Some small cleanups that resulted from the x86_64 merge:
	Some unneeded includes were removed
	Some overlong lines were shortened
	current_thread_info was replaced by a generic version.
	Some warnings were fixed
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>