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author | Ingo Molnar <mingo@elte.hu> | 2009-02-04 16:54:56 +0300 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-02-04 16:54:56 +0300 |
commit | bb960a1e42042e82447a5bc0941b3ab6d614bac3 (patch) | |
tree | d2295a923fabb1b01b25bb015c4c2e42ee9df5ca /fs/sysfs/Kconfig | |
parent | 858770619debfb9269add63e4ba8b7c6b5538dd1 (diff) | |
parent | 06fc732c33a7ff5e4c91bcf4a6ca86b5e335ad9a (diff) | |
download | linux-bb960a1e42042e82447a5bc0941b3ab6d614bac3.tar.xz |
Merge branch 'core/xen' into x86/urgent
Diffstat (limited to 'fs/sysfs/Kconfig')
-rw-r--r-- | fs/sysfs/Kconfig | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/sysfs/Kconfig b/fs/sysfs/Kconfig new file mode 100644 index 000000000000..f4b67588b9d6 --- /dev/null +++ b/fs/sysfs/Kconfig @@ -0,0 +1,23 @@ +config SYSFS + bool "sysfs file system support" if EMBEDDED + default y + help + The sysfs filesystem is a virtual filesystem that the kernel uses to + export internal kernel objects, their attributes, and their + relationships to one another. + + Users can use sysfs to ascertain useful information about the running + kernel, such as the devices the kernel has discovered on each bus and + which driver each is bound to. sysfs can also be used to tune devices + and other kernel subsystems. + + Some system agents rely on the information in sysfs to operate. + /sbin/hotplug uses device and object attributes in sysfs to assist in + delegating policy decisions, like persistently naming devices. + + sysfs is currently used by the block subsystem to mount the root + partition. If sysfs is disabled you must specify the boot device on + the kernel boot command line via its major and minor numbers. For + example, "root=03:01" for /dev/hda1. + + Designers of embedded systems may wish to say N here to conserve space. |