rhashtable: Extend RCU read lock into rhashtable_insert_rehash()
rhashtable_insert_rehash() requires RCU locks to be held in order
to access ht->tbl and traverse to the last table.
Fixes: ccd57b1bd324 ("rhashtable: Add immediate rehash during insertion")
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index d7be9cb..5976ab5 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -585,8 +585,8 @@
if (unlikely(rht_grow_above_100(ht, tbl))) {
slow_path:
spin_unlock_bh(lock);
- rcu_read_unlock();
err = rhashtable_insert_rehash(ht);
+ rcu_read_unlock();
if (err)
return err;