Masami Hiramatsu 2b3171ec5a tracing: Return -ENOENT if there is no target synthetic event ...

commit 18858511fd upstream.

Return -ENOENT error if there is no target synthetic event.
This notices an operation failure to user as below;

  # echo 'wakeup_latency u64 lat; pid_t pid;' > synthetic_events
  # echo '!wakeup' >> synthetic_events
  sh: write error: No such file or directory

Link: http://lkml.kernel.org/r/154013449986.25576.9487131386597290172.stgit@devbox

Acked-by: Tom Zanussi <zanussi@linux.intel.com>
Tested-by: Tom Zanussi <zanussi@linux.intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Rajvi Jingar <rajvi.jingar@intel.com>
Cc: stable@vger.kernel.org
Fixes: 4b147936fa ('tracing: Add support for 'synthetic' events')
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-11-13 11:08:56 -08:00

..

blktrace.c

Merge tag 'for-4.19/post-20180822' of git://git.kernel.dk/linux-block

2018-08-22 13:38:05 -07:00

bpf_trace.c

tracing: Add SPDX License format to bpf_trace.c

2018-08-16 19:07:36 -04:00

ftrace.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

Kconfig

Merge tag 'trace-v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2018-08-23 13:07:00 -07:00

Makefile

tracing: Allow gcov profiling on only ftrace subsystem

2018-08-21 09:11:49 -04:00

power-traces.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

preemptirq_delay_test.c

tracing: Use trace_clock_local() for looping in preemptirq_delay_test.c

2018-10-17 15:35:33 -04:00

ring_buffer_benchmark.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

ring_buffer.c

ring-buffer: Allow for rescheduling when removing pages

2018-09-17 18:15:11 -04:00

rpm-traces.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_benchmark.c

rcu: Rename cond_resched_rcu_qs() to cond_resched_tasks_rcu_qs()

2018-05-15 10:27:29 -07:00

trace_benchmark.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_branch.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_clock.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_entries.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_event_perf.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_events_filter_test.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_events_filter.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_events_hist.c

tracing: Return -ENOENT if there is no target synthetic event

2018-11-13 11:08:56 -08:00

trace_events_trigger.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_events.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_export.c

tracing: Add trigger file for trace_markers tracefs/ftrace/print

2018-05-29 08:28:53 -04:00

trace_functions_graph.c

tracing: Fix missing return symbol in function_graph output

2018-07-03 18:47:11 -04:00

trace_functions.c

tracing: Update stack trace skipping for ORC unwinder

2018-01-23 15:57:00 -05:00

trace_hwlat.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_irqsoff.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_kdb.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_kprobe_selftest.c

selftest/ftrace: Move kprobe selftest function to separate compile unit

2018-07-30 18:41:04 -04:00

trace_kprobe_selftest.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_kprobe.c

Merge tag 'trace-v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2018-08-23 13:07:00 -07:00

trace_mmiotrace.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_nop.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_output.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_output.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_preemptirq.c

tracing: More reverting of "tracing: Centralize preemptirq tracepoints and unify their usage"

2018-08-10 15:12:00 -04:00

trace_printk.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_probe.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_probe.h

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_sched_switch.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_sched_wakeup.c

Merge branch 'linus' into sched/core, to pick up fixes

2017-11-08 10:17:15 +01:00

trace_selftest_dynamic.c

ftrace: Mark function tracer test functions noinline/noclone

2018-01-23 15:57:29 -05:00

trace_selftest.c

Merge tag 'trace-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2017-11-17 14:58:01 -08:00

trace_seq.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace_stack.c

tracing: Fix the file mode of stack tracer

2018-05-03 11:58:05 -04:00

trace_stat.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_stat.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_syscalls.c

Merge tag 'trace-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2017-11-17 14:58:01 -08:00

trace_uprobe.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

trace.c

Merge tag 'trace-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2018-08-20 18:32:00 -07:00

trace.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

tracing_map.c

tracing: Add SPDX License format tags to tracing files

2018-08-16 19:08:06 -04:00

tracing_map.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00