diff options
| author | Steven Whitehouse <steve@chygwyn.com> | 2005-12-05 13:42:06 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-12-05 13:42:06 -0800 |
| commit | 1f12bcc9d1840fd26bf577065214f1ebeb2609ba (patch) | |
| tree | 4fb87a594d00671e2bc31998d94b3d470e9062d3 /net/decnet/af_decnet.c | |
| parent | dab9630fb3d206f49658066a3ecf80ea120364db (diff) | |
| download | lwn-1f12bcc9d1840fd26bf577065214f1ebeb2609ba.tar.gz lwn-1f12bcc9d1840fd26bf577065214f1ebeb2609ba.zip | |
[DECNET]: add memory buffer settings
The patch (originally from Steve) simply adds memory buffer settings to
DECnet similar to those in TCP.
Signed-off-by: Patrick Caulfield <patrick@tykepenguin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet/af_decnet.c')
| -rw-r--r-- | net/decnet/af_decnet.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index f89e55f814d9..d402e9020c68 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -153,6 +153,7 @@ static struct proto_ops dn_proto_ops; static DEFINE_RWLOCK(dn_hash_lock); static struct hlist_head dn_sk_hash[DN_SK_HASH_SIZE]; static struct hlist_head dn_wild_sk; +static atomic_t decnet_memory_allocated; static int __dn_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen, int flags); static int __dn_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen, int flags); @@ -446,10 +447,26 @@ static void dn_destruct(struct sock *sk) dst_release(xchg(&sk->sk_dst_cache, NULL)); } +static int dn_memory_pressure; + +static void dn_enter_memory_pressure(void) +{ + if (!dn_memory_pressure) { + dn_memory_pressure = 1; + } +} + static struct proto dn_proto = { - .name = "DECNET", - .owner = THIS_MODULE, - .obj_size = sizeof(struct dn_sock), + .name = "NSP", + .owner = THIS_MODULE, + .enter_memory_pressure = dn_enter_memory_pressure, + .memory_pressure = &dn_memory_pressure, + .memory_allocated = &decnet_memory_allocated, + .sysctl_mem = sysctl_decnet_mem, + .sysctl_wmem = sysctl_decnet_wmem, + .sysctl_rmem = sysctl_decnet_rmem, + .max_header = DN_MAX_NSP_DATA_HEADER + 64, + .obj_size = sizeof(struct dn_sock), }; static struct sock *dn_alloc_sock(struct socket *sock, gfp_t gfp) @@ -470,6 +487,8 @@ static struct sock *dn_alloc_sock(struct socket *sock, gfp_t gfp) sk->sk_family = PF_DECnet; sk->sk_protocol = 0; sk->sk_allocation = gfp; + sk->sk_sndbuf = sysctl_decnet_wmem[1]; + sk->sk_rcvbuf = sysctl_decnet_rmem[1]; /* Initialization of DECnet Session Control Port */ scp = DN_SK(sk); |