The policy for this source tree is that the code should compile
cleanly against the latest full Linux kernel release.  For example, if
the latest official kernel from Linus is 2.6.10, the tree will build
and run against kernel 2.6.10, but the tree may not build with either
older kernels such as 2.6.9 or prereleases such as 2.6.11-rc1.
