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[PATCH] ia64: pfn_to_nid() implementation 

pfn_to_nid is undefined.  We haven't had this interface on ia64.  The
sys_mbind patches need it.

Oh, the paddr_to_nid call could fail when DISCONTIG+NUMA is configured
because there isn't any ACPI SRAT NUMA information.

Signed-off-by: Bob Picco <bob.picco@hp.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Bob Picco 2005-06-21 17:15:05 -07:00 committed by Linus Torvalds
parent 0edd73b334
commit 400e65146c
1 changed files with 14 additions and 0 deletions
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14
include/asm-ia64/mmzone.h
View File

@ -15,6 +15,20 @@
#include <asm/page.h>
#include <asm/meminit.h>
static inline int pfn_to_nid(unsigned long pfn)
{
#ifdef CONFIG_NUMA
extern int paddr_to_nid(unsigned long);
int nid = paddr_to_nid(pfn << PAGE_SHIFT);
if (nid < 0)
return 0;
else
return nid;
#else
return 0;
#endif
}
#ifdef CONFIG_DISCONTIGMEM
#ifdef CONFIG_IA64_DIG /* DIG systems are small */