X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Freadahead.c;h=93d9ee692fd8b193b12ba207f69f900c831e404d;hb=98f85d30ced96ac466f30419de8b3fac341ebe75;hp=c0df5ed05f624a61d7e685d9b5ff9c4bfa4d2f90;hpb=eb991b39385c7b04923d701764a34694ec54b53d;p=linux-2.6

diff --git a/mm/readahead.c b/mm/readahead.c
index c0df5ed05f..93d9ee692f 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/blkdev.h>
 #include <linux/backing-dev.h>
+#include <linux/task_io_accounting_ops.h>
 #include <linux/pagevec.h>
 
 void default_unplug_io_fn(struct backing_dev_info *bdi, struct page *page)
@@ -151,6 +152,7 @@ int read_cache_pages(struct address_space *mapping, struct list_head *pages,
 			put_pages_list(pages);
 			break;
 		}
+		task_io_account_read(PAGE_CACHE_SIZE);
 	}
 	pagevec_lru_add(&lru_pvec);
 	return ret;
@@ -573,10 +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);
 }