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-rw-r--r--lib/radix-tree.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 691a9ad48497..898e87998417 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -2284,6 +2284,8 @@ static int radix_tree_cpu_dead(unsigned int cpu)
void __init radix_tree_init(void)
{
int ret;
+
+ BUILD_BUG_ON(RADIX_TREE_MAX_TAGS + __GFP_BITS_SHIFT > 32);
radix_tree_node_cachep = kmem_cache_create("radix_tree_node",
sizeof(struct radix_tree_node), 0,
SLAB_PANIC | SLAB_RECLAIM_ACCOUNT,