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-rw-r--r--mm/page_alloc.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5b5cbb5e181..6c7c2dd1b3e 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -73,7 +73,9 @@ int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES-1] = {
#ifdef CONFIG_ZONE_DMA32
256,
#endif
+#ifdef CONFIG_HIGHMEM
32
+#endif
};
EXPORT_SYMBOL(totalram_pages);
@@ -91,7 +93,9 @@ static char *zone_names[MAX_NR_ZONES] = {
"DMA32",
#endif
"Normal",
+#ifdef CONFIG_HIGHMEM
"HighMem"
+#endif
};
int min_free_kbytes = 1024;
@@ -1375,8 +1379,10 @@ static int __meminit build_zonelists_node(pg_data_t *pgdat,
static inline int highest_zone(int zone_bits)
{
int res = ZONE_NORMAL;
+#ifdef CONFIG_HIGHMEM
if (zone_bits & (__force int)__GFP_HIGHMEM)
res = ZONE_HIGHMEM;
+#endif
#ifdef CONFIG_ZONE_DMA32
if (zone_bits & (__force int)__GFP_DMA32)
res = ZONE_DMA32;