X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2Frhashtable.c;h=3d2b4733f6cb7cf2fdca301d80f7d7bb0d6d61cc;hb=f86dc4b04dd5292cae3708c16ca6e46dbb5c95fa;hp=7b36e4d40ed7e3a1e0e1ddb87f386768c8b256aa;hpb=84de67b29882efaacd05861f41e749c5e8f0c3ed;p=firefly-linux-kernel-4.4.55.git

diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index 7b36e4d40ed7..3d2b4733f6cb 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -54,7 +54,7 @@ static u32 __hashfn(const struct rhashtable *ht, const void *key,
 
 /**
  * rhashtable_hashfn - compute hash for key of given length
- * @ht:		hash table to compuate for
+ * @ht:		hash table to compute for
  * @key:	pointer to key
  * @len:	length of key
  *
@@ -85,7 +85,7 @@ static u32 obj_hashfn(const struct rhashtable *ht, const void *ptr, u32 hsize)
 
 /**
  * rhashtable_obj_hashfn - compute hash for hashed object
- * @ht:		hash table to compuate for
+ * @ht:		hash table to compute for
  * @ptr:	pointer to hashed object
  *
  * Computes the hash value using the hash function `hashfn` respectively
@@ -588,13 +588,13 @@ EXPORT_SYMBOL_GPL(rhashtable_init);
  * rhashtable_destroy - destroy hash table
  * @ht:		the hash table to destroy
  *
- * Frees the bucket array.
+ * Frees the bucket array. This function is not rcu safe, therefore the caller
+ * has to make sure that no resizing may happen by unpublishing the hashtable
+ * and waiting for the quiescent cycle before releasing the bucket array.
  */
 void rhashtable_destroy(const struct rhashtable *ht)
 {
-	const struct bucket_table *tbl = rht_dereference(ht->tbl, ht);
-
-	bucket_table_free(tbl);
+	bucket_table_free(ht->tbl);
 }
 EXPORT_SYMBOL_GPL(rhashtable_destroy);