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| author | Mel Gorman | 2014-06-05 01:07:15 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2014-06-05 01:53:59 +0200 |
| commit | 5f7a75acdb24c7b9c436b3a0a66eec12e101d19c (patch) | |
| tree | 09bb84ff22ba1de0b19f403242b78bd2d35e24ce /include/linux/mmzone.h | |
| parent | mm: disable zone_reclaim_mode by default (diff) | |
| download | kernel-qcow2-linux-5f7a75acdb24c7b9c436b3a0a66eec12e101d19c.tar.gz kernel-qcow2-linux-5f7a75acdb24c7b9c436b3a0a66eec12e101d19c.tar.xz kernel-qcow2-linux-5f7a75acdb24c7b9c436b3a0a66eec12e101d19c.zip | |
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/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 1 |
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() */ |