[PATCH 00/11] tracing: bugfix and kprobe-based dynamic event updates

From: Masami Hiramatsu
Date: Thu May 09 2013 - 01:46:55 EST


Hi,

Here is a series of updating kprobe-based dynamic event for
supporting soft-disabling mode and multiple buffers.
This also has some bugfixes of ftrace which I found
including an important deadlock fix.

I think uprobe-based events can also support multi-buffer
and soft-disabling as I did in this series.

---

Masami Hiramatsu (11):
[BUGFIX] tracing: Return 0 if event_enable_func succeeded
[BUGFIX] ftrace, kprobes: Fix a deadlock on ftrace_regex_lock
ftrace: Cleanup regex_lock and ftrace_lock around hash updating
[BUGFIX] tracing/kprobes: Fix to increment return event probe hit-count
tracing: Indicate enabled soft-mode in enable file
[BUGFIX] tracing: Modify soft-mode only if no other referrer
[TRIVIAL] tracing/kprobes: Use bool for retprobe checker
tracing/kprobes: Increment probe hit-count even if it is used by perf
tracing/kprobes: Pass trace_probe directly from dispatcher
tracing/kprobes: Support ftrace_event_file base multibuffer
tracing/kprobes: Support soft-mode disabling


include/linux/ftrace.h | 1
include/linux/ftrace_event.h | 1
kernel/kprobes.c | 1
kernel/trace/ftrace.c | 82 +++++++-----
kernel/trace/trace_events.c | 19 ++-
kernel/trace/trace_kprobe.c | 289 ++++++++++++++++++++++++++++++++++--------
6 files changed, 305 insertions(+), 88 deletions(-)

--
Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
IT Management Research Dept. and Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
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