Convert to generic boolean.
Signed-off-by: NRichard Knutsson <ricknu-0@student.ltu.se>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>