diff options
| -rw-r--r-- | net/xfrm/xfrm_state.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index b5dad899fb0e..a62097e640b5 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -231,17 +231,18 @@ retry: return NULL; typemap = afinfo->type_map; - type = typemap[proto]; + type = READ_ONCE(typemap[proto]); if (unlikely(type && !try_module_get(type->owner))) type = NULL; + + rcu_read_unlock(); + if (!type && !modload_attempted) { - rcu_read_unlock(); request_module("xfrm-type-%d-%d", family, proto); modload_attempted = 1; goto retry; } - rcu_read_unlock(); return type; } @@ -327,17 +328,17 @@ retry: if (unlikely(afinfo == NULL)) return NULL; - mode = afinfo->mode_map[encap]; + mode = READ_ONCE(afinfo->mode_map[encap]); if (unlikely(mode && !try_module_get(mode->owner))) mode = NULL; + + rcu_read_unlock(); if (!mode && !modload_attempted) { - rcu_read_unlock(); request_module("xfrm-mode-%d-%d", family, encap); modload_attempted = 1; goto retry; } - rcu_read_unlock(); return mode; } |