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-rw-r--r--mm/page_alloc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8c1a116875bc..4a9a83fc1b39 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3321,6 +3321,10 @@ void *__init alloc_large_system_hash(const char *tablename,
numentries >>= (scale - PAGE_SHIFT);
else
numentries <<= (PAGE_SHIFT - scale);
+
+ /* Make sure we've got at least a 0-order allocation.. */
+ if (unlikely((numentries * bucketsize) < PAGE_SIZE))
+ numentries = PAGE_SIZE / bucketsize;
}
numentries = roundup_pow_of_two(numentries);