From: Li Zefan <lizf@cn.fujitsu.com>
Date: Wed, 23 Mar 2011 02:43:58 +0000 (+0800)
Subject: Btrfs: Check if btrfs_next_leaf() returns error in btrfs_real_readdir()
X-Git-Tag: v2.6.39-rc4~5^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b9e03af0bcc11310f6be4a3951c9ee2c26465011;p=pandora-kernel.git

Btrfs: Check if btrfs_next_leaf() returns error in btrfs_real_readdir()

btrfs_next_leaf() can return -errno, and we should propagate
it to userspace.

This also simplifies how we walk the btree path.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
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