[PATCH 1/3] Move zone_reclaim() outside of CONFIG_NUMA

Balbir Singh
2010-11-30T10:15:21Z

This patch moves zone_reclaim and associated helpers
outside CONFIG_NUMA. This infrastructure is reused
in the patches for page cache control that follow.

Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
---
include/linux/mmzone.h | 4 ++--
mm/vmscan.c | 2 --
2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 4890662..aeede91 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -302,12 +302,12 @@ struct zone {
*/
unsigned long lowmem_reserve[MAX_NR_ZONES];

-#ifdef CONFIG_NUMA
- int node;
/*
* zone reclaim becomes active if more unmapped pages exist.
*/
unsigned long min_unmapped_pages;
+#ifdef CONFIG_NUMA
+ int node;
unsigned long min_slab_pages;
#endif
struct per_cpu_pageset __percpu *pageset;
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 8cc90d5..325443a 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2644,7 +2644,6 @@ static int __init kswapd_init(void)

module_init(kswapd_init)

-#ifdef CONFIG_NUMA
/*
* Zone reclaim mode
*
@@ -2854,7 +2853,6 @@ int zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)

return ret;
}
-#endif

/*
* page_evictable - test whether a page is evictable