[PATCH 06 of 11] balance_pgdat doesn't return the number of pages freed

[Andrea Arcangeli <andrea@cpushare.com>]

# HG changeset patch
# User Andrea Arcangeli <andrea@suse.de>
# Date 1199324665 -3600
# Node ID 4ef302dd29164e19111c49bb0db2ad4840eace18
# Parent  fc9148f0ddd0ef11be29dba89e3fc96df8f0b9bf
balance_pgdat doesn't return the number of pages freed

nr_reclaimed would be the number of pages freed in the last pass.

Signed-off-by: Andrea Arcangeli <andrea@suse.de>

diff --git a/mm/vmscan.c b/mm/vmscan.c
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1298,8 +1298,6 @@ out:
  * For kswapd, balance_pgdat() will work across all this node's zones until
  * they are all at pages_high.
  *
- * Returns the number of pages which were actually freed.
- *
  * There is special handling here for zones which are full of pinned pages.
  * This can happen if the pages are all mlocked, or if they are all used by
  * device drivers (say, ZONE_DMA).  Or if they are all in use by hugetlb.
@@ -1315,7 +1313,7 @@ out:
  * the page allocator fallback scheme to ensure that aging of pages is balanced
  * across the zones.
  */
-static unsigned long balance_pgdat(pg_data_t *pgdat, int order)
+static void balance_pgdat(pg_data_t *pgdat, int order)
 {
 	int all_zones_ok;
 	int priority;
@@ -1475,8 +1473,6 @@ out:
 
 		goto loop_again;
 	}
-
-	return nr_reclaimed;
 }
 
 /*

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