linux-toradex.git/include/linux/tracepoint.h, branch tegra-10.7.1

tracing: Fix a comment and a trivial format issue in tracepoint.h

2009-09-22T21:14:58+00:00

Fix the tracepoint documentation path in tracepoints headers and
a misaligned tabulation.

Signed-off-by: Li Hong 
Cc: Steven Rostedt 
Cc: Ingo Molnar 
LKML-Reference: <3a3680030909220300h7cf18849q4d4702b9d4feaa67@mail.gmail.com>
Signed-off-by: Frederic Weisbecker

Merge branch 'tracing/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/core

2009-08-26T06:29:02+00:00

Conflicts:
	include/linux/tracepoint.h

Signed-off-by: Ingo Molnar

tracing: add comments to explain TRACE_EVENT out of protection

2009-08-26T04:32:37+00:00

The commit:
  commit 5ac35daa9343936038a3c9c4f4d6d3fe6a2a7bd8
  Author: Xiao Guangrong 
  tracing/events: fix the include file dependencies

Moved the TRACE_EVENT out of the ifdef protection of tracepoints.h
but uses the define of TRACE_EVENT itself as protection. This patch
adds comments to explain why.

Signed-off-by: Steven Rostedt

tracing/events: fix the include file dependencies

2009-08-26T04:32:09+00:00

The TRACE_EVENT depends on the include/linux/tracepoint.h first
and include/trace/ftrace.h later, if we include the ftrace.h early,
a building error will occur.

Both define TRACE_EVENT in trace_a.h and trace_b.h, if we include
those in .c file, like this:

#define CREATE_TRACE_POINTS
include 
include 

The above will not work, because the TRACE_EVENT was re-defined by
the previous .h file.

Reported-by: Wei Yongjun 
Signed-off-by: Xiao Guangrong 
LKML-Reference: <4A937F5E.3020802@cn.fujitsu.com>
Signed-off-by: Steven Rostedt

tracing: Move tracepoint callbacks from declaration to definition

2009-08-25T22:36:41+00:00

It's not strictly correct for the tracepoint reg/unreg callbacks to
occur when a client is hooking up, because the actual tracepoint may not
be present yet.  This happens to be fine for syscall, since that's in
the core kernel, but it would cause problems for tracepoints defined in
a module that hasn't been loaded yet.  It also means the reg/unreg has
to be EXPORTed for any modules to use the tracepoint (as in SystemTap).

This patch removes DECLARE_TRACE_WITH_CALLBACK, and instead introduces
DEFINE_TRACE_FN which stores the callbacks in struct tracepoint.  The
callbacks are used now when the active state of the tracepoint changes
in set_tracepoint & disable_tracepoint.

This also introduces TRACE_EVENT_FN, so ftrace events can also provide
registration callbacks if needed.

Signed-off-by: Josh Stone 
Cc: Jason Baron 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Li Zefan 
Cc: Steven Rostedt 
Cc: Peter Zijlstra 
Cc: Mathieu Desnoyers 
Cc: Jiaying Zhang 
Cc: Martin Bligh 
Cc: Lai Jiangshan 
Cc: Paul Mundt 
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
LKML-Reference: <1251150194-1713-4-git-send-email-jistone@redhat.com>
Signed-off-by: Frederic Weisbecker

tracing: Add DECLARE_TRACE_WITH_CALLBACK() macro

2009-08-11T18:35:26+00:00

Introduce a new 'DECLARE_TRACE_WITH_CALLBACK()' macro, so that
tracepoints can associate an external register/unregister function.

This prepares for the syscalls tracer conversion to trace events. We
will need to perform arch level operations once a syscall event is
turned on/off, such as TIF flags setting, hence the need of such
specific callbacks.

Signed-off-by: Jason Baron 
Cc: Lai Jiangshan 
Cc: Steven Rostedt 
Cc: Peter Zijlstra 
Cc: Mathieu Desnoyers 
Cc: Jiaying Zhang 
Cc: Martin Bligh 
Cc: Li Zefan 
Cc: Masami Hiramatsu 
Signed-off-by: Frederic Weisbecker

debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.

2009-06-16T04:30:28+00:00

Many developers use "/debug/" or "/debugfs/" or "/sys/kernel/debug/"
directory name to mount debugfs filesystem for ftrace according to
./Documentation/tracers/ftrace.txt file.

And, three directory names(ex:/debug/, /debugfs/, /sys/kernel/debug/) is
existed in kernel source like ftrace, DRM, Wireless, Documentation,
Network[sky2]files to mount debugfs filesystem.

debugfs means debug filesystem for debugging easy to use by greg kroah
hartman. "/sys/kernel/debug/" name is suitable as directory name
of debugfs filesystem.
- debugfs related reference: http://lwn.net/Articles/334546/

Fix inconsistency of directory name to mount debugfs filesystem.

* From Steven Rostedt
  - find_debugfs() and tracing_files() in this patch.

Signed-off-by: GeunSik Lim 
Acked-by     : Inaky Perez-Gonzalez 
Reviewed-by  : Steven Rostedt 
Reviewed-by  : James Smart 
CC: Jiri Kosina 
CC: David Airlie 
CC: Peter Osterlund 
CC: Ananth N Mavinakayanahalli 
CC: Anil S Keshavamurthy 
CC: Masami Hiramatsu 
Signed-off-by: Greg Kroah-Hartman

tracing: remove deprecated TRACE_FORMAT

2009-04-24T15:50:39+00:00

The TRACE_FORMAT macro has been deprecated by the TRACE_EVENT macro.
There are no more users. All new users must use the TRACE_EVENT macro.

[ Impact: remove old functionality ]

Cc: Peter Zijlstra 
Signed-off-by: Steven Rostedt

tracing: consolidate trace and trace_event headers

2009-04-14T13:43:40+00:00

Impact: clean up

Neil Horman (et. al.) criticized the way the trace events were broken up
into two files. The reason for that was that ftrace needed to separate out
the declarations from where the #include  was used.
It then dawned on me that the tracepoint.h header only needs to define the
TRACE_EVENT macro if it is not already defined.

The solution is simply to test if TRACE_EVENT is defined, and if it is not
then the linux/tracepoint.h header can define it. This change consolidates
all the .h and _event_types.h into the .h file.

Reported-by: Neil Horman 
Reported-by: Theodore Tso 
Reported-by: Jiaying Zhang 
Cc: Zhaolei 
Cc: Frederic Weisbecker 
Cc: Peter Zijlstra 
Cc: Jason Baron 
Cc: Mathieu Desnoyers 
Signed-off-by: Steven Rostedt

tracing: remove funky whitespace in the trace code

2009-03-10T18:13:14+00:00

Impact: clean up

There existed a lot of 's in the tracing code. This
patch removes them.

Signed-off-by: Steven Rostedt