For some reason the asm versions of atomic_dec_and_test and friends were
masked by inefficient and big macros. With it I spare up to 8k in the text
size of my coldfire linux and 5k on my cpu32 version.

Patch originally submitted by Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>