Use wait_event_timeout() in place of custom wait-queue code.  The code is
not changed in any way (I don't think), but is cleaned up quite a bit (will
get expanded to almost identical code).
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>