From 9a05475cebdd6341884b5901e53870be26e65158 Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Thu, 21 Mar 2013 11:58:12 +0200 Subject: [PATCH] ipvs: avoid kmem_cache_zalloc in ip_vs_conn_new We have many fields to set and few to reset, use kmem_cache_alloc instead to save some cycles. Signed-off-by: Julian Anastasov Signed-off by: Hans Schillstrom Signed-off-by: Simon Horman --- include/net/ip_vs.h | 15 +++++++++++++++ net/netfilter/ipvs/ip_vs_conn.c | 24 +++++++++++++++++++----- 2 files changed, 34 insertions(+), 5 deletions(-) diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index 929e04c..43886bb 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -233,6 +233,21 @@ static inline void ip_vs_addr_copy(int af, union nf_inet_addr *dst, dst->ip = src->ip; } +static inline void ip_vs_addr_set(int af, union nf_inet_addr *dst, + const union nf_inet_addr *src) +{ +#ifdef CONFIG_IP_VS_IPV6 + if (af == AF_INET6) { + dst->in6 = src->in6; + return; + } +#endif + dst->ip = src->ip; + dst->all[1] = 0; + dst->all[2] = 0; + dst->all[3] = 0; +} + static inline int ip_vs_addr_equal(int af, const union nf_inet_addr *a, const union nf_inet_addr *b) { diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c index 416015b..e3e2b4d 100644 --- a/net/netfilter/ipvs/ip_vs_conn.c +++ b/net/netfilter/ipvs/ip_vs_conn.c @@ -861,7 +861,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p, struct ip_vs_proto_data *pd = ip_vs_proto_data_get(p->net, p->protocol); - cp = kmem_cache_zalloc(ip_vs_conn_cachep, GFP_ATOMIC); + cp = kmem_cache_alloc(ip_vs_conn_cachep, GFP_ATOMIC); if (cp == NULL) { IP_VS_ERR_RL("%s(): no memory\n", __func__); return NULL; @@ -872,13 +872,13 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p, ip_vs_conn_net_set(cp, p->net); cp->af = p->af; cp->protocol = p->protocol; - ip_vs_addr_copy(p->af, &cp->caddr, p->caddr); + ip_vs_addr_set(p->af, &cp->caddr, p->caddr); cp->cport = p->cport; - ip_vs_addr_copy(p->af, &cp->vaddr, p->vaddr); + ip_vs_addr_set(p->af, &cp->vaddr, p->vaddr); cp->vport = p->vport; /* proto should only be IPPROTO_IP if d_addr is a fwmark */ - ip_vs_addr_copy(p->protocol == IPPROTO_IP ? AF_UNSPEC : p->af, - &cp->daddr, daddr); + ip_vs_addr_set(p->protocol == IPPROTO_IP ? AF_UNSPEC : p->af, + &cp->daddr, daddr); cp->dport = dport; cp->flags = flags; cp->fwmark = fwmark; @@ -887,6 +887,10 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p, cp->pe = p->pe; cp->pe_data = p->pe_data; cp->pe_data_len = p->pe_data_len; + } else { + cp->pe = NULL; + cp->pe_data = NULL; + cp->pe_data_len = 0; } spin_lock_init(&cp->lock); @@ -897,18 +901,28 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p, */ atomic_set(&cp->refcnt, 1); + cp->control = NULL; atomic_set(&cp->n_control, 0); atomic_set(&cp->in_pkts, 0); + cp->packet_xmit = NULL; + cp->app = NULL; + cp->app_data = NULL; + /* reset struct ip_vs_seq */ + cp->in_seq.delta = 0; + cp->out_seq.delta = 0; + atomic_inc(&ipvs->conn_count); if (flags & IP_VS_CONN_F_NO_CPORT) atomic_inc(&ip_vs_conn_no_cport_cnt); /* Bind the connection with a destination server */ + cp->dest = NULL; ip_vs_bind_dest(cp, dest); /* Set its state and timeout */ cp->state = 0; + cp->old_state = 0; cp->timeout = 3*HZ; cp->sync_endtime = jiffies & ~3UL; -- 2.7.4