[PATCH] Drop __get_zone_counts()

Values are readily available via ZVC per node and global sums.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/mm/readahead.c b/mm/readahead.c
index 0f539e8e827a..93d9ee692fd8 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -575,10 +575,6 @@ void handle_ra_miss(struct address_space *mapping,
  */
 unsigned long max_sane_readahead(unsigned long nr)
 {
-        unsigned long active;
-        unsigned long inactive;
-        unsigned long free;
-
-        __get_zone_counts(&active, &inactive, &free, NODE_DATA(numa_node_id()));
-        return min(nr, (inactive + free) / 2);
+        return min(nr, (node_page_state(numa_node_id(), NR_INACTIVE)
+                + node_page_state(numa_node_id(), NR_FREE_PAGES)) / 2);
 }