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authorHannes Frederic Sowa <hannes@stressinduktion.org>2016-04-05 17:10:15 +0200
committerDavid S. Miller <davem@davemloft.net>2016-04-07 16:44:14 -0400
commit1e1d04e678cf72442f57ce82803c7a407769135f (patch)
tree8ea1054b59c4abe211ffff0b81f34589b0089f22 /net/ipv4/ip_sockglue.c
parentsock: fix lockdep annotation in release_sock (diff)
downloadlinux-dev-1e1d04e678cf72442f57ce82803c7a407769135f.tar.xz
linux-dev-1e1d04e678cf72442f57ce82803c7a407769135f.zip
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.c4
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,