diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_sockglue.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index f36d35fe924b..5ad2d8ed3a3f 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -322,9 +322,6 @@ int ip_cmsg_send(struct sock *sk, struct msghdr *msg, struct ipcm_cookie *ipc, return 0; } -static DEFINE_SPINLOCK(ip_ra_lock); - - static void ip_ra_destroy_rcu(struct rcu_head *head) { struct ip_ra_chain *ra = container_of(head, struct ip_ra_chain, rcu); @@ -345,21 +342,21 @@ int ip_ra_control(struct sock *sk, unsigned char on, new_ra = on ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL; - spin_lock_bh(&ip_ra_lock); + mutex_lock(&net->ipv4.ra_mutex); for (rap = &net->ipv4.ra_chain; (ra = rcu_dereference_protected(*rap, - lockdep_is_held(&ip_ra_lock))) != NULL; + lockdep_is_held(&net->ipv4.ra_mutex))) != NULL; rap = &ra->next) { if (ra->sk == sk) { if (on) { - spin_unlock_bh(&ip_ra_lock); + mutex_unlock(&net->ipv4.ra_mutex); kfree(new_ra); return -EADDRINUSE; } /* dont let ip_call_ra_chain() use sk again */ ra->sk = NULL; RCU_INIT_POINTER(*rap, ra->next); - spin_unlock_bh(&ip_ra_lock); + mutex_unlock(&net->ipv4.ra_mutex); if (ra->destructor) ra->destructor(sk); @@ -374,7 +371,7 @@ int ip_ra_control(struct sock *sk, unsigned char on, } } if (!new_ra) { - spin_unlock_bh(&ip_ra_lock); + mutex_unlock(&net->ipv4.ra_mutex); return -ENOBUFS; } new_ra->sk = sk; @@ -383,7 +380,7 @@ int ip_ra_control(struct sock *sk, unsigned char on, RCU_INIT_POINTER(new_ra->next, ra); rcu_assign_pointer(*rap, new_ra); sock_hold(sk); - spin_unlock_bh(&ip_ra_lock); + mutex_unlock(&net->ipv4.ra_mutex); return 0; } |