tree c856e2a17f6c6a26996a8cfba87680a2375061d5
parent 83838ed87898e0a8ff8dbf001e54e6c017f0a011
author Andre Noll <maan@systemlinux.org> 1231450268 +1100
committer NeilBrown <neilb@suse.de> 1231450268 +1100

md: raid0: make hash_spacing and preshift sector-based.

This patch renames the hash_spacing and preshift members of struct
raid0_private_data to spacing and sector_shift respectively and
changes the semantics as follows:

We always have spacing = 2 * hash_spacing. In case
sizeof(sector_t) > sizeof(u32) we also have sector_shift = preshift + 1
while sector_shift = preshift = 0 otherwise.

Note that the values of nb_zone and zone are unaffected by these changes
because in the sector_div() preceeding the assignement of these two
variables both arguments double.

Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>