Re: [RFC PATCH net-next 1/4] rhashtable: add length helper for rhashtable and rhltable

Instead of having users open code the rhashtable length like:
   atomic_read(&ht->nelems)

Provide a helper for both flavours of rhashtables.

Signed-off-by: Pedro Tammela <redacted>
---
 include/linux/rhashtable.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index 5b5357c0bd8c..aac803491916 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h

@@ -1283,4 +1283,20 @@ static inline void rhltable_destroy(struct rhltable *hlt)
        return rhltable_free_and_destroy(hlt, NULL, NULL);
 }

+/**
+ * rhashtable_len - hash table length
+ * @ht: the hash table
+ *
+ * Returns the number of elements in the hash table
+ */
+static inline int rhashtable_len(struct rhashtable *ht)
+{
+       return atomic_read(&ht->nelems);
+}
+
+static inline int rhltable_len(struct rhltable *hlt)
+{
+       return rhashtable_len(&hlt->ht);
+}
+