diff options
Diffstat (limited to 'net/ipv4/nexthop.c')
| -rw-r--r-- | net/ipv4/nexthop.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index 5dbd4b5505eb..1319d093cdda 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -1918,9 +1918,6 @@ static void nh_rt_cache_flush(struct net *net, struct nexthop *nh, if (!replaced_nh->is_group) return; - /* new dsts must use only the new nexthop group */ - synchronize_net(); - nhg = rtnl_dereference(replaced_nh->nh_grp); for (i = 0; i < nhg->num_nh; i++) { struct nh_grp_entry *nhge = &nhg->nh_entries[i]; @@ -2002,9 +1999,10 @@ static int replace_nexthop_grp(struct net *net, struct nexthop *old, rcu_assign_pointer(old->nh_grp, newg); + /* Make sure concurrent readers are not using 'oldg' anymore. */ + synchronize_net(); + if (newg->resilient) { - /* Make sure concurrent readers are not using 'oldg' anymore. */ - synchronize_net(); rcu_assign_pointer(oldg->res_table, tmp_table); rcu_assign_pointer(oldg->spare->res_table, tmp_table); } |