rhashtable: Add annotation to nested lock
Commit aa34a6cb0478842452bac58edb50d3ef9e178c92 ("rhashtable:
Add arbitrary rehash function") killed the annotation on the
nested lock which leads to bitching from lockdep.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index b1c19c5..d7f3db5 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -234,7 +234,7 @@
new_bucket_lock = bucket_lock(new_tbl, new_hash);
- spin_lock(new_bucket_lock);
+ spin_lock_nested(new_bucket_lock, RHT_LOCK_NESTED);
head = rht_dereference_bucket(new_tbl->buckets[new_hash],
new_tbl, new_hash);
@@ -415,7 +415,7 @@
tbl = rht_dereference_rcu(ht->future_tbl, ht);
if (tbl != old_tbl) {
hash = obj_raw_hashfn(ht, tbl, rht_obj(ht, obj));
- spin_lock(bucket_lock(tbl, hash));
+ spin_lock_nested(bucket_lock(tbl, hash), RHT_LOCK_NESTED);
}
if (compare &&