提交 2b008b0a 编写于 作者: E Eric W. Biederman 提交者: David S. Miller

[NET]: Marking struct pernet_operations __net_initdata was inappropriate

It is not safe to to place struct pernet_operations in a special section.
We need struct pernet_operations to last until we call unregister_pernet_subsys.
Which doesn't happen until module unload.

So marking struct pernet_operations is a disaster for modules in two ways.
- We discard it before we call the exit method it points to.
- Because I keep struct pernet_operations on a linked list discarding
  it for compiled in code removes elements in the middle of a linked
  list and does horrible things for linked insert.

So this looks safe assuming __exit_refok is not discarded
for modules.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 72998d8c
......@@ -284,7 +284,7 @@ static __net_exit void loopback_net_exit(struct net *net)
unregister_netdev(dev);
}
static struct pernet_operations __net_initdata loopback_net_ops = {
static struct pernet_operations loopback_net_ops = {
.init = loopback_net_init,
.exit = loopback_net_exit,
};
......
......@@ -185,7 +185,7 @@ static __net_exit void proc_net_ns_exit(struct net *net)
kfree(net->proc_net_root);
}
static struct pernet_operations __net_initdata proc_net_ns_ops = {
static struct pernet_operations proc_net_ns_ops = {
.init = proc_net_ns_init,
.exit = proc_net_ns_exit,
};
......
......@@ -102,11 +102,9 @@ static inline void release_net(struct net *net)
#ifdef CONFIG_NET_NS
#define __net_init
#define __net_exit
#define __net_initdata
#else
#define __net_init __init
#define __net_exit __exit_refok
#define __net_initdata __initdata
#endif
struct pernet_operations {
......
......@@ -2668,7 +2668,7 @@ static void __net_exit dev_proc_net_exit(struct net *net)
proc_net_remove(net, "dev");
}
static struct pernet_operations __net_initdata dev_proc_ops = {
static struct pernet_operations dev_proc_ops = {
.init = dev_proc_net_init,
.exit = dev_proc_net_exit,
};
......@@ -4328,7 +4328,7 @@ static void __net_exit netdev_exit(struct net *net)
kfree(net->dev_index_head);
}
static struct pernet_operations __net_initdata netdev_net_ops = {
static struct pernet_operations netdev_net_ops = {
.init = netdev_init,
.exit = netdev_exit,
};
......@@ -4359,7 +4359,7 @@ static void __net_exit default_device_exit(struct net *net)
rtnl_unlock();
}
static struct pernet_operations __net_initdata default_device_ops = {
static struct pernet_operations default_device_ops = {
.exit = default_device_exit,
};
......
......@@ -285,7 +285,7 @@ static void __net_exit dev_mc_net_exit(struct net *net)
proc_net_remove(net, "dev_mcast");
}
static struct pernet_operations __net_initdata dev_mc_net_ops = {
static struct pernet_operations dev_mc_net_ops = {
.init = dev_mc_net_init,
.exit = dev_mc_net_exit,
};
......
......@@ -1888,7 +1888,7 @@ static void __net_exit netlink_net_exit(struct net *net)
#endif
}
static struct pernet_operations __net_initdata netlink_net_ops = {
static struct pernet_operations netlink_net_ops = {
.init = netlink_net_init,
.exit = netlink_net_exit,
};
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册