From 45d4582f219619e368ea91ea1189085e1c5f1969 Mon Sep 17 00:00:00 2001
From: Sandeep K Sinha <sandeepksinha@gmail.com>
Date: Tue, 16 Jun 2009 16:55:26 +1000
Subject: [PATCH] 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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