Re: [PATCH 2/6] [IPV4] fib hash|trie initialization

2008-01-14 Thread David Miller
From: Stephen Hemminger <[EMAIL PROTECTED]>
Date: Mon, 14 Jan 2008 21:00:08 -0800

> 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 <[EMAIL PROTECTED]>

Applied.
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[PATCH 2/6] [IPV4] fib hash|trie initialization

2008-01-14 Thread Stephen Hemminger
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 <[EMAIL PROTECTED]>


---
Applies after statistics (#1) patch for net-2.6.25

 include/net/ip_fib.h|5 +++--
 net/ipv4/fib_frontend.c |9 ++---
 net/ipv4/fib_hash.c |   24 +++-
 net/ipv4/fib_trie.c |   16 
 4 files changed, 28 insertions(+), 26 deletions(-)

--- a/include/net/ip_fib.h  2008-01-14 14:59:32.0 -0800
+++ b/include/net/ip_fib.h  2008-01-14 15:01:12.0 -0800
@@ -231,8 +231,9 @@ extern int fib_sync_down(__be32 local, s
 extern int fib_sync_up(struct net_device *dev);
 extern __be32  __fib_res_prefsrc(struct fib_result *res);
 
-/* Exported by fib_hash.c */
-extern struct fib_table *fib_hash_init(u32 id);
+/* Exported by fib_{hash|trie}.c */
+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)
 {
--- a/net/ipv4/fib_frontend.c   2008-01-14 14:59:32.0 -0800
+++ b/net/ipv4/fib_frontend.c   2008-01-14 15:01:12.0 -0800
@@ -53,11 +53,11 @@ static int __net_init fib4_rules_init(st
 {
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)
return -ENOMEM;
 
-   main_table  = fib_hash_init(RT_TABLE_MAIN);
+   main_table  = fib_hash_table(RT_TABLE_MAIN);
if (main_table == NULL)
goto fail;
 
@@ -83,7 +83,8 @@ struct fib_table *fib_new_table(struct n
tb = fib_get_table(net, id);
if (tb)
return tb;
-   tb = fib_hash_init(id);
+
+   tb = fib_hash_table(id);
if (!tb)
return NULL;
h = id & (FIB_TABLE_HASHSZ - 1);
@@ -1042,6 +1043,8 @@ void __init ip_fib_init(void)
register_pernet_subsys(&fib_net_ops);
register_netdevice_notifier(&fib_netdev_notifier);
register_inetaddr_notifier(&fib_inetaddr_notifier);
+
+   fib_hash_init();
 }
 
 EXPORT_SYMBOL(inet_addr_type);
--- a/net/ipv4/fib_hash.c   2008-01-14 14:59:32.0 -0800
+++ b/net/ipv4/fib_hash.c   2008-01-14 15:01:12.0 -0800
@@ -746,21 +746,19 @@ static int fn_hash_dump(struct fib_table
return skb->len;
 }
 
-struct fib_table *fib_hash_init(u32 id)
+void __init fib_hash_init(void)
 {
-   struct fib_table *tb;
+   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);
+
+}
 
-   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);
+struct fib_table *fib_hash_table(u32 id)
+{
+   struct fib_table *tb;
 
tb = kmalloc(sizeof(struct fib_table) + sizeof(struct fn_hash),
 GFP_KERNEL);
--- a/net/ipv4/fib_trie.c   2008-01-14 15:01:12.0 -0800
+++ b/net/ipv4/fib_trie.c   2008-01-14 20:57:41.0 -0800
@@ -1923,19 +1923,19 @@ out:
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 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),
 GFP_KERNEL);
if (tb == NULL)
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