From b916a59adfdc875381b68ced258694b434cf43ae Mon Sep 17 00:00:00 2001
From: Jan Schmidt <list.btrfs@jan-o-sch.net>
Date: Fri, 13 Apr 2012 12:28:08 +0200
Subject: [PATCH] Btrfs: add missing read locks in backref.c

iref_to_path and iterate_irefs both increment the eb's refcount to use it
after releasing the path. Both depend on consistent data remaining in the
extent buffer and need a read lock to protect it.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
---
Reading git-format-patch failed