As of 2.6.27 kernels the device_create() API changed to include
a private data argument. This check detects which version of
device_create() function the kernel has and properly defines
spl_device_create() to use the correct prototype.
were added to cover the 3 possible APIs from 2.6.9 to
2.6.26. We attempt to use the newest interfaces and if
not available fallback to the oldest. This a rework of
some changes proposed by Ricardo for RHEL4.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@150 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
Brian Behlendorf
behlendo