[PATCH 13/39] autonuma: knuma_migrated per NUMA node queues

From: Andrea Arcangeli
Date: Mon Mar 26 2012 - 14:27:57 EST

This implements the knuma_migrated queues. The pages are added to
these queues through the NUMA hinting page faults (memory follow CPU
algorithm with false sharing evaluation) and knuma_migrated then is
waken with a certain hysteresis to migrate the memory in round robin
from all remote nodes to its local node.

The head that belongs to the local node that knuma_migrated runs on,
for now must be empty and it's not being used.

Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
include/linux/mmzone.h | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index dff7115..b60747a 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -666,6 +666,12 @@ typedef struct pglist_data {
struct task_struct *kswapd;
int kswapd_max_order;
enum zone_type classzone_idx;
+ spinlock_t autonuma_lock;
+ struct list_head autonuma_migrate_head[MAX_NUMNODES];
+ unsigned long autonuma_nr_migrate_pages;
+ wait_queue_head_t autonuma_knuma_migrated_wait;
} pg_data_t;

#define node_present_pages(nid) (NODE_DATA(nid)->node_present_pages)
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