diff options
| author | Hannes Frederic Sowa <hannes@stressinduktion.org> | 2016-04-05 18:10:15 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-07 23:44:14 +0300 |
| commit | 1e1d04e678cf72442f57ce82803c7a407769135f (patch) | |
| tree | 8ea1054b59c4abe211ffff0b81f34589b0089f22 /net/ipv4/ip_sockglue.c | |
| parent | 61881cfb5ad80c1d0a46ca6d08b7e271892b2ff6 (diff) | |
| download | linux-1e1d04e678cf72442f57ce82803c7a407769135f.tar.xz | |
net: introduce lockdep_is_held and update various places to use it
The socket is either locked if we hold the slock spin_lock for
lock_sock_fast and unlock_sock_fast or we own the lock (sk_lock.owned
!= 0). Check for this and at the same time improve that the current
thread/cpu is really holding the lock.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_sockglue.c')
| -rw-r--r-- | net/ipv4/ip_sockglue.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 1b7c0776c805..89b5f3bd6694 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -642,7 +642,7 @@ static int do_ip_setsockopt(struct sock *sk, int level, if (err) break; old = rcu_dereference_protected(inet->inet_opt, - sock_owned_by_user(sk)); + lockdep_sock_is_held(sk)); if (inet->is_icsk) { struct inet_connection_sock *icsk = inet_csk(sk); #if IS_ENABLED(CONFIG_IPV6) @@ -1302,7 +1302,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname, struct ip_options_rcu *inet_opt; inet_opt = rcu_dereference_protected(inet->inet_opt, - sock_owned_by_user(sk)); + lockdep_sock_is_held(sk)); opt->optlen = 0; if (inet_opt) memcpy(optbuf, &inet_opt->opt, |