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authorPatrick McHardy <kaber@trash.net>2006-08-10 23:10:46 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-09-22 14:54:26 -0700
commit1af5a8c4a11cfed0c9a7f30fcfb689981750599c (patch)
tree9affafefd0b4a023d527e3f5d386957bd1dace7b /net/ipv4/fib_trie.c
parent9e762a4a89b302cb3b26a1f9bb33eff459eaeca9 (diff)
downloadlinux-1af5a8c4a11cfed0c9a7f30fcfb689981750599c.tar.bz2
[IPV4]: Increase number of possible routing tables to 2^32
Increase the number of possible routing tables to 2^32 by replacing the fixed sized array of pointers by a hash table and replacing iterations over all possible table IDs by hash table walking. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/fib_trie.c')
-rw-r--r--net/ipv4/fib_trie.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 4a27b2d573a3..2a580eb2579b 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1848,7 +1848,7 @@ static int fn_trie_dump_fa(t_key key, int plen, struct list_head *fah, struct fi
u32 xkey = htonl(key);
- s_i = cb->args[3];
+ s_i = cb->args[4];
i = 0;
/* rcu_read_lock is hold by caller */
@@ -1870,12 +1870,12 @@ static int fn_trie_dump_fa(t_key key, int plen, struct list_head *fah, struct fi
plen,
fa->fa_tos,
fa->fa_info, 0) < 0) {
- cb->args[3] = i;
+ cb->args[4] = i;
return -1;
}
i++;
}
- cb->args[3] = i;
+ cb->args[4] = i;
return skb->len;
}
@@ -1886,14 +1886,14 @@ static int fn_trie_dump_plen(struct trie *t, int plen, struct fib_table *tb, str
struct list_head *fa_head;
struct leaf *l = NULL;
- s_h = cb->args[2];
+ s_h = cb->args[3];
for (h = 0; (l = nextleaf(t, l)) != NULL; h++) {
if (h < s_h)
continue;
if (h > s_h)
- memset(&cb->args[3], 0,
- sizeof(cb->args) - 3*sizeof(cb->args[0]));
+ memset(&cb->args[4], 0,
+ sizeof(cb->args) - 4*sizeof(cb->args[0]));
fa_head = get_fa_head(l, plen);
@@ -1904,11 +1904,11 @@ static int fn_trie_dump_plen(struct trie *t, int plen, struct fib_table *tb, str
continue;
if (fn_trie_dump_fa(l->key, plen, fa_head, tb, skb, cb)<0) {
- cb->args[2] = h;
+ cb->args[3] = h;
return -1;
}
}
- cb->args[2] = h;
+ cb->args[3] = h;
return skb->len;
}
@@ -1917,23 +1917,23 @@ static int fn_trie_dump(struct fib_table *tb, struct sk_buff *skb, struct netlin
int m, s_m;
struct trie *t = (struct trie *) tb->tb_data;
- s_m = cb->args[1];
+ s_m = cb->args[2];
rcu_read_lock();
for (m = 0; m <= 32; m++) {
if (m < s_m)
continue;
if (m > s_m)
- memset(&cb->args[2], 0,
- sizeof(cb->args) - 2*sizeof(cb->args[0]));
+ memset(&cb->args[3], 0,
+ sizeof(cb->args) - 3*sizeof(cb->args[0]));
if (fn_trie_dump_plen(t, 32-m, tb, skb, cb)<0) {
- cb->args[1] = m;
+ cb->args[2] = m;
goto out;
}
}
rcu_read_unlock();
- cb->args[1] = m;
+ cb->args[2] = m;
return skb->len;
out:
rcu_read_unlock();