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[IPV4]: fib hash|trie initialization

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Initialization of the slab cache's should be done when IP is
initialized to make sure of available memory, and that code can be
marked __init.

Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2008-01-14 23:14:20 -08:00 committed by David S. Miller
parent d717a9a620
commit 7f9b80529b
4 changed files with 28 additions and 26 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

5
include/net/ip_fib.h
View file

@ -231,8 +231,9 @@ extern int fib_sync_down(__be32 local, struct net_device *dev, int force);
extern int fib_sync_up(struct net_device *dev); extern int fib_sync_up(struct net_device *dev);
extern __be32 __fib_res_prefsrc(struct fib_result *res); extern __be32 __fib_res_prefsrc(struct fib_result *res);
/* Exported by fib_hash.c */ /* Exported by fib_{hash|trie}.c */
extern struct fib_table *fib_hash_init(u32 id); extern void fib_hash_init(void);
extern struct fib_table *fib_hash_table(u32 id);
static inline void fib_combine_itag(u32 *itag, struct fib_result *res) static inline void fib_combine_itag(u32 *itag, struct fib_result *res)
{ {

9
net/ipv4/fib_frontend.c
View file

@ -53,11 +53,11 @@ static int __net_init fib4_rules_init(struct net *net)
{ {
struct fib_table *local_table, *main_table; struct fib_table *local_table, *main_table;
local_table = fib_hash_init(RT_TABLE_LOCAL); local_table = fib_hash_table(RT_TABLE_LOCAL);
if (local_table == NULL) if (local_table == NULL)
return -ENOMEM; return -ENOMEM;
main_table = fib_hash_init(RT_TABLE_MAIN); main_table = fib_hash_table(RT_TABLE_MAIN);
if (main_table == NULL) if (main_table == NULL)
goto fail; goto fail;
@ -83,7 +83,8 @@ struct fib_table *fib_new_table(struct net *net, u32 id)
tb = fib_get_table(net, id); tb = fib_get_table(net, id);
if (tb) if (tb)
return tb; return tb;
tb = fib_hash_init(id);
tb = fib_hash_table(id);
if (!tb) if (!tb)
return NULL; return NULL;
h = id & (FIB_TABLE_HASHSZ - 1); h = id & (FIB_TABLE_HASHSZ - 1);
@ -1042,6 +1043,8 @@ void __init ip_fib_init(void)
register_pernet_subsys(&fib_net_ops); register_pernet_subsys(&fib_net_ops);
register_netdevice_notifier(&fib_netdev_notifier); register_netdevice_notifier(&fib_netdev_notifier);
register_inetaddr_notifier(&fib_inetaddr_notifier); register_inetaddr_notifier(&fib_inetaddr_notifier);
fib_hash_init();
} }
EXPORT_SYMBOL(inet_addr_type); EXPORT_SYMBOL(inet_addr_type);

24
net/ipv4/fib_hash.c
View file

@ -747,22 +747,20 @@ static int fn_hash_dump(struct fib_table *tb, struct sk_buff *skb, struct netlin
return skb->len; return skb->len;
} }
struct fib_table *fib_hash_init(u32 id) void __init fib_hash_init(void)
{
fn_hash_kmem = kmem_cache_create("ip_fib_hash", sizeof(struct fib_node),
0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
fn_alias_kmem = kmem_cache_create("ip_fib_alias", sizeof(struct fib_alias),
0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
}
struct fib_table *fib_hash_table(u32 id)
{ {
struct fib_table *tb; struct fib_table *tb;
if (fn_hash_kmem == NULL)
fn_hash_kmem = kmem_cache_create("ip_fib_hash",
sizeof(struct fib_node),
0, SLAB_HWCACHE_ALIGN,
NULL);
if (fn_alias_kmem == NULL)
fn_alias_kmem = kmem_cache_create("ip_fib_alias",
sizeof(struct fib_alias),
0, SLAB_HWCACHE_ALIGN,
NULL);
tb = kmalloc(sizeof(struct fib_table) + sizeof(struct fn_hash), tb = kmalloc(sizeof(struct fib_table) + sizeof(struct fn_hash),
GFP_KERNEL); GFP_KERNEL);
if (tb == NULL) if (tb == NULL)

16
net/ipv4/fib_trie.c
View file

@ -1926,19 +1926,19 @@ static int fn_trie_dump(struct fib_table *tb, struct sk_buff *skb, struct netlin
return -1; return -1;
} }
/* Fix more generic FIB names for init later */ void __init fib_hash_init(void)
{
fn_alias_kmem = kmem_cache_create("ip_fib_alias", sizeof(struct fib_alias),
0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
}
struct fib_table *fib_hash_init(u32 id)
/* Fix more generic FIB names for init later */
struct fib_table *fib_hash_table(u32 id)
{ {
struct fib_table *tb; struct fib_table *tb;
struct trie *t; struct trie *t;
if (fn_alias_kmem == NULL)
fn_alias_kmem = kmem_cache_create("ip_fib_alias",
sizeof(struct fib_alias),
0, SLAB_HWCACHE_ALIGN,
NULL);
tb = kmalloc(sizeof(struct fib_table) + sizeof(struct trie), tb = kmalloc(sizeof(struct fib_table) + sizeof(struct trie),
GFP_KERNEL); GFP_KERNEL);
if (tb == NULL) if (tb == NULL)