From: Li Zefan <lizf@cn.fujitsu.com>
To: David Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: [PATCH 06/13] net: netrom: use seq_hlist_foo() helpers
Date: Tue, 09 Feb 2010 17:19:42 +0800 [thread overview]
Message-ID: <4B7128AE.2060902@cn.fujitsu.com> (raw)
In-Reply-To: <4B712849.9040400@cn.fujitsu.com>
Simplify seq_file code.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
net/netrom/af_netrom.c | 21 ++----------------
net/netrom/nr_route.c | 53 ++++++++---------------------------------------
2 files changed, 12 insertions(+), 62 deletions(-)
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 71604c6..a249127 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1267,28 +1267,13 @@ static int nr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
static void *nr_info_start(struct seq_file *seq, loff_t *pos)
{
- struct sock *s;
- struct hlist_node *node;
- int i = 1;
-
spin_lock_bh(&nr_list_lock);
- if (*pos == 0)
- return SEQ_START_TOKEN;
-
- sk_for_each(s, node, &nr_list) {
- if (i == *pos)
- return s;
- ++i;
- }
- return NULL;
+ return seq_hlist_start_head(&nr_list, *pos);
}
static void *nr_info_next(struct seq_file *seq, void *v, loff_t *pos)
{
- ++*pos;
-
- return (v == SEQ_START_TOKEN) ? sk_head(&nr_list)
- : sk_next((struct sock *)v);
+ return seq_hlist_next(v, &nr_list, pos);
}
static void nr_info_stop(struct seq_file *seq, void *v)
@@ -1298,7 +1283,7 @@ static void nr_info_stop(struct seq_file *seq, void *v)
static int nr_info_show(struct seq_file *seq, void *v)
{
- struct sock *s = v;
+ struct sock *s = sk_entry(v);
struct net_device *dev;
struct nr_sock *nr;
const char *devname;
diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c
index e2e2d33..5cc6480 100644
--- a/net/netrom/nr_route.c
+++ b/net/netrom/nr_route.c
@@ -863,33 +863,13 @@ int nr_route_frame(struct sk_buff *skb, ax25_cb *ax25)
static void *nr_node_start(struct seq_file *seq, loff_t *pos)
{
- struct nr_node *nr_node;
- struct hlist_node *node;
- int i = 1;
-
spin_lock_bh(&nr_node_list_lock);
- if (*pos == 0)
- return SEQ_START_TOKEN;
-
- nr_node_for_each(nr_node, node, &nr_node_list) {
- if (i == *pos)
- return nr_node;
- ++i;
- }
-
- return NULL;
+ return seq_hlist_start_head(&nr_node_list, *pos);
}
static void *nr_node_next(struct seq_file *seq, void *v, loff_t *pos)
{
- struct hlist_node *node;
- ++*pos;
-
- node = (v == SEQ_START_TOKEN)
- ? nr_node_list.first
- : ((struct nr_node *)v)->node_node.next;
-
- return hlist_entry(node, struct nr_node, node_node);
+ return seq_hlist_next(v, &nr_node_list, pos);
}
static void nr_node_stop(struct seq_file *seq, void *v)
@@ -906,7 +886,9 @@ static int nr_node_show(struct seq_file *seq, void *v)
seq_puts(seq,
"callsign mnemonic w n qual obs neigh qual obs neigh qual obs neigh\n");
else {
- struct nr_node *nr_node = v;
+ struct nr_node *nr_node = hlist_entry(v, struct nr_node,
+ node_node);
+
nr_node_lock(nr_node);
seq_printf(seq, "%-9s %-7s %d %d",
ax2asc(buf, &nr_node->callsign),
@@ -949,31 +931,13 @@ const struct file_operations nr_nodes_fops = {
static void *nr_neigh_start(struct seq_file *seq, loff_t *pos)
{
- struct nr_neigh *nr_neigh;
- struct hlist_node *node;
- int i = 1;
-
spin_lock_bh(&nr_neigh_list_lock);
- if (*pos == 0)
- return SEQ_START_TOKEN;
-
- nr_neigh_for_each(nr_neigh, node, &nr_neigh_list) {
- if (i == *pos)
- return nr_neigh;
- }
- return NULL;
+ return seq_hlist_start_head(&nr_neigh_list, *pos);
}
static void *nr_neigh_next(struct seq_file *seq, void *v, loff_t *pos)
{
- struct hlist_node *node;
- ++*pos;
-
- node = (v == SEQ_START_TOKEN)
- ? nr_neigh_list.first
- : ((struct nr_neigh *)v)->neigh_node.next;
-
- return hlist_entry(node, struct nr_neigh, neigh_node);
+ return seq_hlist_next(v, &nr_neigh_list, pos);
}
static void nr_neigh_stop(struct seq_file *seq, void *v)
@@ -989,8 +953,9 @@ static int nr_neigh_show(struct seq_file *seq, void *v)
if (v == SEQ_START_TOKEN)
seq_puts(seq, "addr callsign dev qual lock count failed digipeaters\n");
else {
- struct nr_neigh *nr_neigh = v;
+ struct nr_neigh *nr_neigh;
+ nr_neigh = hlist_entry(v, struct nr_neigh, neigh_node);
seq_printf(seq, "%05d %-9s %-4s %3d %d %3d %3d",
nr_neigh->number,
ax2asc(buf, &nr_neigh->callsign),
--
1.6.3
next prev parent reply other threads:[~2010-02-09 9:20 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-09 9:18 [PATCH 00/13] net: simplify seq_file code, revised Li Zefan
2010-02-09 9:18 ` [PATCH 01/13] seq_file: Add helpers for iteration over a hlist Li Zefan
2010-02-09 9:18 ` [PATCH 02/13] net: add a wrapper sk_entry() Li Zefan
2010-02-09 9:19 ` [PATCH 03/13] net: x25: use seq_hlist_foo() helpers Li Zefan
2010-02-09 9:19 ` [PATCH 04/13] net: rose: " Li Zefan
2010-02-09 9:19 ` [PATCH 05/13] net: packet: " Li Zefan
2010-02-09 9:19 ` Li Zefan [this message]
2010-02-09 9:19 ` [PATCH 07/13] net: ax25: " Li Zefan
2010-02-09 9:20 ` [PATCH 08/13] net: appletalk: " Li Zefan
2010-02-09 9:20 ` [PATCH 09/13] net: af_key: " Li Zefan
2010-02-09 9:20 ` [PATCH 10/13] net: x25: use seq_list_foo() helpers Li Zefan
2010-02-09 9:21 ` [PATCH 11/13] net: irda: " Li Zefan
2010-02-09 9:21 ` [PATCH 12/13] net: ipx: " Li Zefan
2010-02-09 9:21 ` [PATCH 13/13] net: atm: " Li Zefan
2010-02-10 19:31 ` [PATCH 00/13] net: simplify seq_file code, revised David Miller
2010-02-10 20:29 ` David Miller
-- strict thread matches above, loose matches on Subject: below --
2010-02-05 1:44 [PATCH 00/13] net: simplify seq_file code Li Zefan
2010-02-05 1:46 ` [PATCH 06/13] net: netrom: use seq_hlist_foo() helpers Li Zefan
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