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authorLinus Torvalds <torvalds@linux-foundation.org>2008-12-28 12:49:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-12-28 12:49:40 -0800
commit0191b625ca5a46206d2fb862bb08f36f2fcb3b31 (patch)
tree454d1842b1833d976da62abcbd5c47521ebe9bd7 /net/core/sock.c
parent54a696bd07c14d3b1192d03ce7269bc59b45209a (diff)
parenteb56092fc168bf5af199d47af50c0d84a96db898 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1429 commits) net: Allow dependancies of FDDI & Tokenring to be modular. igb: Fix build warning when DCA is disabled. net: Fix warning fallout from recent NAPI interface changes. gro: Fix potential use after free sfc: If AN is enabled, always read speed/duplex from the AN advertising bits sfc: When disabling the NIC, close the device rather than unregistering it sfc: SFT9001: Add cable diagnostics sfc: Add support for multiple PHY self-tests sfc: Merge top-level functions for self-tests sfc: Clean up PHY mode management in loopback self-test sfc: Fix unreliable link detection in some loopback modes sfc: Generate unique names for per-NIC workqueues 802.3ad: use standard ethhdr instead of ad_header 802.3ad: generalize out mac address initializer 802.3ad: initialize ports LACPDU from const initializer 802.3ad: remove typedef around ad_system 802.3ad: turn ports is_individual into a bool 802.3ad: turn ports is_enabled into a bool 802.3ad: make ntt bool ixgbe: Fix set_ringparam in ixgbe to use the same memory pools. ... Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due to the conversion to %pI (in this networking merge) and the addition of doing IPv6 addresses (from the earlier merge of CIFS).
Diffstat (limited to 'net/core/sock.c')
-rw-r--r--net/core/sock.c46
1 files changed, 36 insertions, 10 deletions
diff --git a/net/core/sock.c b/net/core/sock.c
index edf7220889a4..f3a0d08cbb48 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1071,7 +1071,7 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
newsk->sk_sleep = NULL;
if (newsk->sk_prot->sockets_allocated)
- atomic_inc(newsk->sk_prot->sockets_allocated);
+ percpu_counter_inc(newsk->sk_prot->sockets_allocated);
}
out:
return newsk;
@@ -1463,8 +1463,12 @@ int __sk_mem_schedule(struct sock *sk, int size, int kind)
}
if (prot->memory_pressure) {
- if (!*prot->memory_pressure ||
- prot->sysctl_mem[2] > atomic_read(prot->sockets_allocated) *
+ int alloc;
+
+ if (!*prot->memory_pressure)
+ return 1;
+ alloc = percpu_counter_read_positive(prot->sockets_allocated);
+ if (prot->sysctl_mem[2] > alloc *
sk_mem_pages(sk->sk_wmem_queued +
atomic_read(&sk->sk_rmem_alloc) +
sk->sk_forward_alloc))
@@ -2037,7 +2041,8 @@ int proto_register(struct proto *prot, int alloc_slab)
{
if (alloc_slab) {
prot->slab = kmem_cache_create(prot->name, prot->obj_size, 0,
- SLAB_HWCACHE_ALIGN, NULL);
+ SLAB_HWCACHE_ALIGN | prot->slab_flags,
+ NULL);
if (prot->slab == NULL) {
printk(KERN_CRIT "%s: Can't create sock SLAB cache!\n",
@@ -2076,7 +2081,9 @@ int proto_register(struct proto *prot, int alloc_slab)
prot->twsk_prot->twsk_slab =
kmem_cache_create(prot->twsk_prot->twsk_slab_name,
prot->twsk_prot->twsk_obj_size,
- 0, SLAB_HWCACHE_ALIGN,
+ 0,
+ SLAB_HWCACHE_ALIGN |
+ prot->slab_flags,
NULL);
if (prot->twsk_prot->twsk_slab == NULL)
goto out_free_timewait_sock_slab_name;
@@ -2164,7 +2171,7 @@ static void proto_seq_printf(struct seq_file *seq, struct proto *proto)
"%2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c\n",
proto->name,
proto->obj_size,
- proto->sockets_allocated != NULL ? atomic_read(proto->sockets_allocated) : -1,
+ sock_prot_inuse_get(seq_file_net(seq), proto),
proto->memory_allocated != NULL ? atomic_read(proto->memory_allocated) : -1,
proto->memory_pressure != NULL ? *proto->memory_pressure ? "yes" : "no" : "NI",
proto->max_header,
@@ -2218,7 +2225,8 @@ static const struct seq_operations proto_seq_ops = {
static int proto_seq_open(struct inode *inode, struct file *file)
{
- return seq_open(file, &proto_seq_ops);
+ return seq_open_net(inode, file, &proto_seq_ops,
+ sizeof(struct seq_net_private));
}
static const struct file_operations proto_seq_fops = {
@@ -2226,13 +2234,31 @@ static const struct file_operations proto_seq_fops = {
.open = proto_seq_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = seq_release_net,
+};
+
+static __net_init int proto_init_net(struct net *net)
+{
+ if (!proc_net_fops_create(net, "protocols", S_IRUGO, &proto_seq_fops))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static __net_exit void proto_exit_net(struct net *net)
+{
+ proc_net_remove(net, "protocols");
+}
+
+
+static __net_initdata struct pernet_operations proto_net_ops = {
+ .init = proto_init_net,
+ .exit = proto_exit_net,
};
static int __init proto_init(void)
{
- /* register /proc/net/protocols */
- return proc_net_fops_create(&init_net, "protocols", S_IRUGO, &proto_seq_fops) == NULL ? -ENOBUFS : 0;
+ return register_pernet_subsys(&proto_net_ops);
}
subsys_initcall(proto_init);