Commit 0f532f38 authored by Greg Banks's avatar Greg Banks Committed by Linus Torvalds
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[PATCH] cpumask: add highest_possible_node_id



cpumask: add highest_possible_node_id(), analogous to
highest_possible_processor_id().

[pj@sgi.com: fix typo]
Signed-off-by: default avatarGreg Banks <gnb@melbourne.sgi.com>
Signed-off-by: default avatarPaul Jackson <pj@sgi.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent ca8af486
......@@ -352,6 +352,7 @@ extern nodemask_t node_possible_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)
int highest_possible_node_id(void);
#else
#define num_online_nodes() 1
#define num_possible_nodes() 1
......@@ -359,6 +360,7 @@ extern nodemask_t node_possible_map;
#define node_possible(node) ((node) == 0)
#define first_online_node 0
#define next_online_node(nid) (MAX_NUMNODES)
#define highest_possible_node_id() 0
#endif
#define any_online_node(mask) \
......
......@@ -43,3 +43,19 @@ int __any_online_cpu(const cpumask_t *mask)
return cpu;
}
EXPORT_SYMBOL(__any_online_cpu);
#if MAX_NUMNODES > 1
/*
* Find the highest possible node id.
*/
int highest_possible_node_id(void)
{
unsigned int node;
unsigned int highest = 0;
for_each_node_mask(node, node_possible_map)
highest = node;
return highest;
}
EXPORT_SYMBOL(highest_possible_node_id);
#endif
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