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[PATCH] generify early_pfn_to_nid

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Provide a default implementation for early_pfn_to_nid returning node 0.  Allow
architectures to override this with their own implementation out of
asm/mmzone.h.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Martin Bligh <mbligh@aracnet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andy Whitcroft 2005-06-23 00:07:52 -07:00 committed by Linus Torvalds
parent 368a0a3afa
commit b159d43fbf
3 changed files with 11 additions and 0 deletions
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4
arch/i386/Kconfig
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@ -810,6 +810,10 @@ config HAVE_ARCH_ALLOC_REMAP
source "mm/Kconfig"
config HAVE_ARCH_EARLY_PFN_TO_NID
bool
default y
config HIGHPTE
bool "Allocate 3rd-level pagetables from highmem"
depends on HIGHMEM4G || HIGHMEM64G

3
include/asm-i386/mmzone.h
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@ -143,4 +143,7 @@ static inline void get_memcfg_numa(void)
}
#endif /* CONFIG_DISCONTIGMEM */
extern int early_pfn_to_nid(unsigned long pfn);
#endif /* _ASM_MMZONE_H_ */

4
include/linux/mmzone.h
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@ -435,6 +435,10 @@ extern struct pglist_data contig_page_data;
#endif
#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
#define early_pfn_to_nid(nid) (0UL)
#endif
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _LINUX_MMZONE_H */