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Commit 9427c4b3 authored by Denis V. Lunev's avatar Denis V. Lunev Committed by David S. Miller
Browse files

[TCP]: Move seq_ops from tcp_iter_state to tcp_seq_afinfo. 



No need to create seq_operations for each instance of 'netstat'.

Signed-off-by: default avatarDenis V. Lunev <den@openvz.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1abf4fb2

include/net/tcp.h

+1 −2
Original line number Original line Diff line number Diff line
@@ -1328,8 +1328,8 @@ struct tcp_seq_afinfo { 
	struct module		*owner;

	struct module		*owner;

	char			*name;

	char			*name;

	sa_family_t		family;

	sa_family_t		family;

	int			(*seq_show) (struct seq_file *m, void *v);

	struct file_operations	*seq_fops;

	struct file_operations	*seq_fops;

	struct seq_operations	seq_ops;

};

};





struct tcp_iter_state {

struct tcp_iter_state {
@@ -1338,7 +1338,6 @@ struct tcp_iter_state { 
	enum tcp_seq_states	state;

	enum tcp_seq_states	state;

	struct sock		*syn_wait_sk;

	struct sock		*syn_wait_sk;

	int			bucket, sbucket, num, uid;

	int			bucket, sbucket, num, uid;

	struct seq_operations	seq_ops;

};

};





extern int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo);

extern int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo);

net/ipv4/tcp_ipv4.c

+8 −6
Original line number Original line Diff line number Diff line
@@ -2229,13 +2229,9 @@ static int tcp_seq_open(struct inode *inode, struct file *file) 
		goto out_kfree;

		goto out_kfree;





	s->family		= afinfo->family;

	s->family		= afinfo->family;

	s->seq_ops.start	= tcp_seq_start;

	s->seq_ops.next		= tcp_seq_next;

	s->seq_ops.show		= afinfo->seq_show;

	s->seq_ops.stop		= tcp_seq_stop;

	s->p.net                = net;

	s->p.net                = net;





	rc = seq_open(file, &s->seq_ops);

	rc = seq_open(file, &afinfo->seq_ops);

	if (rc)

	if (rc)

		goto out_put_net;

		goto out_put_net;

	seq = file->private_data;

	seq = file->private_data;
@@ -2269,6 +2265,10 @@ int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo) 
	afinfo->seq_fops->llseek	= seq_lseek;

	afinfo->seq_fops->llseek	= seq_lseek;

	afinfo->seq_fops->release	= tcp_seq_release;

	afinfo->seq_fops->release	= tcp_seq_release;





	afinfo->seq_ops.start		= tcp_seq_start;

	afinfo->seq_ops.next		= tcp_seq_next;

	afinfo->seq_ops.stop		= tcp_seq_stop;



	p = proc_net_fops_create(net, afinfo->name, S_IRUGO, afinfo->seq_fops);

	p = proc_net_fops_create(net, afinfo->name, S_IRUGO, afinfo->seq_fops);

	if (p)

	if (p)

		p->data = afinfo;

		p->data = afinfo;
@@ -2414,8 +2414,10 @@ static struct tcp_seq_afinfo tcp4_seq_afinfo = { 
	.owner		= THIS_MODULE,

	.owner		= THIS_MODULE,

	.name		= "tcp",

	.name		= "tcp",

	.family		= AF_INET,

	.family		= AF_INET,

	.seq_show	= tcp4_seq_show,

	.seq_fops	= &tcp4_seq_fops,

	.seq_fops	= &tcp4_seq_fops,

	.seq_ops	= {

		.show		= tcp4_seq_show,

	},

};

};





static int tcp4_proc_init_net(struct net *net)

static int tcp4_proc_init_net(struct net *net)

net/ipv6/tcp_ipv6.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -2125,8 +2125,10 @@ static struct tcp_seq_afinfo tcp6_seq_afinfo = { 
	.owner		= THIS_MODULE,

	.owner		= THIS_MODULE,

	.name		= "tcp6",

	.name		= "tcp6",

	.family		= AF_INET6,

	.family		= AF_INET6,

	.seq_show	= tcp6_seq_show,

	.seq_fops	= &tcp6_seq_fops,

	.seq_fops	= &tcp6_seq_fops,

	.seq_ops	= {

		.show		= tcp6_seq_show,

	},

};

};





int tcp6_proc_init(struct net *net)

int tcp6_proc_init(struct net *net)