Messages in this thread Patch in this message | | | Subject | [PATCH 1 of 4] cpumask: add highest_possible_node_id | From | Greg Banks <> | Date | Fri, 04 Aug 2006 15:35:19 +1000 |
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cpumask: add highest_possible_node_id(), analogous to highest_possible_processor_id().
Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> ---
include/linux/nodemask.h | 2 ++ lib/cpumask.c | 16 ++++++++++++++++ 2 files changed, 18 insertions(+)
Index: linus-git/include/linux/nodemask.h =================================================================== --- linus-git.orig/include/linux/nodemask.h 2006-07-05 15:55:26.000000000 +1000 +++ linus-git/include/linux/nodemask.h 2006-08-01 15:40:50.953022638 +1000 @@ -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) \ Index: linus-git/lib/cpumask.c =================================================================== --- linus-git.orig/lib/cpumask.c 2006-07-05 15:55:39.000000000 +1000 +++ linus-git/lib/cpumask.c 2006-08-01 15:42:42.742593668 +1000 @@ -43,3 +43,19 @@ int __any_online_cpu(const cpumask_t *ma 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_cpu_mask(node, node_possible_map) + highest = node; + return highest; +} +EXPORT_SYMBOL(highest_possible_node_id); +#endif -- Greg Banks, R&D Software Engineer, SGI Australian Software Group. I don't speak for SGI.
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