From 5cac6bcb9312a18a5091976fc374b4c7b9c4ae2e Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.com>
Date: Fri, 17 Jul 2015 12:17:50 +1000
Subject: [PATCH] md/raid5: always set conf->prev_chunk_sectors and ->prev_algo

These aren't really needed when no reshape is happening,
but it is safer to have them always set to a meaningful value.
The next patch will use ->prev_chunk_sectors without checking
if a reshape is happening (because that makes the code simpler),
and this patch makes that safe.

Signed-off-by: NeilBrown <neilb@suse.com>
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