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numa: convert static memory to dynamically allocated memory for per node device

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We use a static array to store struct node.  In many cases, we don't have
too many nodes, and some memory will be unused.  Convert it to per-device
dynamically allocated memory.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Jiang Liu <liuj97@gmail.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Wen Congyang
2012-12-11 16:00:56 -08:00
committed by Linus Torvalds
parent 97d0da2204
commit 8732794b16
4 changed files with 27 additions and 21 deletions
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4
mm/hugetlb.c
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@@ -1800,7 +1800,7 @@ static void hugetlb_unregister_all_nodes(void)
* remove hstate attributes from any nodes that have them.
*/
for (nid = 0; nid < nr_node_ids; nid++)
hugetlb_unregister_node(&node_devices[nid]);
hugetlb_unregister_node(node_devices[nid]);
}
/*
@@ -1845,7 +1845,7 @@ static void hugetlb_register_all_nodes(void)
int nid;
for_each_node_state(nid, N_HIGH_MEMORY) {
struct node *node = &node_devices[nid];
struct node *node = node_devices[nid];
if (node->dev.id == nid)
hugetlb_register_node(node);
}