace_probe_kernel.h tracing: Add "(fault)" name injection to kernel probes 2022-10-12 13:50:20 -04:00
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 tracing: Remove unused __bad_type_size() method 2022-11-17 20:21:06 -05:00
trace_uprobe.c Tracing updates for 5.20 / 6.0 2022-08-05 09:41:12 -07:00
tracing_map.c tracing: Remove unused variable 'dups' 2022-10-03 12:20:31 -04:00
tracing_map.h