Commit 400e6514 authored by Bob Picco's avatar Bob Picco Committed by Linus Torvalds
Browse files

[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: default avatarBob Picco <bob.picco@hp.com>
Acked-by: default avatarTony Luck <tony.luck@intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 0edd73b3

include/asm-ia64/mmzone.h

+14 −0
Original line number Diff line number Diff line
@@ -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 */