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include/linux/nodemask.h: create next_node_in() helper

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Lots of code does

	node = next_node(node, XXX);
	if (node == MAX_NUMNODES)
		node = first_node(XXX);

so create next_node_in() to do this and use it in various places.

[[email protected]: use next_node_in() helper]
Acked-by: Vlastimil Babka <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Signed-off-by: Michal Hocko <[email protected]>
Cc: Xishi Qiu <[email protected]>
Cc: Joonsoo Kim <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Naoya Horiguchi <[email protected]>
Cc: Laura Abbott <[email protected]>
Cc: Hui Zhu <[email protected]>
Cc: Wang Xiaoqiang <[email protected]>
Cc: Johannes Weiner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Andrew Morton 2016-05-19 17:10:58 -07:00 • committed by Linus Torvalds
commit 0edaf86cf1
11 changed files with 54 additions and 59 deletions
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4
mm/memcontrol.c
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@ -1389,9 +1389,7 @@ int mem_cgroup_select_victim_node(struct mem_cgroup *memcg)
mem_cgroup_may_update_nodemask(memcg);
node = memcg->last_scanned_node;
node = next_node(node, memcg->scan_nodes);
if (node == MAX_NUMNODES)
node = first_node(memcg->scan_nodes);
node = next_node_in(node, memcg->scan_nodes);
/*
* We call this when we hit limit, not when pages are added to LRU.
* No LRU may hold pages because all pages are UNEVICTABLE or