[INET]: Move tcp_port_rover to inet_hashinfo
Also expose all of the tcp_hashinfo members, i.e. killing those
tcp_ehash, etc macros, this will more clearly expose already generic
functions and some that need just a bit of work to become generic, as
we'll see in the upcoming changesets.
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 38c04c1a..2f4b1a3 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2257,11 +2257,11 @@
__skb_cb_too_small_for_tcp(sizeof(struct tcp_skb_cb),
sizeof(skb->cb));
- tcp_bucket_cachep = kmem_cache_create("tcp_bind_bucket",
- sizeof(struct inet_bind_bucket),
- 0, SLAB_HWCACHE_ALIGN,
- NULL, NULL);
- if (!tcp_bucket_cachep)
+ tcp_hashinfo.bind_bucket_cachep =
+ kmem_cache_create("tcp_bind_bucket",
+ sizeof(struct inet_bind_bucket), 0,
+ SLAB_HWCACHE_ALIGN, NULL, NULL);
+ if (!tcp_hashinfo.bind_bucket_cachep)
panic("tcp_init: Cannot alloc tcp_bind_bucket cache.");
tcp_timewait_cachep = kmem_cache_create("tcp_tw_bucket",
@@ -2276,7 +2276,7 @@
*
* The methodology is similar to that of the buffer cache.
*/
- tcp_ehash =
+ tcp_hashinfo.ehash =
alloc_large_system_hash("TCP established",
sizeof(struct inet_ehash_bucket),
thash_entries,
@@ -2284,37 +2284,37 @@
(25 - PAGE_SHIFT) :
(27 - PAGE_SHIFT),
HASH_HIGHMEM,
- &tcp_ehash_size,
+ &tcp_hashinfo.ehash_size,
NULL,
0);
- tcp_ehash_size = (1 << tcp_ehash_size) >> 1;
- for (i = 0; i < (tcp_ehash_size << 1); i++) {
- rwlock_init(&tcp_ehash[i].lock);
- INIT_HLIST_HEAD(&tcp_ehash[i].chain);
+ tcp_hashinfo.ehash_size = (1 << tcp_hashinfo.ehash_size) >> 1;
+ for (i = 0; i < (tcp_hashinfo.ehash_size << 1); i++) {
+ rwlock_init(&tcp_hashinfo.ehash[i].lock);
+ INIT_HLIST_HEAD(&tcp_hashinfo.ehash[i].chain);
}
- tcp_bhash =
+ tcp_hashinfo.bhash =
alloc_large_system_hash("TCP bind",
sizeof(struct inet_bind_hashbucket),
- tcp_ehash_size,
+ tcp_hashinfo.ehash_size,
(num_physpages >= 128 * 1024) ?
(25 - PAGE_SHIFT) :
(27 - PAGE_SHIFT),
HASH_HIGHMEM,
- &tcp_bhash_size,
+ &tcp_hashinfo.bhash_size,
NULL,
64 * 1024);
- tcp_bhash_size = 1 << tcp_bhash_size;
- for (i = 0; i < tcp_bhash_size; i++) {
- spin_lock_init(&tcp_bhash[i].lock);
- INIT_HLIST_HEAD(&tcp_bhash[i].chain);
+ tcp_hashinfo.bhash_size = 1 << tcp_hashinfo.bhash_size;
+ for (i = 0; i < tcp_hashinfo.bhash_size; i++) {
+ spin_lock_init(&tcp_hashinfo.bhash[i].lock);
+ INIT_HLIST_HEAD(&tcp_hashinfo.bhash[i].chain);
}
/* Try to be a bit smarter and adjust defaults depending
* on available memory.
*/
for (order = 0; ((1 << order) << PAGE_SHIFT) <
- (tcp_bhash_size * sizeof(struct inet_bind_hashbucket));
+ (tcp_hashinfo.bhash_size * sizeof(struct inet_bind_hashbucket));
order++)
;
if (order >= 4) {
@@ -2329,7 +2329,7 @@
sysctl_tcp_max_orphans >>= (3 - order);
sysctl_max_syn_backlog = 128;
}
- tcp_port_rover = sysctl_local_port_range[0] - 1;
+ tcp_hashinfo.port_rover = sysctl_local_port_range[0] - 1;
sysctl_tcp_mem[0] = 768 << order;
sysctl_tcp_mem[1] = 1024 << order;
@@ -2344,7 +2344,7 @@
printk(KERN_INFO "TCP: Hash tables configured "
"(established %d bind %d)\n",
- tcp_ehash_size << 1, tcp_bhash_size);
+ tcp_hashinfo.ehash_size << 1, tcp_hashinfo.bhash_size);
tcp_register_congestion_control(&tcp_reno);
}