From af65bdfce98d7965fbe93a48b8128444a2eea024 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Fri, 20 Apr 2007 14:14:21 -0700 Subject: [NETLINK]: Switch cb_lock spinlock to mutex and allow to override it Switch cb_lock to mutex and allow netlink kernel users to override it with a subsystem specific mutex for consistent locking in dump callbacks. All netlink_dump_start users have been audited not to rely on any side-effects of the previously used spinlock. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/netlink.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux/netlink.h') diff --git a/include/linux/netlink.h b/include/linux/netlink.h index 0d11f6a7389c..f41688f56632 100644 --- a/include/linux/netlink.h +++ b/include/linux/netlink.h @@ -157,7 +157,10 @@ struct netlink_skb_parms #define NETLINK_CREDS(skb) (&NETLINK_CB((skb)).creds) -extern struct sock *netlink_kernel_create(int unit, unsigned int groups, void (*input)(struct sock *sk, int len), struct module *module); +extern struct sock *netlink_kernel_create(int unit, unsigned int groups, + void (*input)(struct sock *sk, int len), + struct mutex *cb_mutex, + struct module *module); extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err); extern int netlink_has_listeners(struct sock *sk, unsigned int group); extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 pid, int nonblock); -- cgit v1.2.3