14 Oct, 2008
2 commits
-
Need a marker_synchronize_unregister() before the end of exit() to make sure
every probe callers have exited the non preemptible section and thus are not
executing the probe code anymore.Signed-off-by: Mathieu Desnoyers
Signed-off-by: Ingo Molnar -
Tracepoint example code under samples/.
Signed-off-by: Mathieu Desnoyers
Acked-by: 'Peter Zijlstra'
Signed-off-by: Ingo Molnar
22 Jul, 2008
2 commits
-
We should call kobject_put() instead of kfree() if kobject_init_and_add()
returns an error, shouldn't we? Don't set up a bad example ;)Signed-off-by: Li Zefan
Signed-off-by: Greg Kroah-Hartman -
It's not like this stuff even builds right now, but this will make
Randy's scripts happy :)Cc: Randy Dunlap
Signed-off-by: Greg Kroah-Hartman
29 Apr, 2008
1 commit
-
Use proc_create() to make sure that ->proc_fops be setup before gluing PDE to
main tree.Signed-off-by: Denis V. Lunev
Cc: Mathieu Desnoyers
Cc: Alexey Dobriyan
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Apr, 2008
1 commit
-
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/juhl/trivial: (24 commits)
DOC: A couple corrections and clarifications in USB doc.
Generate a slightly more informative error msg for bad HZ
fix typo "is" -> "if" in Makefile
ext*: spelling fix prefered -> preferred
DOCUMENTATION: Use newer DEFINE_SPINLOCK macro in docs.
KEYS: Fix the comment to match the file name in rxrpc-type.h.
RAID: remove trailing space from printk line
DMA engine: typo fixes
Remove unused MAX_NODES_SHIFT
MAINTAINERS: Clarify access to OCFS2 development mailing list.
V4L: Storage class should be before const qualifier (sn9c102)
V4L: Storage class should be before const qualifier
sonypi: Storage class should be before const qualifier
intel_menlow: Storage class should be before const qualifier
DVB: Storage class should be before const qualifier
arm: Storage class should be before const qualifier
ALSA: Storage class should be before const qualifier
acpi: Storage class should be before const qualifier
firmware_sample_driver.c: fix coding style
MAINTAINERS: Add ati_remote2 driver
...Fixed up trivial conflicts in firmware_sample_driver.c
20 Apr, 2008
2 commits
-
This fixes up a number of coding style issues in the firmware sample files.
Yeah, it still doesn't build properly yet, that's next...
Cc: Randy Dunlap
Cc: Marcel Holtmann
Signed-off-by: Greg Kroah-Hartman -
Move the firmware_class sample drivers to samples/ so that they are
buildable and can be maintained.Signed-off-by: Randy Dunlap
Acked-by: Marcel Holtmann
Signed-off-by: Greg Kroah-Hartman
05 Mar, 2008
1 commit
-
Move kprobes examples from Documentation/kprobes.txt to under samples/.
Patch originally by Randy Dunlap.o Updated the patch to apply on 2.6.25-rc3
o Modified examples code to build on multiple architectures. Currently,
the kprobe and jprobe examples code works for x86 and powerpc
o Cleaned up unneeded #includes
o Cleaned up Kconfig per Sam Ravnborg's suggestions to fix build break
on archs that don't have kretprobes
o Implemented suggestions by Mathieu Desnoyers on CONFIG_KRETPROBES
o Included Andrew Morton's cleanup based on x86-git
o Modified kretprobe_example to act as a arch-agnostic module to
determine routine execution times:
Use 'modprobe kretprobe_example func=' to determine
execution time of func_name in nanoseconds.Signed-off-by: Randy Dunlap
Signed-off-by: Ananth N Mavinakayanahalli
Acked-by: Mathieu Desnoyers
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
14 Feb, 2008
1 commit
-
RCU style multiple probes support for the Linux Kernel Markers. Common case
(one probe) is still fast and does not require dynamic allocation or a
supplementary pointer dereference on the fast path.- Move preempt disable from the marker site to the callback.
Since we now have an internal callback, move the preempt disable/enable to the
callback instead of the marker site.Since the callback change is done asynchronously (passing from a handler that
supports arguments to a handler that does not setup the arguments is no
arguments are passed), we can safely update it even if it is outside the
preempt disable section.- Move probe arm to probe connection. Now, a connected probe is automatically
armed.Remove MARK_MAX_FORMAT_LEN, unused.
This patch modifies the Linux Kernel Markers API : it removes the probe
"arm/disarm" and changes the probe function prototype : it now expects a
va_list * instead of a "...".If we want to have more than one probe connected to a marker at a given
time (LTTng, or blktrace, ssytemtap) then we need this patch. Without it,
connecting a second probe handler to a marker will fail.It allow us, for instance, to do interesting combinations :
Do standard tracing with LTTng and, eventually, to compute statistics
with SystemTAP, or to have a special trigger on an event that would call
a systemtap script which would stop flight recorder tracing.Signed-off-by: Mathieu Desnoyers
Cc: Christoph Hellwig
Cc: Mike Mason
Cc: Dipankar Sarma
Cc: David Smith
Cc: "Paul E. McKenney"
Cc: "Frank Ch. Eigler"
Cc: Steven Rostedt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Jan, 2008
2 commits
-
This is a more complex example showing how to create a kset and a ktype
and some default attributes for a group of kobjects.Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
This is a simple kobject module, showing how to use kobj_attributes in
basic and more complex ways.Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman
15 Nov, 2007
1 commit
-
Add the field names to marker example format string.
Signed-off-by: Mathieu Desnoyers
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
20 Oct, 2007
2 commits
-
Module example showing how to use the Linux Kernel Markers.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Mathieu Desnoyers
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Begin infrastructure for kernel code samples in the samples/ directory.
Add its Kconfig and Kbuild files.
Source its Kconfig file in all arch/ Kconfigs.Signed-off-by: Randy Dunlap
Signed-off-by: Mathieu Desnoyers
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds