[PATCH] show Active/Inactive on per-node meminfo

[PATCH] show Active/Inactive on per-node meminfo

  The patch below enable to display the size of Active/Inactive pages on
  per-node meminfo (/sys/devices/system/node/node%d/meminfo) like
  /proc/meminfo.

  By a little change to procps, "vmstat -a" can show these statistics about
  particular node.

From: mita akinobu <amgta@yacht.ocn.ne.jp>

  get_zone_counts() is used by max_sane_readahead(), and
  max_sane_readahead() is often called in filemap_nopage().

Signed-off-by: Akinobu Mita <amgta@yacht.ocn.ne.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>