Steven Rostedt (Red Hat) 23aaa3c18e tracing: Fix leak of ring buffer data when new instances creation fails ...

Yoshihiro Yunomae reported that the ring buffer data for a trace
instance does not get properly cleaned up when it fails. He proposed
a patch that manually cleaned the data up and addad a bunch of labels.
The labels are not needed because all trace array is allocated with
a kzalloc which initializes it to 0 and all kfree()s can take a NULL
pointer and will ignore it.

Adding a new helper function free_trace_buffers() that can also take
null buffers to free the buffers that were allocated by
allocate_trace_buffers().

Link: http://lkml.kernel.org/r/20140605223522.32311.31664.stgit@yunodevel

Reported-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2014-06-06 04:53:40 -04:00

..

blktrace.c

Merge tag 'trace-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-04-03 10:26:31 -07:00

ftrace.c

ftrace: Remove FTRACE_UPDATE_MODIFY_CALL_REGS flag

2014-05-14 11:37:30 -04:00

Kconfig

tracing: Add tracepoint benchmark tracepoint

2014-05-29 22:49:54 -04:00

Makefile

tracing: Add tracepoint benchmark tracepoint

2014-05-29 22:49:54 -04:00

power-traces.c

PM / tracing: remove deprecated power trace API

2013-01-26 00:39:12 +01:00

ring_buffer_benchmark.c

trace: Replace hardcoding of 19 with MAX_NICE

2014-02-27 12:41:03 +01:00

ring_buffer.c

trace, ring-buffer: Fix CPU hotplug callback registration

2014-03-20 13:43:48 +01:00

rpm-traces.c

…

trace_benchmark.c

tracing: Only calculate stats of tracepoint benchmarks for 2^32 times

2014-06-06 00:41:38 -04:00

trace_benchmark.h

tracing: Add tracepoint benchmark tracepoint

2014-05-29 22:49:54 -04:00

trace_branch.c

tracing: Update event filters for multibuffer

2013-11-05 16:50:20 -05:00

trace_clock.c

tracing: Add "uptime" trace clock that uses jiffies

2013-03-15 00:36:09 -04:00

trace_entries.h

tracing: Add trace_puts() for even faster trace_printk() tracing

2013-03-15 00:35:55 -04:00

trace_event_perf.c

perf: Disallow user-space stack dumps for function trace events

2014-03-11 11:57:58 +01:00

trace_events_filter_test.h

…

trace_events_filter.c

tracing: Add and use generic set_trigger_filter() implementation

2013-12-21 22:02:17 -05:00

trace_events_trigger.c

tracepoint: Use struct pointer instead of name hash for reg/unreg tracepoints

2014-04-08 20:43:28 -04:00

trace_events.c

tracing: Return error if ftrace_trace_arrays list is empty

2014-06-06 04:47:46 -04:00

trace_export.c

tracing: Fix anonymous unions in struct ftrace_event_call

2014-04-09 20:02:55 -04:00

trace_functions_graph.c

tracing: Add funcgraph_tail option to print function name after closing braces

2014-05-20 23:29:32 -04:00

trace_functions.c

tracing: Remove mock up poll wait function

2014-04-30 08:40:05 -04:00

trace_irqsoff.c

tracing: Allow irq/preempt tracers to be used by instances

2014-04-21 13:59:29 -04:00

trace_kdb.c

tracing: Consolidate max_tr into main trace_array structure

2013-03-15 00:35:40 -04:00

trace_kprobe.c

tracing/kprobes: Avoid self tests if tracing is disabled on boot up

2014-06-06 04:53:39 -04:00

trace_mmiotrace.c

tracing: Update event filters for multibuffer

2013-11-05 16:50:20 -05:00

trace_nop.c

tracing: Remove mock up poll wait function

2014-04-30 08:40:05 -04:00

trace_output.c

tracing: Add __bitmask() macro to trace events to cpumasks and other bitmasks

2014-05-15 11:29:37 -04:00

trace_output.h

tracing: Rename trace_event_mutex to trace_event_sem

2013-03-15 13:22:10 -04:00

trace_printk.c

tracing: Add __tracepoint_string() to export string pointers

2013-07-26 13:39:44 -04:00

trace_probe.c

tracing/uprobes: Add @+file_offset fetch method

2014-01-02 20:57:05 -05:00

trace_probe.h

tracing/uprobes: Support ftrace_event_file base multibuffer

2014-02-20 12:30:09 -05:00

trace_sched_switch.c

tracing: Update event filters for multibuffer

2013-11-05 16:50:20 -05:00

trace_sched_wakeup.c

tracing: Remove mock up poll wait function

2014-04-30 08:40:05 -04:00

trace_selftest_dynamic.c

…

trace_selftest.c

tracing: Add static to local functions

2014-04-21 14:00:46 -04:00

trace_stack.c

tracing: Print max callstack on stacktrace bug

2014-06-02 16:43:49 -04:00

trace_stat.c

trace/trace_stat: use rbtree postorder iteration helper instead of opencoding

2013-11-05 16:01:47 -05:00

trace_stat.h

…

trace_syscalls.c

tracing: Consolidate event trigger code

2014-01-09 21:20:07 -05:00

trace_uprobe.c

tracing/uprobes: Fix uprobe_cpu_buffer memory leak

2014-04-17 10:44:42 -04:00

trace.c

tracing: Fix leak of ring buffer data when new instances creation fails

2014-06-06 04:53:40 -04:00

trace.h

tracing: Return error if ftrace_trace_arrays list is empty

2014-06-06 04:47:46 -04:00