From 67a24ac18b0262178ba9f05501b2c6e6731d449a Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 5 Aug 2014 07:50:07 +0200 Subject: [PATCH] netlink: fix lockdep splats With netlink_lookup() conversion to RCU, we need to use appropriate rcu dereference in netlink_seq_socket_idx() & netlink_seq_next() Reported-by: Sasha Levin Signed-off-by: Eric Dumazet Fixes: e341694e3eb57fc ("netlink: Convert netlink_lookup() to use RCU protected hash table") Signed-off-by: David S. Miller --- net/netlink/af_netlink.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 0b89ca51a3af..479a344563d8 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -2899,7 +2899,7 @@ static struct sock *netlink_seq_socket_idx(struct seq_file *seq, loff_t pos) for (i = 0; i < MAX_LINKS; i++) { struct rhashtable *ht = &nl_table[i].hash; - const struct bucket_table *tbl = rht_dereference(ht->tbl, ht); + const struct bucket_table *tbl = rht_dereference_rcu(ht->tbl, ht); for (j = 0; j < tbl->size; j++) { rht_for_each_entry_rcu(nlk, tbl->buckets[j], node) { @@ -2950,7 +2950,7 @@ static void *netlink_seq_next(struct seq_file *seq, void *v, loff_t *pos) do { struct rhashtable *ht = &nl_table[i].hash; - const struct bucket_table *tbl = rht_dereference(ht->tbl, ht); + const struct bucket_table *tbl = rht_dereference_rcu(ht->tbl, ht); for (; j < tbl->size; j++) { rht_for_each_entry_rcu(nlk, tbl->buckets[j], node) { -- 2.20.1