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authorMel Gorman <mgorman@suse.de>2014-06-05 03:07:15 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-05 03:53:59 +0400
commit5f7a75acdb24c7b9c436b3a0a66eec12e101d19c (patch)
tree09bb84ff22ba1de0b19f403242b78bd2d35e24ce /include
parent4f9b16a64753d0bb607454347036dc997fd03b82 (diff)
downloadlinux-5f7a75acdb24c7b9c436b3a0a66eec12e101d19c.tar.xz
mm: page_alloc: do not cache reclaim distances
pgdat->reclaim_nodes tracks if a remote node is allowed to be reclaimed by zone_reclaim due to its distance. As it is expected that zone_reclaim_mode will be rarely enabled it is unreasonable for all machines to take a penalty. Fortunately, the zone_reclaim_mode() path is already slow and it is the path that takes the hit. Signed-off-by: Mel Gorman <mgorman@suse.de> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Acked-by: Michal Hocko <mhocko@suse.cz> Reviewed-by: Christoph Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mmzone.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index fac5509c18f0..c1dbe0ba9f82 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -763,7 +763,6 @@ typedef struct pglist_data {
unsigned long node_spanned_pages; /* total size of physical page
range, including holes */
int node_id;
- nodemask_t reclaim_nodes; /* Nodes allowed to reclaim from */
wait_queue_head_t kswapd_wait;
wait_queue_head_t pfmemalloc_wait;
struct task_struct *kswapd; /* Protected by lock_memory_hotplug() */