From 7f7583d420231b9d09897afd57a957011b606a5b Mon Sep 17 00:00:00 2001
From: Jianpeng Ma <majianpeng@gmail.com>
Date: Thu, 11 Oct 2012 14:17:59 +1100
Subject: [PATCH] Subject: [PATCH] md:change resync_mismatches to atomic64_t to
 avoid races

Now that multiple threads can handle stripes, it is safer to
use an atomic64_t for resync_mismatches, to avoid update races.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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