From: Andre Noll <maan@systemlinux.org>
Date: Thu, 8 Jan 2009 21:31:08 +0000 (+1100)
Subject: md: raid0: make hash_spacing and preshift sector-based.
X-Git-Tag: v2.6.29-rc1~47^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ccacc7d2cf03114a24ab903f710118e9e5d43273;p=pandora-kernel.git

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>
---

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