Commit 28aa483f authored by Linus Torvalds's avatar Linus Torvalds

x86: Fix discontigmem + non-HIGHMEM compile

It's not necessarily a very sane configuration, but people running "make
randconfig" noticed it wouldn't compile.  This fixes some obvious
problems in discontig.c to allow a clean compile.
Acked-by: default avatarandrew hendry <>
Signed-off-by: default avatarLinus Torvalds <>
parent 0560551d
......@@ -31,6 +31,7 @@
#include <linux/module.h>
#include <linux/kexec.h>
#include <linux/pfn.h>
#include <linux/swap.h>
#include <asm/e820.h>
#include <asm/setup.h>
......@@ -97,14 +98,8 @@ unsigned long node_memmap_size_bytes(int nid, unsigned long start_pfn,
extern unsigned long find_max_low_pfn(void);
extern void find_max_pfn(void);
extern void add_one_highpage_init(struct page *, int, int);
extern struct e820map e820;
extern unsigned long highend_pfn, highstart_pfn;
extern unsigned long max_low_pfn;
extern unsigned long totalram_pages;
extern unsigned long totalhigh_pages;
......@@ -360,7 +355,9 @@ void __init zone_sizes_init(void)
max_zone_pfns[ZONE_DMA] =
virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
/* If SRAT has not registered memory, register it now */
if (find_max_pfn_with_active_regions() == 0) {
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