19 Jul, 2007
1 commit
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This allows the uevent file to handle any type of uevent action to be
triggered by userspace instead of just the "add" uevent.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman
12 Jul, 2007
1 commit
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As kobj sysfs dentries and inodes are gonna be made reclaimable,
dentry can't be used as naming token for sysfs file/directory, replace
kobj->dentry with kobj->sd. The only external interface change is
shadow directory handling. All other changes are contained in kobj
and sysfs.Signed-off-by: Tejun Heo
Signed-off-by: Greg Kroah-Hartman
03 May, 2007
1 commit
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We need to work on cleaning up the relationship between kobjects, ksets and
ktypes. The removal of 'struct subsystem' is the first step of this,
especially as it is not really needed at all.Thanks to Kay for fixing the bugs in this patch.
Signed-off-by: Greg Kroah-Hartman
28 Apr, 2007
3 commits
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This patch contains the overdue removal of the mount/umount uevents.
Signed-off-by: Adrian Bunk
Signed-off-by: Greg Kroah-Hartman -
It isn't used at all by the driver core anymore, and the few usages of
it within the kernel have now all been fixed as most of them were using
it incorrectly. So remove it.Now the whole struct subsys can be removed from the system, but that's
for a later patch...Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
- uses a kset in "struct class" to keep track of all directories
belonging to this class
- merges with the /sys/devices/virtual logic.
- removes the namespace-dir if the last member of that class
leaves the directory.There may be locking or refcounting fixes left, I stopped when it seemed
to work with network and sound modules. :)From: Kay Sievers
Signed-off-by: Greg Kroah-Hartman
08 Feb, 2007
1 commit
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The problem. When implementing a network namespace I need to be able
to have multiple network devices with the same name. Currently this
is a problem for /sys/class/net/*.What I want is a separate /sys/class/net directory in sysfs for each
network namespace, and I want to name each of them /sys/class/net.I looked and the VFS actually allows that. All that is needed is
for /sys/class/net to implement a follow link method to redirect
lookups to the real directory you want.Implementing a follow link method that is sensitive to the current
network namespace turns out to be 3 lines of code so it looks like a
clean approach. Modifying sysfs so it doesn't get in my was is a bit
trickier.I am calling the concept of multiple directories all at the same path
in the filesystem shadow directories. With the directory entry really
at that location the shadow master.The following patch modifies sysfs so it can handle a directory
structure slightly different from the kobject tree so I can implement
the shadow directories for handling /sys/class/net/.Signed-off-by: Eric W. Biederman
Cc: Maneesh Soni
Signed-off-by: Greg Kroah-Hartman
21 Dec, 2006
1 commit
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Since kobject_uevent() function does not return an integer value to
indicate if its operation was completed with success or not, it is worth
changing it in order to report a proper status (success or error) instead
of returning void.[randy.dunlap@oracle.com: Fix inline kobject functions]
Cc: Mauricio Lin
Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman
02 Dec, 2006
1 commit
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Provide a function device_move() to move a device to a new parent device. Add
auxilliary functions kobject_move() and sysfs_move_dir().
kobject_move() generates a new uevent of type KOBJ_MOVE, containing the
previous path (DEVPATH_OLD) in addition to the usual values. For this, a new
interface kobject_uevent_env() is created that allows to add further
environmental data to the uevent at the kobject layer.Signed-off-by: Cornelia Huck
Acked-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman
26 Sep, 2006
1 commit
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We're getting a lot of crashes in the sysfs/kobject/device/bus/class code and
they're very hard to diagnose.I'm suspecting that in some cases this is because drivers aren't checking
return values and aren't handling errors correctly. So the code blithely
blunders on and crashes later in very obscure ways.There's just no reason to ignore errors which can and do occur. So the patch
sprinkles __must_check all over these APIs.Causes 1,513 new warnings. Heh.
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman
04 Aug, 2006
1 commit
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Remove uevent dock notifications. There are no consumers
of these events at present, and uevents are likely not the
correct way to send this type of event anyway.Until I get some kind of idea if anyone in userspace cares
about dock events, I will just not send any.Signed-off-by: Kristen Carlson Accardi
Signed-off-by: Greg Kroah-Hartman
27 Jun, 2006
1 commit
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so that userspace can be notified of dock and undock events.
Signed-off-by: Kristen Carlson Accardi
Signed-off-by: Greg Kroah-Hartman
Signed-off-by: Andrew Morton
Signed-off-by: Len Brown
22 Jun, 2006
1 commit
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To have a home for all hypervisors, this patch creates /sys/hypervisor.
