diff options
Diffstat (limited to 'net/core/filter.c')
| -rw-r--r-- | net/core/filter.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index bd903aa..fd60758 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -433,5 +433,21 @@ int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk) return err; } +int sk_detach_filter(struct sock *sk) +{ + int ret = -ENOENT; + struct sk_filter *filter; + + rcu_read_lock_bh(); + filter = rcu_dereference(sk->sk_filter); + if (filter) { + rcu_assign_pointer(sk->sk_filter, NULL); + sk_filter_release(sk, filter); + ret = 0; + } + rcu_read_unlock_bh(); + return ret; +} + EXPORT_SYMBOL(sk_chk_filter); EXPORT_SYMBOL(sk_run_filter); |