kernel/samples, branch linux-2.6.28.y

markers: probe example, fix teardown

2008-10-14T08:38:30Z

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

tracing: tracepoints, samples

2008-10-14T08:29:05Z

Tracepoint example code under samples/. Signed-off-by: Mathieu Desnoyers Acked-by: 'Peter Zijlstra' Signed-off-by: Ingo Molnar

kobject: should use kobject_put() in kset-example

2008-07-22T04:54:56Z

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

Firmware: fix typo in example code

2008-07-22T04:54:41Z

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

samples: use non-racy method for /proc/marker-example creation

2008-04-29T15:06:21Z

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

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/juhl/trivial

2008-04-21T23:36:46Z

* '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

firmware: clean up samples for coding style issues

2008-04-20T02:10:21Z

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

firmware: move firmware_class from Documentation/ to samples/

2008-04-20T02:10:20Z

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

Kprobes: move kprobe examples to samples/

2008-03-05T00:35:11Z

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

Linux Kernel Markers: support multiple probes

2008-02-14T00:21:20Z

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