A new config option SYS_HYPERVISOR is introduced, which should to be set
by architecture dependent hypervisors (e.g. s390 or Xen).Acked-by: Martin Schwidefsky
Signed-off-by: Michael Holzheu
Signed-off-by: Greg Kroah-Hartman
28 Apr, 2006
2 commits
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This patch contains the following possible cleanups:
- #if 0 the following unused global function:
- subsys_remove_file()
- remove the following unused EXPORT_SYMBOL's:
- kset_find_obj
- subsystem_init
- remove the following unused EXPORT_SYMBOL_GPL:
- kobject_add_dirSigned-off-by: Adrian Bunk
Signed-off-by: Greg Kroah-Hartman -
This fixes a build error for various odd combinations of CONFIG_HOTPLUG
and CONFIG_NET.Signed-off-by: Kay Sievers
Cc: Nigel Cunningham
Cc: Andrew Morton
Signed-off-by: Greg Kroah-Hartman
15 Apr, 2006
1 commit
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It works like this:
Open the file
Read all the contents.
Call poll requesting POLLERR or POLLPRI (so select/exceptfds works)
When poll returns,
close the file and go to top of loop.
or lseek to start of file and go back to the 'read'.Events are signaled by an object manager calling
sysfs_notify(kobj, dir, attr);If the dir is non-NULL, it is used to find a subdirectory which
contains the attribute (presumably created by sysfs_create_group).This has a cost of one int per attribute, one wait_queuehead per kobject,
one int per open file.The name "sysfs_notify" may be confused with the inotify
functionality. Maybe it would be nice to support inotify for sysfs
attributes as well?This patch also uses sysfs_notify to allow /sys/block/md*/md/sync_action
to be pollableSigned-off-by: Neil Brown
Signed-off-by: Greg Kroah-Hartman
21 Mar, 2006
2 commits
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Adding kobject_add_dir() function which creates a subdirectory
for a given kobject.Signed-off-by: Jun'ichi Nomura
Signed-off-by: Greg Kroah-Hartman -
It shouldn't cause real harm, but it hurts my eyes.
Signed-off-by: Adrian Bunk
Signed-off-by: Greg Kroah-Hartman
23 Feb, 2006
1 commit
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This change reverts the 033b96fd30db52a710d97b06f87d16fc59fee0f1 commit
from Kay Sievers that removed the mount/umount uevents from the kernel.
Some older versions of HAL still depend on these events to detect when a
new device has been mounted. These events are not correctly emitted,
and are broken by design, and so, should not be relied upon by any
future program. Instead, the /proc/mounts file should be polled to
properly detect this kind of event.A feature-removal-schedule.txt entry has been added, noting when this
interface will be removed from the kernel.Signed-off-by: Greg Kroah-Hartman
05 Jan, 2006
5 commits
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lib/lib.a(kobject_uevent.o)(.text+0x25f): In function `kobject_uevent':
: undefined reference to `__alloc_skb'
lib/lib.a(kobject_uevent.o)(.text+0x2a1): In function `kobject_uevent':
: undefined reference to `skb_over_panic'
lib/lib.a(kobject_uevent.o)(.text+0x31d): In function `kobject_uevent':
: undefined reference to `skb_over_panic'
lib/lib.a(kobject_uevent.o)(.text+0x356): In function `kobject_uevent':
: undefined reference to `netlink_broadcast'
lib/lib.a(kobject_uevent.o)(.init.text+0x9): In function `kobject_uevent_init':
: undefined reference to `netlink_kernel_create'
make: *** [.tmp_vmlinux1] Error 1Netlink is unconditionally enabled if CONFIG_NET, so that's OK.
kobject_uevent.o is compiled even if !CONFIG_HOTPLUG, which is lazy.
Let's compound the sin.
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
Leave the overloaded "hotplug" word to susbsystems which are handling
real devices. The driver core does not "plug" anything, it just exports
the state to userspace and generates events.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
The distinction between hotplug and uevent does not make sense these
days, netlink events are the default.udev depends entirely on netlink uevents. Only during early boot and
in initramfs, /sbin/hotplug is needed. So merge the two functions and
provide only one interface without all the options.The netlink layer got a nice generic interface with named slots
recently, which is probably a better facility to plug events for
subsystem specific events.
Also the new poll() interface to /proc/mounts is a nicer way to
notify about changes than sending events through the core.
The uevents should only be used for driver core related requests to
userspace now.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
The names of these events have been confusing from the beginning
on, as they have been more like claim/release events. We needed these
events for noticing HAL if storage devices have been mounted.Thanks to Al, we have the proper solution now and can poll()
/proc/mounts instead to get notfied about mount tree changes.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
It makes zero sense to have hotplug, but not the netlink
events enabled today. Remove this option and merge the
kobject_uevent.h header into the kobject.h header file.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman
28 Oct, 2005
1 commit
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Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds
21 Jun, 2005
2 commits
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kobject: change name() method in kset_hotplug_ops return const char *
since users shoudl not try to modify returned data.Signed-off-by: Dmitry Torokhov
Signed-off-by: Greg Kroah-Hartman -
kobject: make kobject's name const char * since users should not
attempt to change it (except by calling kobject_rename).Signed-off-by: Dmitry Torokhov
Signed-off-by: Greg Kroah-Hartman
17 Apr, 2005
1 commit
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
