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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2006-03-27 01:15:57 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-27 08:44:47 -0800
commit8357f8695d58b50fbf2bd507b4b0fc2cd1e43bd6 (patch)
tree8f7326f570ee80d129add7356c7b5c44fb995447 /include/linux/nodemask.h
parenta0140c1d85637ee5f4ea7c78f066e3611a6a79dc (diff)
downloadop-kernel-dev-8357f8695d58b50fbf2bd507b4b0fc2cd1e43bd6.zip
op-kernel-dev-8357f8695d58b50fbf2bd507b4b0fc2cd1e43bd6.tar.gz
[PATCH] define for_each_online_pgdat
This patch defines for_each_online_pgdat() as a replacement of for_each_pgdat() Now, online nodes are managed by node_online_map. But for_each_pgdat() uses pgdat_link to iterate over all nodes(pgdat). This means management structure for online pgdat is duplicated. I think using node_online_map for for_each_pgdat() is simple and sane rather ather than pgdat_link. New macro is named as for_each_online_pgdat(). Following patch will fix callers of for_each_pgdat(). The bootmem allocater uses for_each_pgdat() before pgdat initialization. I don't think it's sane. Following patch will fix it. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/nodemask.h')
-rw-r--r--include/linux/nodemask.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index b959a45..1a9ef3e 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -350,11 +350,15 @@ extern nodemask_t node_possible_map;
#define num_possible_nodes() nodes_weight(node_possible_map)
#define node_online(node) node_isset((node), node_online_map)
#define node_possible(node) node_isset((node), node_possible_map)
+#define first_online_node first_node(node_online_map)
+#define next_online_node(nid) next_node((nid), node_online_map)
#else
#define num_online_nodes() 1
#define num_possible_nodes() 1
#define node_online(node) ((node) == 0)
#define node_possible(node) ((node) == 0)
+#define first_online_node 0
+#define next_online_node(nid) (MAX_NUMNODES)
#endif
#define any_online_node(mask) \
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