linux/kernel/trace
Frederic Weisbecker 1c80025a49 tracing/ftrace: change the type of the init() callback
Impact: extend the ->init() method with the ability to fail

This bring a way to know if the initialization of a tracer successed.
A tracer must return 0 on success and a traditional error (ie:
-ENOMEM) if it fails.

If a tracer fails to init, it is free to print a detailed warn. The
tracing api will not and switch to a new tracer will just return the
error from the init callback.

Note: this will be used for the return tracer.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-16 07:55:23 +01:00
..
Kconfig trace: rename unlikely profiler to branch profiler 2008-11-12 22:27:58 +01:00
Makefile ftrace: rename trace_unlikely.c file 2008-11-12 22:28:40 +01:00
ftrace.c ftrace: make filtered functions effective on setting 2008-11-16 07:37:46 +01:00
ring_buffer.c Merge branches 'tracing/fastboot', 'tracing/ftrace' and 'tracing/urgent' into tracing/core 2008-11-16 07:28:46 +01:00
trace.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace.h tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_boot.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_branch.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_functions.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_functions_return.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_irqsoff.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_mmiotrace.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_nop.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_sched_switch.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_sched_wakeup.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_selftest.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00
trace_selftest_dynamic.c ftrace: fix dynamic ftrace selftest 2008-05-23 21:13:23 +02:00
trace_stack.c ftrace: insert in the ftrace_preempt_disable()/enable() functions 2008-11-04 10:09:49 +01:00
trace_sysprof.c tracing/ftrace: change the type of the init() callback 2008-11-16 07:55:23 +01:00