From d5ee37bcb1dff9c1d1cac5f7e5752309f1ff66b6 Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 24 Jul 2014 11:37:10 +0800
Subject: [PATCH] Btrfs: make the device lock and its protected data in the
 same cacheline

The lock in btrfs_device structure was far away from its protected data, it would
make CPU load the cache line twice when we accessed them, move them together.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
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Reading git-format-patch failed