linux-toradex.git/include/linux/trace_seq.h, branch tegra-10.9.9

tracing: Remove cpu arg from the rb_time_stamp() function

2009-10-24T09:07:51+00:00

The cpu argument is not used inside the rb_time_stamp() function.
Plus fix a typo.

Signed-off-by: Jiri Olsa 
Signed-off-by: Steven Rostedt 
Cc: Frederic Weisbecker 
LKML-Reference: <20091023233647.118547500@goodmis.org>
Signed-off-by: Ingo Molnar

tracing: fix undeclared 'PAGE_SIZE' in include/linux/trace_seq.h

2009-06-15T15:37:09+00:00

when compiling linux-mips with kmemtrace enabled, there will be an
error:

include/linux/trace_seq.h:12: error: 'PAGE_SIZE' undeclared here (not in
				a function)

I checked the source code and found trace_seq.h used PAGE_SIZE but not
included the relative header file, so, fix it via adding the header file


Acked-by: Frederic Weisbecker 
Acked-by: Pekka Enberg 
Signed-off-by: Wu Zhangjin 
LKML-Reference: <1244962350-28702-1-git-send-email-wuzhangjin@gmail.com>
Signed-off-by: Steven Rostedt

tracing: add trace_seq_vprint interface

2009-06-09T19:17:32+00:00

The code to update the print formats for events requires a vprintf
format in the trace_seq. This patch adds that interface.

Signed-off-by: Steven Rostedt

tracing: remove dangling semicolon

2009-04-20T16:59:29+00:00

Due to a cut and paste error, the trace_seq_putc had a semicolon
after the prototype but before the stub function when tracing is
disabled.

[Impact: fix compile error ]

Signed-off-by: Steven Rostedt

tracing: remove format attribute of inline function

2009-04-18T07:49:10+00:00

Due to a cut and paste error, I added the gcc attribute for printf
format to the static inline stub of trace_seq_printf.

This will cause a compile failure.

[ Impact: fix compiler error when CONFIG_TRACING is off ]

Reported-by: Ingo Molnar 
Signed-off-by: Steven Rostedt 
Cc: Andrew Morton 
Cc: =?ISO-8859-15?Q?Fr=E9d=E9ric_Weisbecker?= 
LKML-Reference: 
Signed-off-by: Ingo Molnar

tracing/events: add support for modules to TRACE_EVENT

2009-04-14T16:58:03+00:00

Impact: allow modules to add TRACE_EVENTS on load

This patch adds the final hooks to allow modules to use the TRACE_EVENT
macro. A notifier and a data structure are used to link the TRACE_EVENTs
defined in the module to connect them with the ftrace event tracing system.

It also adds the necessary automated clean ups to the trace events when a
module is removed.

Cc: Rusty Russell 
Signed-off-by: Steven Rostedt

tracing: make trace_seq operations available for core kernel

2009-04-14T16:57:57+00:00

In the process to make TRACE_EVENT macro work for modules, the trace_seq
operations must be available for core kernel code.

These operations are quite useful and can be used for other implementations.

The main idea is that we create a trace_seq handle that acts very much
like the seq_file handle.

	struct trace_seq *s = kmalloc(sizeof(*s, GFP_KERNEL);

	trace_seq_init(s);
	trace_seq_printf(s, "some data %d\n", variable);

	printk("%s", s->buffer);

The main use is to allow a top level function call several other functions
that may store printf like data into the buffer. Then at the end, the top
level function can process all the data with any method it would like to.
It could be passed to userspace, output via printk or even use seq_file:

	trace_seq_to_user(s, ubuf, cnt);
	seq_puts(m, s->buffer);

Signed-off-by: Steven Rostedt