linux-toradex.git/include/linux/module.h, branch v2.6.26-rc5

module: reduce module image and resident size

2008-05-01T11:14:59+00:00

Resulting reduction (x86-64, gcc 4.1.2) with my (special purpose, i.e.
much reduced) configurations:
- 16k kernel resident size
- 180k module resident size
- 10k module image size

Signed-off-by: Jan Beulich 
Signed-off-by: Rusty Russell

module: make module_sect_attrs private to kernel/module.c

2008-05-01T11:14:59+00:00

No-one else is using these afaics.

Signed-off-by: Jan Beulich 
Signed-off-by: Rusty Russell

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