From 978a7a47cae79ae7a7b5a1e80bfcaef6ee700312 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Mon, 15 Dec 2014 12:56:58 +1100
Subject: [PATCH] md/bitmap: protect clearing of ->bitmap by mddev->lock

This makes it safe to inspect the struct while holding only
the spinlock.

Signed-off-by: NeilBrown <neilb@suse.de>
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Reading git-format-patch failed