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[IPV4]: last default route is a fib table property

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Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denis V. Lunev 2007-12-08 00:32:23 -08:00 committed by David S. Miller
parent a2bbe6822f
commit 971b893e79
3 changed files with 18 additions and 17 deletions
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1
include/net/ip_fib.h
View file

@ -141,6 +141,7 @@ struct fib_table {
struct hlist_node tb_hlist;
u32 tb_id;
unsigned tb_stamp;
int tb_default;
int (*tb_lookup)(struct fib_table *tb, const struct flowi *flp, struct fib_result *res);
int (*tb_insert)(struct fib_table *, struct fib_config *);
int (*tb_delete)(struct fib_table *, struct fib_config *);

16
net/ipv4/fib_hash.c
View file

@ -272,8 +272,6 @@ fn_hash_lookup(struct fib_table *tb, const struct flowi *flp, struct fib_result
return err;
}
static int fn_hash_last_dflt=-1;
static void
fn_hash_select_default(struct fib_table *tb, const struct flowi *flp, struct fib_result *res)
{
@ -314,9 +312,9 @@ fn_hash_select_default(struct fib_table *tb, const struct flowi *flp, struct fib
if (next_fi != res->fi)
break;
} else if (!fib_detect_death(fi, order, &last_resort,
&last_idx, fn_hash_last_dflt)) {
&last_idx, tb->tb_default)) {
fib_result_assign(res, fi);
fn_hash_last_dflt = order;
tb->tb_default = order;
goto out;
}
fi = next_fi;
@ -325,19 +323,20 @@ fn_hash_select_default(struct fib_table *tb, const struct flowi *flp, struct fib
}
if (order <= 0 || fi == NULL) {
fn_hash_last_dflt = -1;
tb->tb_default = -1;
goto out;
}
if (!fib_detect_death(fi, order, &last_resort, &last_idx, fn_hash_last_dflt)) {
if (!fib_detect_death(fi, order, &last_resort, &last_idx,
tb->tb_default)) {
fib_result_assign(res, fi);
fn_hash_last_dflt = order;
tb->tb_default = order;
goto out;
}
if (last_idx >= 0)
fib_result_assign(res, last_resort);
fn_hash_last_dflt = last_idx;
tb->tb_default = last_idx;
out:
read_unlock(&fib_hash_lock);
}
@ -773,6 +772,7 @@ struct fib_table * __init fib_hash_init(u32 id)
return NULL;
tb->tb_id = id;
tb->tb_default = -1;
tb->tb_lookup = fn_hash_lookup;
tb->tb_insert = fn_hash_insert;
tb->tb_delete = fn_hash_delete;

18
net/ipv4/fib_trie.c
View file

@ -1782,8 +1782,6 @@ static int fn_trie_flush(struct fib_table *tb)
return found;
}
static int trie_last_dflt = -1;
static void
fn_trie_select_default(struct fib_table *tb, const struct flowi *flp, struct fib_result *res)
{
@ -1830,28 +1828,29 @@ fn_trie_select_default(struct fib_table *tb, const struct flowi *flp, struct fib
if (next_fi != res->fi)
break;
} else if (!fib_detect_death(fi, order, &last_resort,
&last_idx, trie_last_dflt)) {
&last_idx, tb->tb_default)) {
fib_result_assign(res, fi);
trie_last_dflt = order;
tb->tb_default = order;
goto out;
}
fi = next_fi;
order++;
}
if (order <= 0 || fi == NULL) {
trie_last_dflt = -1;
tb->tb_default = -1;
goto out;
}
if (!fib_detect_death(fi, order, &last_resort, &last_idx, trie_last_dflt)) {
if (!fib_detect_death(fi, order, &last_resort, &last_idx,
tb->tb_default)) {
fib_result_assign(res, fi);
trie_last_dflt = order;
tb->tb_default = order;
goto out;
}
if (last_idx >= 0)
fib_result_assign(res, last_resort);
trie_last_dflt = last_idx;
out:;
tb->tb_default = last_idx;
out:
rcu_read_unlock();
}
@ -1978,6 +1977,7 @@ struct fib_table * __init fib_hash_init(u32 id)
return NULL;
tb->tb_id = id;
tb->tb_default = -1;
tb->tb_lookup = fn_trie_lookup;
tb->tb_insert = fn_trie_insert;
tb->tb_delete = fn_trie_delete;