kernel/linux.git/include/linux/module.h, branch v2.6.25.2

fix module_update_markers() compile error

2008-02-15T04:58:04+00:00

This patch fixes the following compile error with CONFIG_MODULES=n caused by commit fb40bd78b0f91b274879cf5db8facd1e04b6052e: /home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/marker.c: In function `marker_update_probes': /home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/marker.c:627: error: too few arguments to function `module_update_markers' Signed-off-by: Adrian Bunk Acked-by: Mathieu Desnoyers Cc: Paul Mundt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Linux Kernel Markers: support multiple probes

2008-02-14T00:21:20+00:00

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

fix "modules: make module_address_lookup() safe"

2008-02-08T17:22:24+00:00

Get the constness right, avoid nasty cast. Cc: Ingo Molnar Cc: Kyle McMartin Cc: Rusty Russell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild

2008-01-29T11:46:14+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (79 commits) Remove references to "make dep" kconfig: document use of HAVE_* Introduce new section reference annotations tags: __ref, __refdata, __refconst kbuild: warn about ld added unique sections kbuild: add verbose option to Section mismatch reporting in modpost kconfig: tristate choices with mixed tristate and boolean values asm-generic/vmlix.lds.h: simplify __mem{init,exit}* dependencies remove __attribute_used__ kbuild: support ARCH=x86 in buildtar kconfig: remove "enable" kbuild: simplified warning report in modpost kbuild: introduce a few helpers in modpost kbuild: use simpler section mismatch warnings in modpost kbuild: link vmlinux.o before kallsyms passes kbuild: introduce new option to enhance section mismatch analysis Use separate sections for __dev/__cpu/__mem code/data compiler.h: introduce __section() all archs: consolidate init and exit sections in vmlinux.lds.h kbuild: check section names consistently in modpost kbuild: introduce blacklisting in modpost ...

module: make module_address_lookup safe

2008-01-29T06:13:23+00:00

module_address_lookup releases preemption then returns a pointer into the module space. The only user (kallsyms) copies the result, so just do that under the preempt disable. Signed-off-by: Rusty Russell

remove __attribute_used__

2008-01-28T22:21:18+00:00

Remove the deprecated __attribute_used__. [Introduce __section in a few places to silence checkpatch /sam] Signed-off-by: Adrian Bunk Signed-off-by: Sam Ravnborg

Driver core: move the driver specific module code into the driver core

2008-01-25T04:40:35+00:00

The module driver specific code should belong in the driver core, not in the kernel/ directory. So move this code. This is done in preparation for some struct device_driver rework that should be confined to the driver core code only. This also lets us keep from exporting these functions, as no external code should ever be calling it. Thanks to Andrew Morton for the !CONFIG_MODULES fix. Signed-off-by: Greg Kroah-Hartman

kset: convert /sys/module to use kset_create

2008-01-25T04:40:16+00:00

Dynamically create the kset instead of declaring it statically. We also rename module_subsys to module_kset to catch all users of the variable. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman

Linux Kernel Markers

2007-10-19T18:53:54+00:00

The marker activation functions sits in kernel/marker.c. A hash table is used to keep track of the registered probes and armed markers, so the markers within a newly loaded module that should be active can be activated at module load time. marker_query has been removed. marker_get_first, marker_get_next and marker_release should be used as iterators on the markers. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Mathieu Desnoyers Acked-by: "Frank Ch. Eigler" Cc: Christoph Hellwig Cc: Rusty Russell Cc: Mike Mason Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Add /sys/module/name/notes

2007-10-17T15:42:50+00:00

This patch adds the /sys/module//notes/ magic directory, which has a file for each allocated SHT_NOTE section that appears in .ko. This is the counterpart for each module of /sys/kernel/notes for vmlinux. Reading this delivers the contents of the module's SHT_NOTE sections. This lets userland easily glean any detailed information about that module's build that was stored there at compile time (e.g. by ld --build-id). Signed-off-by: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds