hashdist currently always uses vmalloc when hashdist is true. When
there is only 1 online node and size <= MAX_ORDER, vmalloc can be
avoided.
Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx>
---
mm/page_alloc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index dd419a074141..15478dba1144 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -8029,7 +8029,8 @@ void *__init alloc_large_system_hash(const char *tablename,
else
table = memblock_alloc_raw(size,
SMP_CACHE_BYTES);
- } else if (get_order(size) >= MAX_ORDER || hashdist) {
+ } else if (get_order(size) >= MAX_ORDER ||
+ (hashdist && num_online_nodes() > 1)) {
table = __vmalloc(size, gfp_flags, PAGE_KERNEL);
} else {
/*
--
2.20.1
