stable/linux-2.6.27.y has this patch since 2009-10-12:
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.27.y.git;a=commitdiff;h=2578cf95969936c372db29ee2bbc21c9b6a299aa
it's included in the release since v2.6.27.37.
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2. That which causes joy or happiness.