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author | Ingo Molnar <mingo@elte.hu> | 2009-02-12 13:08:57 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-02-12 13:08:57 +0100 |
commit | 871cafcc962fa1655c44b4f0e54d4c5cc14e273c (patch) | |
tree | fdb7bc65d2606c85b7be6c33ba0dfd5b4e472245 /fs/sysfs/Kconfig | |
parent | cf2592f59c0e8ed4308adbdb2e0a88655379d579 (diff) | |
parent | b578f3fcca1e78624dfb5f358776e63711d7fda2 (diff) |
Merge branch 'linus' into core/softlockup
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. |