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Commit de05c557 authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by David S. Miller
Browse files

proc: consolidate per-net single_open callers 



There are already 7 of them - time to kill some duplicate code.

Signed-off-by: default avatarPavel Emelyanov <xemul@openvz.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 60bdde95

fs/proc/proc_net.c

+24 −0
Original line number Original line Diff line number Diff line
@@ -51,6 +51,30 @@ int seq_open_net(struct inode *ino, struct file *f, 
}

}

EXPORT_SYMBOL_GPL(seq_open_net);

EXPORT_SYMBOL_GPL(seq_open_net);





int single_open_net(struct inode *inode, struct file *file,

		int (*show)(struct seq_file *, void *))

{

	int err;

	struct net *net;



	err = -ENXIO;

	net = get_proc_net(inode);

	if (net == NULL)

		goto err_net;



	err = single_open(file, show, net);

	if (err < 0)

		goto err_open;



	return 0;



err_open:

	put_net(net);

err_net:

	return err;

}

EXPORT_SYMBOL_GPL(single_open_net);



int seq_release_net(struct inode *ino, struct file *f)

int seq_release_net(struct inode *ino, struct file *f)

{

{

	struct seq_file *seq;

	struct seq_file *seq;

include/linux/seq_file_net.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -14,6 +14,8 @@ struct seq_net_private { 




int seq_open_net(struct inode *, struct file *,

int seq_open_net(struct inode *, struct file *,

		 const struct seq_operations *, int);

		 const struct seq_operations *, int);

int single_open_net(struct inode *, struct file *file,

		int (*show)(struct seq_file *, void *));

int seq_release_net(struct inode *, struct file *);

int seq_release_net(struct inode *, struct file *);

static inline struct net *seq_file_net(struct seq_file *seq)

static inline struct net *seq_file_net(struct seq_file *seq)

{

{

net/ipv4/fib_trie.c

+1 −12
Original line number Original line Diff line number Diff line
@@ -2251,18 +2251,7 @@ static int fib_triestat_seq_show(struct seq_file *seq, void *v) 




static int fib_triestat_seq_open(struct inode *inode, struct file *file)

static int fib_triestat_seq_open(struct inode *inode, struct file *file)

{

{

	int err;

	return single_open_net(inode, file, fib_triestat_seq_show);

	struct net *net;



	net = get_proc_net(inode);

	if (net == NULL)

		return -ENXIO;

	err = single_open(file, fib_triestat_seq_show, net);

	if (err < 0) {

		put_net(net);

		return err;

	}

	return 0;

}

}





static int fib_triestat_seq_release(struct inode *ino, struct file *f)

static int fib_triestat_seq_release(struct inode *ino, struct file *f)

net/ipv4/proc.c

+3 −54
Original line number Original line Diff line number Diff line
@@ -71,24 +71,7 @@ static int sockstat_seq_show(struct seq_file *seq, void *v) 




static int sockstat_seq_open(struct inode *inode, struct file *file)

static int sockstat_seq_open(struct inode *inode, struct file *file)

{

{

	int err;

	return single_open_net(inode, file, sockstat_seq_show);

	struct net *net;



	err = -ENXIO;

	net = get_proc_net(inode);

	if (net == NULL)

		goto err_net;



	err = single_open(file, sockstat_seq_show, net);

	if (err < 0)

		goto err_open;



	return 0;



err_open:

	put_net(net);

err_net:

	return err;

}

}





static int sockstat_seq_release(struct inode *inode, struct file *file)

static int sockstat_seq_release(struct inode *inode, struct file *file)
@@ -397,24 +380,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v) 




static int snmp_seq_open(struct inode *inode, struct file *file)

static int snmp_seq_open(struct inode *inode, struct file *file)

{

{

	int err;

	return single_open_net(inode, file, snmp_seq_show);

	struct net *net;



	err = -ENXIO;

	net = get_proc_net(inode);

	if (net == NULL)

		goto err_net;



	err = single_open(file, snmp_seq_show, net);

	if (err < 0)

		goto err_open;



	return 0;



err_open:

	put_net(net);

err_net:

	return err;

}

}





static int snmp_seq_release(struct inode *inode, struct file *file)

static int snmp_seq_release(struct inode *inode, struct file *file)
@@ -469,24 +435,7 @@ static int netstat_seq_show(struct seq_file *seq, void *v) 




static int netstat_seq_open(struct inode *inode, struct file *file)

static int netstat_seq_open(struct inode *inode, struct file *file)

{

{

	int err;

	return single_open_net(inode, file, netstat_seq_show);

	struct net *net;



	err = -ENXIO;

	net = get_proc_net(inode);

	if (net == NULL)

		goto err_net;



	err = single_open(file, netstat_seq_show, net);

	if (err < 0)

		goto err_open;



	return 0;



err_open:

	put_net(net);

err_net:

	return err;

}

}





static int netstat_seq_release(struct inode *inode, struct file *file)

static int netstat_seq_release(struct inode *inode, struct file *file)

net/ipv6/proc.c

+1 −18
Original line number Original line Diff line number Diff line
@@ -183,24 +183,7 @@ static int snmp6_seq_show(struct seq_file *seq, void *v) 




static int sockstat6_seq_open(struct inode *inode, struct file *file)

static int sockstat6_seq_open(struct inode *inode, struct file *file)

{

{

	int err;

	return single_open_net(inode, file, sockstat6_seq_show);

	struct net *net;



	err = -ENXIO;

	net = get_proc_net(inode);

	if (net == NULL)

		goto err_net;



	err = single_open(file, sockstat6_seq_show, net);

	if (err < 0)

		goto err_open;



	return 0;



err_open:

	put_net(net);

err_net:

	return err;

}

}





static int sockstat6_seq_release(struct inode *inode, struct file *file)

static int sockstat6_seq_release(struct inode *inode, struct file *file)