From 35075bb046cc91f42a0e5336bdc07f3279061add Mon Sep 17 00:00:00 2001
From: Alexander Block <ablock84@googlemail.com>
Date: Sat, 28 Jul 2012 12:44:34 +0200
Subject: [PATCH] Btrfs: use kmalloc instead of stack for backref_ctx

Make sure to never get in trouble due to the backref_ctx
which was on the stack before.

Commit is a result of Arne's review.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
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Reading git-format-patch failed