tree d9a5391e6893d1754919178264ac2c86674084ce
parent 96391e2bae0f8882b6f44809202a68be66e91dce
author Boaz Harrosh <bharrosh@panasas.com> 1265563138 +0200
committer Boaz Harrosh <bharrosh@panasas.com> 1267357484 -0800

exofs: Prepare for groups

* Rename _offset_dev_unit_off() to _calc_stripe_info()
  and recieve a struct for the output params

* In _prepare_for_striping we only need to call
  _calc_stripe_info() once. The other componets
  are easy to calculate from that. This code
  was inspired by what's done in truncate.

* Some code shifts that make sense now but will make
  more sense when group support is added.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>