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[NET] NETNS: Omit seq_net_private->net without CONFIG_NET_NS.

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Without CONFIG_NET_NS, no namespace other than &init_net exists,
no need to store net in seq_net_private.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
YOSHIFUJI Hideaki
2008-03-26 02:36:06 +09:00
parent 3b1e0a655f
commit 1218854afa
12 changed files with 53 additions and 47 deletions
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29
net/ipv4/route.c
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@ -276,15 +276,16 @@ struct rt_cache_iter_state {
int genid;
};
static struct rtable *rt_cache_get_first(struct rt_cache_iter_state *st)
static struct rtable *rt_cache_get_first(struct seq_file *seq)
{
struct rt_cache_iter_state *st = seq->private;
struct rtable *r = NULL;
for (st->bucket = rt_hash_mask; st->bucket >= 0; --st->bucket) {
rcu_read_lock_bh();
r = rcu_dereference(rt_hash_table[st->bucket].chain);
while (r) {
if (dev_net(r->u.dst.dev) == st->p.net &&
if (dev_net(r->u.dst.dev) == seq_file_net(seq) &&
r->rt_genid == st->genid)
return r;
r = rcu_dereference(r->u.dst.rt_next);
@ -294,9 +295,10 @@ static struct rtable *rt_cache_get_first(struct rt_cache_iter_state *st)
return r;
}
static struct rtable *__rt_cache_get_next(struct rt_cache_iter_state *st,
static struct rtable *__rt_cache_get_next(struct seq_file *seq,
struct rtable *r)
{
struct rt_cache_iter_state *st = seq->private;
r = r->u.dst.rt_next;
while (!r) {
rcu_read_unlock_bh();
@ -308,11 +310,12 @@ static struct rtable *__rt_cache_get_next(struct rt_cache_iter_state *st,
return rcu_dereference(r);
}
static struct rtable *rt_cache_get_next(struct rt_cache_iter_state *st,
static struct rtable *rt_cache_get_next(struct seq_file *seq,
struct rtable *r)
{
while ((r = __rt_cache_get_next(st, r)) != NULL) {
if (dev_net(r->u.dst.dev) != st->p.net)
struct rt_cache_iter_state *st = seq->private;
while ((r = __rt_cache_get_next(seq, r)) != NULL) {
if (dev_net(r->u.dst.dev) != seq_file_net(seq))
continue;
if (r->rt_genid == st->genid)
break;
@ -320,12 +323,12 @@ static struct rtable *rt_cache_get_next(struct rt_cache_iter_state *st,
return r;
}
static struct rtable *rt_cache_get_idx(struct rt_cache_iter_state *st, loff_t pos)
static struct rtable *rt_cache_get_idx(struct seq_file *seq, loff_t pos)
{
struct rtable *r = rt_cache_get_first(st);
struct rtable *r = rt_cache_get_first(seq);
if (r)
while (pos && (r = rt_cache_get_next(st, r)))
while (pos && (r = rt_cache_get_next(seq, r)))
--pos;
return pos ? NULL : r;
}
@ -333,9 +336,8 @@ static struct rtable *rt_cache_get_idx(struct rt_cache_iter_state *st, loff_t po
static void *rt_cache_seq_start(struct seq_file *seq, loff_t *pos)
{
struct rt_cache_iter_state *st = seq->private;
if (*pos)
return rt_cache_get_idx(st, *pos - 1);
return rt_cache_get_idx(seq, *pos - 1);
st->genid = atomic_read(&rt_genid);
return SEQ_START_TOKEN;
}
@ -343,12 +345,11 @@ static void *rt_cache_seq_start(struct seq_file *seq, loff_t *pos)
static void *rt_cache_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct rtable *r;
struct rt_cache_iter_state *st = seq->private;
if (v == SEQ_START_TOKEN)
r = rt_cache_get_first(st);
r = rt_cache_get_first(seq);
else
r = rt_cache_get_next(st, v);
r = rt_cache_get_next(seq, v);
++*pos;
return r;
}