From: Gerhard Heift <gerhard@heift.name>
Date: Thu, 30 Jan 2014 15:24:00 +0000 (+0100)
Subject: btrfs: tree_search, copy_to_sk: return needed size on EOVERFLOW
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~14^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b6e817d022fd44fe99db92f00d4b18ac2d8f429;p=pandora-kernel.git

btrfs: tree_search, copy_to_sk: return needed size on EOVERFLOW

If an item in tree_search is too large to be stored in the given buffer, return
the needed size (including the header).

Signed-off-by: Gerhard Heift <Gerhard@Heift.Name>
Signed-off-by: Chris Mason <clm@fb.com>
Acked-by: David Sterba <dsterba@suse.cz>
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