K 10
svn:author
V 8
lstewart
K 8
svn:date
V 27
2011-12-01T07:19:13.938391Z
K 7
svn:log
V 707
Revise the sysctl handling code and restructure the hierarchy of sysctls
introduced when feed-forward clock support is enabled in the kernel:

- Rename the "choice" variable to "available".

- Streamline the implementation of the "active" variable's sysctl handler
  function.

- Create a kern.sysclock sysctl node for general sysclock related configuration
  options. Place the "available" and "active" variables under this node.

- Create a kern.sysclock.ffclock sysctl node for feed-forward clock specific
  configuration options. Place the "version" and "ffcounter_bypass" variables
  under this node.

- Tweak some of the description strings.

Discussed with:	Julien Ridoux (jridoux at unimelb edu au)

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