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In debugging the failure of the glibc tst-cond18 test on parisc, I realized
that futexes need to use the same locks the lws calls.  This fixes all the
pthread 'cond' tests.  Sadly, there are still problems with thread cancellation.

[jejb: checkpatch fixes]
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>