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net: ipx: use seq_list_foo() helpers

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Simplify seq_file code.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Li Zefan 2010-02-08 23:21:22 +00:00 committed by David S. Miller
parent 216437eb8b
commit a2b79b414d
1 changed files with 12 additions and 78 deletions
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90
net/ipx/ipx_proc.c
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@ -13,45 +13,15 @@
#include <net/tcp_states.h>
#include <net/ipx.h>
static __inline__ struct ipx_interface *ipx_get_interface_idx(loff_t pos)
{
struct ipx_interface *i;
list_for_each_entry(i, &ipx_interfaces, node)
if (!pos--)
goto out;
i = NULL;
out:
return i;
}
static struct ipx_interface *ipx_interfaces_next(struct ipx_interface *i)
{
struct ipx_interface *rc = NULL;
if (i->node.next != &ipx_interfaces)
rc = list_entry(i->node.next, struct ipx_interface, node);
return rc;
}
static void *ipx_seq_interface_start(struct seq_file *seq, loff_t *pos)
{
loff_t l = *pos;
spin_lock_bh(&ipx_interfaces_lock);
return l ? ipx_get_interface_idx(--l) : SEQ_START_TOKEN;
return seq_list_start_head(&ipx_interfaces, *pos);
}
static void *ipx_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct ipx_interface *i;
++*pos;
if (v == SEQ_START_TOKEN)
i = ipx_interfaces_head();
else
i = ipx_interfaces_next(v);
return i;
return seq_list_next(v, &ipx_interfaces, pos);
}
static void ipx_seq_interface_stop(struct seq_file *seq, void *v)
@ -63,7 +33,7 @@ static int ipx_seq_interface_show(struct seq_file *seq, void *v)
{
struct ipx_interface *i;
if (v == SEQ_START_TOKEN) {
if (v == &ipx_interfaces) {
seq_puts(seq, "Network Node_Address Primary Device "
"Frame_Type");
#ifdef IPX_REFCNT_DEBUG
@ -73,7 +43,7 @@ static int ipx_seq_interface_show(struct seq_file *seq, void *v)
goto out;
}
i = v;
i = list_entry(v, struct ipx_interface, node);
seq_printf(seq, "%08lX ", (unsigned long int)ntohl(i->if_netnum));
seq_printf(seq, "%02X%02X%02X%02X%02X%02X ",
i->if_node[0], i->if_node[1], i->if_node[2],
@ -89,53 +59,15 @@ out:
return 0;
}
static struct ipx_route *ipx_routes_head(void)
{
struct ipx_route *rc = NULL;
if (!list_empty(&ipx_routes))
rc = list_entry(ipx_routes.next, struct ipx_route, node);
return rc;
}
static struct ipx_route *ipx_routes_next(struct ipx_route *r)
{
struct ipx_route *rc = NULL;
if (r->node.next != &ipx_routes)
rc = list_entry(r->node.next, struct ipx_route, node);
return rc;
}
static __inline__ struct ipx_route *ipx_get_route_idx(loff_t pos)
{
struct ipx_route *r;
list_for_each_entry(r, &ipx_routes, node)
if (!pos--)
goto out;
r = NULL;
out:
return r;
}
static void *ipx_seq_route_start(struct seq_file *seq, loff_t *pos)
{
loff_t l = *pos;
read_lock_bh(&ipx_routes_lock);
return l ? ipx_get_route_idx(--l) : SEQ_START_TOKEN;
return seq_list_start_head(&ipx_routes, *pos);
}
static void *ipx_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct ipx_route *r;
++*pos;
if (v == SEQ_START_TOKEN)
r = ipx_routes_head();
else
r = ipx_routes_next(v);
return r;
return seq_list_next(v, &ipx_routes, pos);
}
static void ipx_seq_route_stop(struct seq_file *seq, void *v)
@ -147,11 +79,13 @@ static int ipx_seq_route_show(struct seq_file *seq, void *v)
{
struct ipx_route *rt;
if (v == SEQ_START_TOKEN) {
if (v == &ipx_routes) {
seq_puts(seq, "Network Router_Net Router_Node\n");
goto out;
}
rt = v;
rt = list_entry(v, struct ipx_route, node);
seq_printf(seq, "%08lX ", (unsigned long int)ntohl(rt->ir_net));
if (rt->ir_routed)
seq_printf(seq, "%08lX %02X%02X%02X%02X%02X%02X\n",
@ -226,9 +160,9 @@ static void *ipx_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
spin_unlock_bh(&i->if_sklist_lock);
sk = NULL;
for (;;) {
i = ipx_interfaces_next(i);
if (!i)
if (i->node.next == &ipx_interfaces)
break;
i = list_entry(i->node.next, struct ipx_interface, node);
spin_lock_bh(&i->if_sklist_lock);
if (!hlist_empty(&i->if_sklist)) {
sk = sk_head(&i->if_sklist);