From: Sandeep K Sinha <sandeepksinha@gmail.com>
Date: Tue, 16 Jun 2009 06:55:26 +0000 (+1000)
Subject: md: Removal of hash table in linear raid
X-Git-Tag: v2.6.31-rc1~143^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45d4582f219619e368ea91ea1189085e1c5f1969;p=pandora-kernel.git

md: Removal of hash table in linear raid

Get rid of sector_div and hash table for linear raid and replace
with a linear search in which_dev.
The hash table adds a lot of complexity for little if any gain.
Ultimately a binary search will be used which will have smaller
cache foot print, a similar number of memory access, and no
divisions.

Signed-off-by: Sandeep K Sinha <sandeepksinha@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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