The search ioctl skips items that are too large for a result buffer, but
inline items of a certain size occuring before any search result is
found would trigger an overflow and stop the search entirely.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=57641

Cc: stable@vger.kernel.org
Signed-off-by: NGabriel de Perthuis <g2p.code+btrfs@gmail.com>
Signed-off-by: NJosef Bacik <jbacik@fusionio.com>