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authorJianguo Wu <wujianguo@huawei.com>2013-11-12 15:07:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 12:09:06 +0900
commitb76ac7e734608d706bf225be062a7a46d165dda6 (patch)
tree1ded9a6416a9f39044ead1aee578f0fc67a5acc1
parent9f1b868a13ac36bd207a571f5ea1193d823ab18d (diff)
downloadop-kernel-dev-b76ac7e734608d706bf225be062a7a46d165dda6.zip
op-kernel-dev-b76ac7e734608d706bf225be062a7a46d165dda6.tar.gz
mm/mempolicy: use NUMA_NO_NODE
Use more appropriate NUMA_NO_NODE instead of -1 Signed-off-by: Jianguo Wu <wujianguo@huawei.com> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/mempolicy.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 260b821..4cc19f6 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1125,7 +1125,7 @@ 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) {
@@ -1160,7 +1160,7 @@ 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);
@@ -1835,7 +1835,7 @@ 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();
@@ -1872,11 +1872,11 @@ 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_NODE 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)
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