From 75eff68ea6959efd999b125fc3dcf73931a3b30b Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Mon, 15 Dec 2008 15:54:40 -0500
Subject: [PATCH] Btrfs: Don't use spin*lock_irq for the delalloc lock

The delalloc lock doesn't need to have irqs disabled, nobody that
changes the number of delalloc bytes in the FS is running with irqs off.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
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