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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 2410a3cb1c5327..5b5cbb5e181604 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -70,7 +70,9 @@ static void __free_pages_ok(struct page *page, unsigned int order);
*/
int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES-1] = {
256,
+#ifdef CONFIG_ZONE_DMA32
256,
+#endif
32
};
@@ -85,7 +87,9 @@ EXPORT_SYMBOL(zone_table);
static char *zone_names[MAX_NR_ZONES] = {
"DMA",
+#ifdef CONFIG_ZONE_DMA32
"DMA32",
+#endif
"Normal",
"HighMem"
};
@@ -1373,8 +1377,10 @@ static inline int highest_zone(int zone_bits)
int res = ZONE_NORMAL;
if (zone_bits & (__force int)__GFP_HIGHMEM)
res = ZONE_HIGHMEM;
+#ifdef CONFIG_ZONE_DMA32
if (zone_bits & (__force int)__GFP_DMA32)
res = ZONE_DMA32;
+#endif
if (zone_bits & (__force int)__GFP_DMA)
res = ZONE_DMA;
return res;