From 477d7eafa9585ded87ee1c6f69638a6baf9d8922 Mon Sep 17 00:00:00 2001
From: Wang Sheng-Hui <shhuiw@gmail.com>
Date: Fri, 6 Apr 2012 14:35:47 +0800
Subject: [PATCH] Btrfs: fix the comment for find_first_extent_bit

The return value of find_first_extent_bit is 1 or 0, no < 0.
And if found something, return 0; if nothing was found, return 1.
Fix the comment.

Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>
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