[RFC] kobject and kset core changes and cleanups

Greg KH
2007-11-02T23:58:56Z

So, I go on vacation for a week or so and come back to an overflowing
inbox. Instead of trying to wade through all of that, I decide to
finish up the work Kay and I had started on cleaning up the kset core
code.

Here's a large patch series that is in my tree and should be for 2.6.25.
It does quite a few things:
- lots of struct kset work and cleanup. It's much simpler now
and will be documented while I still remember what is going
one...
- almost all (only 5 left) struct kset are dynamically created
with the new function call, kset_create_and_register(). This
fixes up a lot of issues with static kobjects in structures
and other messy things like that.
- struct bus_type is now split into two, a static and a dynamic
part. The dynamic part is under control of the driver core,
and handles the ksets. The static part is under control of
the bus that defined it.
- decl_subsys() is now gone and buried, good riddance
- subsys_attribute is now gone and replaced with:
- kobj_attribute is now availble to make attributes for kobjects
MUCH simpler than ever before. I've cleaned up some portions
of the kernel, and all older users of subsys_attribute have
been fixed. This takes away one of the biggest complaints
about dealing with "raw" kobjects.
- firmware subsystem has been all but removed as it was
pointless.

I'm posting the patches here so that people can take a look at them and
not be surprised when they go in to 2.6.25 in a few months and show up
in the next -mm releases.

One note, the efivars sysfs file removal patch is incorrect, and I'll be
fixing that up properly, so Matt, don't worry, I haven't forgotten :)

And hey, with all this work, we ended up removing more code than we
added, always a very good thing.

Now, on to face that scary inbox...

thanks,

greg k-h

---------------

Documentation/vm/slabinfo.c | 2 +-
Documentation/vm/slub.txt | 2 +-
arch/arm/mach-omap1/pm.c | 23 ++---
arch/powerpc/platforms/pseries/power.c | 33 ++---
arch/s390/hypfs/inode.c | 15 ++-
arch/s390/kernel/ipl.c | 149 +++++++++++++----------
block/genhd.c | 5 +-
drivers/acpi/bus.c | 12 ++-
drivers/acpi/system.c | 2 +-
drivers/base/base.h | 32 +++++-
drivers/base/bus.c | 142 +++++++++++++--------
drivers/base/class.c | 27 +++--
drivers/base/core.c | 24 ++--
drivers/base/dd.c | 4 +-
drivers/base/driver.c | 2 +-
drivers/base/firmware.c | 27 ++---
drivers/base/hypervisor.c | 14 ++-
drivers/base/platform.c | 4 +-
drivers/base/power/shutdown.c | 2 +-
drivers/base/sys.c | 31 ++---
drivers/edac/edac_mc_sysfs.c | 2 +-
drivers/firmware/edd.c | 15 ++-
drivers/firmware/efivars.c | 214 ++++---------------------------
drivers/parisc/pdc_stable.c | 186 ++++++++++++++--------------
drivers/pci/hotplug/acpiphp_ibm.c | 4 +-
drivers/pci/hotplug/pci_hotplug_core.c | 22 ++--
drivers/pci/hotplug/rpadlpar_sysfs.c | 2 +-
drivers/pci/probe.c | 11 +-
drivers/uio/uio.c | 2 +-
fs/configfs/mount.c | 14 +-
fs/debugfs/inode.c | 14 +-
fs/dlm/lockspace.c | 22 ++--
fs/ecryptfs/main.c | 130 +++----------------
fs/fuse/inode.c | 27 +++--
fs/gfs2/locking/dlm/sysfs.c | 24 ++--
fs/gfs2/sys.c | 15 +--
fs/namespace.c | 14 ++-
fs/ocfs2/cluster/masklog.c | 4 +-
fs/ocfs2/cluster/sys.c | 83 +++---------
fs/sysfs/file.c | 65 ++--------
include/acpi/acpi_bus.h | 2 +-
include/linux/device.h | 21 +---
include/linux/fs.h | 2 +-
include/linux/kobject.h | 76 ++++--------
include/linux/module.h | 3 +-
include/linux/pci_hotplug.h | 2 +-
include/linux/sched.h | 9 +-
kernel/ksysfs.c | 83 ++++++++-----
kernel/module.c | 6 +-
kernel/params.c | 26 ++---
kernel/power/disk.c | 20 ++-
kernel/power/main.c | 24 ++--
kernel/power/power.h | 4 +-
kernel/user.c | 104 ++++++++--------
lib/kobject.c | 129 +++++++++++++++++---
mm/slub.c | 20 ++--
security/inode.c | 12 +-
57 files changed, 900 insertions(+), 1065 deletions(-)

---------------

Greg Kroah-Hartman (50):
ecryptfs: clean up attribute mess
KOBJECT: remove struct kobj_type from struct kset
KOBJECT: remove kobj_set_kset_s as no one is using it anymore
kset: add kset_create_and_register function
kset: convert fuse to use kset_create
kset: convert securityfs to use kset_create
kset: convert debugfs to use kset_create
kset: convert configfs to use kset_create
kset: convert ecryptfs to use kset_create
kset: convert main fs kset to use kset_create
kset: convert gfs2 to use kset_create
kset: convert gfs2 dlm to use kset_create
kset: convert dlm to use kset_create
kset: convert pci hotplug to use kset_create_and_register
kset: remove decl_subsys_name
kset: convert kernel_subsys to use kset_create
kset: convert drivers/base/bus.c kset_create_and_register
kset: convert drivers/base/class.c kset_create_and_register
kset: convert drivers/base/firmware.c kset_create_and_register
kset: convert /sys/devices to use kset_create
kset: convert /sys/hypervisor to use kset_create
kset: convert /sys/devices/system to use kset_create
kset: convert slub to use kset_create
kset: move /sys/slab to /sys/kernel/slab
kset: convert /sys/module to use kset_create
kset: convert /sys/power to use kset_create
kset: convert s390 hypervisor kset to use kset_create
kset: convert struct bus_device->devices to use kset_create
kset: convert struct bus_device->drivers to use kset_create
driver core: remove owner field from struct bus_type
driver core: add way to get to bus kset
driver core: add way to get to bus device klist
driver core: remove fields from struct bus_type
ecryptfs: remove version_str file from sysfs
efivars: remove new_var and del_var files from sysfs
kobject: convert efivars to kobj_attr interface
firmware: export firmware_kset so that people can use that instead of the braindead firmware_register interface
kset: convert efivars to use kset_create for the efi subsystem.
kset: convert efivars to use kset_create for the vars sub-subsystem.
kobject: convert arm/mach-omap1/pm.c to kobj_attr interface
kobject: convert pseries/power.c to kobj_attr interface
kobject: convert s390 ipl.c to kobj_attr interface
kset: convert s390 ipl.c to use kset_create
kobject: convert parisc/pdc_stable to kobj_attr interface
kset: convert parisc/pdc_stable.c to use kset_create
kset: convert edd to use kset_create
kset: convert acpi to use kset_create
firmware: remove firmware_(un)register()
kset: convert ocfs2 to use kset_create
kset: remove decl_subsys macro

Kay Sievers (4):
Driver Core: add kobj_attribute handling
Driver Core: switch all dynamic ksets to kobj_sysfs_ops
fix struct user_info export's sysfs interaction
Driver Core: kill subsys_attribute and default sysfs ops