linux-stable.git/include/linux/module.h, branch linux-2.6.24.y

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

Remove "unsafe" from module struct

2007-10-17T15:42:49+00:00

Adrian Bunk points out that "unsafe" was used to mark modules touched by
the deprecated MOD_INC_USE_COUNT interface, which has long gone.  It's time
to remove the member from the module structure, as well.

If you want a module which can't unload, don't register an exit function.

(Vlad Yasevich says SCTP is now safe to unload, so just remove the
__unsafe there).

Signed-off-by: Rusty Russell 
Acked-by: Shannon Nelson 
Acked-by: Dan Williams 
Acked-by: Vlad Yasevich 
Cc: Sridhar Samudrala 
Cc: Adrian Bunk 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Remove unnecessary includes of spinlock.h under include/linux

2007-07-16T16:05:42+00:00

Remove the obviously unnecessary includes of  under the
include/linux/ directory, and fix the couple errors that are introduced as
a result of that.

Signed-off-by: Robert P. J. Day 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

module_author: don't advise putting in an email address

2007-05-11T15:29:35+00:00

module_author: don't advise putting in an email address

It's information that's easily outdated and easily mistaken for a driver
contact which is a problem especially for modules with multiple current and
non-current authors as well as for modules with a maintainer who may not
even be a module author.

Signed-off-by: Rene Herman 
Cc: Rusty Russell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Allow arch to initialize arch field of the module structure

2007-05-09T19:30:56+00:00

This will later allow an arch to add module specific information via linker
generated tables instead of poking directly in the module object structure.

Signed-off-by: Roman Zippel 
Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Fix race between cat /proc/slab_allocators and rmmod

2007-05-08T18:15:08+00:00

Same story as with cat /proc/*/wchan race vs rmmod race, only
/proc/slab_allocators want more info than just symbol name.

Signed-off-by: Alexey Dobriyan 
Acked-by: Rusty Russell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Fix race between cat /proc/*/wchan and rmmod et al

2007-05-08T18:15:08+00:00

kallsyms_lookup() can go iterating over modules list unprotected which is OK
for emergency situations (oops), but not OK for regular stuff like
/proc/*/wchan.

Introduce lookup_symbol_name()/lookup_module_symbol_name() which copy symbol
name into caller-supplied buffer or return -ERANGE.  All copying is done with
module_mutex held, so...

Signed-off-by: Alexey Dobriyan 
Cc: Rusty Russell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Fix race between rmmod and cat /proc/kallsyms

2007-05-08T18:15:08+00:00

module_get_kallsym() leaks "struct module *" outside of module_mutex which is
no-no, because module can dissapear right after mutex unlock.

Copy all needed information from inside module_mutex into caller-supplied
space.

[bunk@stusta.de: is_exported() can now become static]
Signed-off-by: Alexey Dobriyan 
Cc: Rusty Russell 
Signed-off-by: Adrian Bunk 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Simplify module_get_kallsym() by dropping length arg

2007-05-08T18:15:08+00:00

module_get_kallsym() could in theory truncate module symbol name to fit in
buffer, but nobody does this.  Always use KSYM_NAME_LEN + 1 bytes for name.

Suggested by lg^WRusty.

Signed-off-by: Alexey Dobriyan 
Acked-by: Rusty Russell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds