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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 17:02:07 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 17:02:07 -0800 |
commit | 40d7ee5d162203b40b5f4fbb312ab016edddb97f (patch) | |
tree | 432db33df85f7f244676127a189a828dfbf2877b /init | |
parent | 5fec8bdbf9a1c4df4ad3f20e52aa2d8caed490c8 (diff) | |
parent | b8ac9fc0e8cda9f9776019c5b0464b0c6d2d4c90 (diff) | |
download | kernel_samsung_espresso10-40d7ee5d162203b40b5f4fbb312ab016edddb97f.zip kernel_samsung_espresso10-40d7ee5d162203b40b5f4fbb312ab016edddb97f.tar.gz kernel_samsung_espresso10-40d7ee5d162203b40b5f4fbb312ab016edddb97f.tar.bz2 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (60 commits)
uio: make uio_info's name and version const
UIO: Documentation for UIO ioport info handling
UIO: Pass information about ioports to userspace (V2)
UIO: uio_pdrv_genirq: allow custom irq_flags
UIO: use pci_ioremap_bar() in drivers/uio
arm: struct device - replace bus_id with dev_name(), dev_set_name()
libata: struct device - replace bus_id with dev_name(), dev_set_name()
avr: struct device - replace bus_id with dev_name(), dev_set_name()
block: struct device - replace bus_id with dev_name(), dev_set_name()
chris: struct device - replace bus_id with dev_name(), dev_set_name()
dmi: struct device - replace bus_id with dev_name(), dev_set_name()
gadget: struct device - replace bus_id with dev_name(), dev_set_name()
gpio: struct device - replace bus_id with dev_name(), dev_set_name()
gpu: struct device - replace bus_id with dev_name(), dev_set_name()
hwmon: struct device - replace bus_id with dev_name(), dev_set_name()
i2o: struct device - replace bus_id with dev_name(), dev_set_name()
IA64: struct device - replace bus_id with dev_name(), dev_set_name()
i7300_idle: struct device - replace bus_id with dev_name(), dev_set_name()
infiniband: struct device - replace bus_id with dev_name(), dev_set_name()
ISDN: struct device - replace bus_id with dev_name(), dev_set_name()
...
Diffstat (limited to 'init')
-rw-r--r-- | init/Kconfig | 44 |
1 files changed, 27 insertions, 17 deletions
diff --git a/init/Kconfig b/init/Kconfig index 315a611..e7893b1 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -423,27 +423,37 @@ config SYSFS_DEPRECATED bool config SYSFS_DEPRECATED_V2 - bool "Create deprecated sysfs files" + bool "Create deprecated sysfs layout for older userspace tools" depends on SYSFS default y select SYSFS_DEPRECATED help - This option creates deprecated symlinks such as the - "device"-link, the <subsystem>:<name>-link, and the - "bus"-link. It may also add deprecated key in the - uevent environment. - None of these features or values should be used today, as - they export driver core implementation details to userspace - or export properties which can't be kept stable across kernel - releases. - - If enabled, this option will also move any device structures - that belong to a class, back into the /sys/class hierarchy, in - order to support older versions of udev and some userspace - programs. - - If you are using a distro with the most recent userspace - packages, it should be safe to say N here. + This option switches the layout of sysfs to the deprecated + version. + + The current sysfs layout features a unified device tree at + /sys/devices/, which is able to express a hierarchy between + class devices. If the deprecated option is set to Y, the + unified device tree is split into a bus device tree at + /sys/devices/ and several individual class device trees at + /sys/class/. The class and bus devices will be connected by + "<subsystem>:<name>" and the "device" links. The "block" + class devices, will not show up in /sys/class/block/. Some + subsystems will suppress the creation of some devices which + depend on the unified device tree. + + This option is not a pure compatibility option that can + be safely enabled on newer distributions. It will change the + layout of sysfs to the non-extensible deprecated version, + and disable some features, which can not be exported without + confusing older userspace tools. Since 2007/2008 all major + distributions do not enable this option, and ship no tools which + depend on the deprecated layout or this option. + + If you are using a new kernel on an older distribution, or use + older userspace tools, you might need to say Y here. Do not say Y, + if the original kernel, that came with your distribution, has + this option set to N. config PROC_PID_CPUSET bool "Include legacy /proc/<pid>/cpuset file" |