Convert prof_buffer to an array of atomic_t instead of sometimes atomic_t,
sometimes unsigned int.  Also, bootmem rounds up internally, so blow away some
crap code there.
Signed-off-by: William Irwin <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>