Instead of allocating a fix sized array of NR_CPUS pointers for percpu_data, 
we can use nr_cpu_ids, which is generally < NR_CPUS.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>

  include/linux/percpu.h |    2 +-
  mm/allocpercpu.c       |    2 +-
  2 files changed, 2 insertions(+), 2 deletions(-)