diff options
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/devmap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c index e745d6a88224..482bf42e21a4 100644 --- a/kernel/bpf/devmap.c +++ b/kernel/bpf/devmap.c @@ -156,6 +156,9 @@ static void dev_map_free(struct bpf_map *map) synchronize_rcu(); + /* Make sure prior __dev_map_entry_free() have completed. */ + rcu_barrier(); + /* To ensure all pending flush operations have completed wait for flush * bitmap to indicate all flush_needed bits to be zero on _all_ cpus. * Because the above synchronize_rcu() ensures the map is disconnected |