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net: use rhashtable_lookup() instead of rhashtable_lookup_fast()

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rhashtable_lookup_fast() internally calls rcu_read_lock() then,
calls rhashtable_lookup(). So if rcu_read_lock() is already held,
rhashtable_lookup() is enough.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
This commit is contained in:
Taehee Yoo 2019-11-22 08:15:19 +00:00 • committed by Jakub Kicinski
parent 3a06ee3396
commit ab818362c9
4 changed files with 6 additions and 6 deletions
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4
drivers/infiniband/hw/hfi1/sdma.c
View file

@ -881,8 +881,8 @@ struct sdma_engine *sdma_select_user_engine(struct hfi1_devdata *dd,
cpu_id = smp_processor_id(); cpu_id = smp_processor_id();
rcu_read_lock(); rcu_read_lock();
rht_node = rhashtable_lookup_fast(dd->sdma_rht, &cpu_id, rht_node = rhashtable_lookup(dd->sdma_rht, &cpu_id,
sdma_rht_params); sdma_rht_params);
if (rht_node && rht_node->map[vl]) { if (rht_node && rht_node->map[vl]) {
struct sdma_rht_map_elem *map = rht_node->map[vl]; struct sdma_rht_map_elem *map = rht_node->map[vl];

2
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View file

@ -3876,7 +3876,7 @@ int mlx5e_delete_flower(struct net_device *dev, struct mlx5e_priv *priv,
int err; int err;
rcu_read_lock(); rcu_read_lock();
flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params); flow = rhashtable_lookup(tc_ht, &f->cookie, tc_ht_params);
if (!flow || !same_flow_direction(flow, flags)) { if (!flow || !same_flow_direction(flow, flags)) {
err = -EINVAL; err = -EINVAL;
goto errout; goto errout;

4
drivers/net/ethernet/netronome/nfp/bpf/offload.c
View file

@ -458,8 +458,8 @@ int nfp_bpf_event_output(struct nfp_app_bpf *bpf, const void *data,
return -EINVAL; return -EINVAL;
rcu_read_lock(); rcu_read_lock();
record = rhashtable_lookup_fast(&bpf->maps_neutral, &map_id, record = rhashtable_lookup(&bpf->maps_neutral, &map_id,
nfp_bpf_maps_neutral_params); nfp_bpf_maps_neutral_params);
if (!record || map_id_full > U32_MAX) { if (!record || map_id_full > U32_MAX) {
rcu_read_unlock(); rcu_read_unlock();
cmsg_warn(bpf, "perf event: map id %lld (0x%llx) not recognized, dropping event\n", cmsg_warn(bpf, "perf event: map id %lld (0x%llx) not recognized, dropping event\n",

2
net/tipc/socket.c
View file

@ -2880,7 +2880,7 @@ static struct tipc_sock *tipc_sk_lookup(struct net *net, u32 portid)
struct tipc_sock *tsk; struct tipc_sock *tsk;
rcu_read_lock(); rcu_read_lock();
tsk = rhashtable_lookup_fast(&tn->sk_rht, &portid, tsk_rht_params); tsk = rhashtable_lookup(&tn->sk_rht, &portid, tsk_rht_params);
if (tsk) if (tsk)
sock_hold(&tsk->sk); sock_hold(&tsk->sk);
rcu_read_unlock(); rcu_read_unlock();