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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

include/linux/nodemask.h

+2 −0
Original line number Diff line number Diff line
@@ -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)			\

lib/cpumask.c

+16 −0
Original line number Diff line number Diff line
@@ -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