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* [PATCH] mm/mempolicy: use NUMA_NO_NODE
@ 2013-09-16 12:53 Jianguo Wu
  2013-09-16 16:19 ` KOSAKI Motohiro
  2013-09-16 20:26 ` Cody P Schafer
  0 siblings, 2 replies; 5+ messages in thread
From: Jianguo Wu @ 2013-09-16 12:53 UTC (permalink / raw)
  To: Andrew Morton
  Cc: Mel Gorman, David Rientjes, KOSAKI Motohiro, Rik van Riel,
	Hugh Dickins, linux-mm, linux-kernel

Use more appropriate NUMA_NO_NODE instead of -1

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
---
 mm/mempolicy.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 4baf12e..4f73025 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1083,7 +1083,7 @@ int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
 	tmp = *from;
 	while (!nodes_empty(tmp)) {
 		int s,d;
-		int source = -1;
+		int source = NUMA_NO_NODE;
 		int dest = 0;
 
 		for_each_node_mask(s, tmp) {
@@ -1118,7 +1118,7 @@ int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
 			if (!node_isset(dest, tmp))
 				break;
 		}
-		if (source == -1)
+		if (source == NUMA_NO_NODE)
 			break;
 
 		node_clear(source, tmp);
@@ -1765,7 +1765,7 @@ static unsigned offset_il_node(struct mempolicy *pol,
 	unsigned nnodes = nodes_weight(pol->v.nodes);
 	unsigned target;
 	int c;
-	int nid = -1;
+	int nid = NUMA_NO_NODE;
 
 	if (!nnodes)
 		return numa_node_id();
@@ -1802,11 +1802,11 @@ static inline unsigned interleave_nid(struct mempolicy *pol,
 
 /*
  * Return the bit number of a random bit set in the nodemask.
- * (returns -1 if nodemask is empty)
+ * (returns NUMA_NO_NOD if nodemask is empty)
  */
 int node_random(const nodemask_t *maskp)
 {
-	int w, bit = -1;
+	int w, bit = NUMA_NO_NODE;
 
 	w = nodes_weight(*maskp);
 	if (w)
-- 
1.7.1


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^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2013-09-17  1:01 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-09-16 12:53 [PATCH] mm/mempolicy: use NUMA_NO_NODE Jianguo Wu
2013-09-16 16:19 ` KOSAKI Motohiro
2013-09-17  0:59   ` Jianguo Wu
2013-09-16 20:26 ` Cody P Schafer
2013-09-17  1:00   ` Jianguo Wu

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