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page_alloc: make setup_nr_node_ids() usable for arch init code 

powerpc and x86 were opencoding copies of setup_nr_node_ids(), which
page_alloc provides but makes static.  Make it avaliable to the archs in
linux/mm.h.

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Cody P Schafer 2013-04-29 15:08:01 -07:00 committed by Linus Torvalds
parent 7c243c7168
commit f9872caf07
2 changed files with 7 additions and 5 deletions
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6
include/linux/mm.h
View File

@ -1816,5 +1816,11 @@ static inline unsigned int debug_guardpage_minorder(void) { return 0; }
static inline bool page_is_guard(struct page *page) { return false; }
#endif /* CONFIG_DEBUG_PAGEALLOC */
#if MAX_NUMNODES > 1
void __init setup_nr_node_ids(void);
#else
static inline void setup_nr_node_ids(void) {}
#endif
#endif /* __KERNEL__ */
#endif /* _LINUX_MM_H */

6
mm/page_alloc.c
View File

@ -4749,7 +4749,7 @@ void __paginginit free_area_init_node(int nid, unsigned long *zones_size,
/*
* Figure out the number of possible node ids.
*/
static void __init setup_nr_node_ids(void)
void __init setup_nr_node_ids(void)
{
unsigned int node;
unsigned int highest = 0;
@ -4758,10 +4758,6 @@ static void __init setup_nr_node_ids(void)
highest = node;
nr_node_ids = highest + 1;
}
#else
static inline void setup_nr_node_ids(void)
{
}
#endif
/**