Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

[linux-drm-fsl-dcu.git] / net / ipv4 / ipvs / ip_vs_conn.c

diff --git a/net/ipv4/ipvs/ip_vs_conn.c b/net/ipv4/ipvs/ip_vs_conn.c
index 2a3a8c59c6551f087e73d4007963055969fe8f7c..0b5e03476ce4de91b2317de8666c0ebe02a05d36 100644 (file)
--- a/net/ipv4/ipvs/ip_vs_conn.c
+++ b/net/ipv4/ipvs/ip_vs_conn.c
@@ -24,7 +24,11 @@
  *
  */
 
+#include <linux/interrupt.h>
+#include <linux/in.h>
+#include <linux/net.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/vmalloc.h>
 #include <linux/proc_fs.h>             /* for proc_net_* */
 #include <linux/seq_file.h>
@@ -40,7 +44,7 @@
 static struct list_head *ip_vs_conn_tab;
 
 /*  SLAB cache for IPVS connections */
-static kmem_cache_t *ip_vs_conn_cachep __read_mostly;
+static struct kmem_cache *ip_vs_conn_cachep __read_mostly;
 
 /*  counter for current IPVS connections */
 static atomic_t ip_vs_conn_count = ATOMIC_INIT(0);
@@ -111,9 +115,9 @@ static inline void ct_write_unlock_bh(unsigned key)
 /*
  *     Returns hash value for IPVS connection entry
  */
-static unsigned int ip_vs_conn_hashkey(unsigned proto, __u32 addr, __u16 port)
+static unsigned int ip_vs_conn_hashkey(unsigned proto, __be32 addr, __be16 port)
 {
-       return jhash_3words(addr, port, proto, ip_vs_conn_rnd)
+       return jhash_3words((__force u32)addr, (__force u32)port, proto, ip_vs_conn_rnd)
                & IP_VS_CONN_TAB_MASK;
 }
 
@@ -184,7 +188,7 @@ static inline int ip_vs_conn_unhash(struct ip_vs_conn *cp)
  *     d_addr, d_port: pkt dest address (load balancer)
  */
 static inline struct ip_vs_conn *__ip_vs_conn_in_get
-(int protocol, __u32 s_addr, __u16 s_port, __u32 d_addr, __u16 d_port)
+(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port)
 {
        unsigned hash;
        struct ip_vs_conn *cp;
@@ -211,7 +215,7 @@ static inline struct ip_vs_conn *__ip_vs_conn_in_get
 }
 
 struct ip_vs_conn *ip_vs_conn_in_get
-(int protocol, __u32 s_addr, __u16 s_port, __u32 d_addr, __u16 d_port)
+(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port)
 {
        struct ip_vs_conn *cp;
 
@@ -219,7 +223,7 @@ struct ip_vs_conn *ip_vs_conn_in_get
        if (!cp && atomic_read(&ip_vs_conn_no_cport_cnt))
                cp = __ip_vs_conn_in_get(protocol, s_addr, 0, d_addr, d_port);
 
-       IP_VS_DBG(7, "lookup/in %s %u.%u.%u.%u:%d->%u.%u.%u.%u:%d %s\n",
+       IP_VS_DBG(9, "lookup/in %s %u.%u.%u.%u:%d->%u.%u.%u.%u:%d %s\n",
                  ip_vs_proto_name(protocol),
                  NIPQUAD(s_addr), ntohs(s_port),
                  NIPQUAD(d_addr), ntohs(d_port),
@@ -230,7 +234,7 @@ struct ip_vs_conn *ip_vs_conn_in_get
 
 /* Get reference to connection template */
 struct ip_vs_conn *ip_vs_ct_in_get
-(int protocol, __u32 s_addr, __u16 s_port, __u32 d_addr, __u16 d_port)
+(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port)
 {
        unsigned hash;
        struct ip_vs_conn *cp;
@@ -254,7 +258,7 @@ struct ip_vs_conn *ip_vs_ct_in_get
   out:
        ct_read_unlock(hash);
 
-       IP_VS_DBG(7, "template lookup/in %s %u.%u.%u.%u:%d->%u.%u.%u.%u:%d %s\n",
+       IP_VS_DBG(9, "template lookup/in %s %u.%u.%u.%u:%d->%u.%u.%u.%u:%d %s\n",
                  ip_vs_proto_name(protocol),
                  NIPQUAD(s_addr), ntohs(s_port),
                  NIPQUAD(d_addr), ntohs(d_port),
@@ -270,7 +274,7 @@ struct ip_vs_conn *ip_vs_ct_in_get
  *     d_addr, d_port: pkt dest address (foreign host)
  */
 struct ip_vs_conn *ip_vs_conn_out_get
-(int protocol, __u32 s_addr, __u16 s_port, __u32 d_addr, __u16 d_port)
+(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port)
 {
        unsigned hash;
        struct ip_vs_conn *cp, *ret=NULL;
@@ -295,7 +299,7 @@ struct ip_vs_conn *ip_vs_conn_out_get
 
        ct_read_unlock(hash);
 
-       IP_VS_DBG(7, "lookup/out %s %u.%u.%u.%u:%d->%u.%u.%u.%u:%d %s\n",
+       IP_VS_DBG(9, "lookup/out %s %u.%u.%u.%u:%d->%u.%u.%u.%u:%d %s\n",
                  ip_vs_proto_name(protocol),
                  NIPQUAD(s_addr), ntohs(s_port),
                  NIPQUAD(d_addr), ntohs(d_port),
@@ -320,7 +324,7 @@ void ip_vs_conn_put(struct ip_vs_conn *cp)
 /*
  *     Fill a no_client_port connection with a client port number
  */
-void ip_vs_conn_fill_cport(struct ip_vs_conn *cp, __u16 cport)
+void ip_vs_conn_fill_cport(struct ip_vs_conn *cp, __be16 cport)
 {
        if (ip_vs_conn_unhash(cp)) {
                spin_lock(&cp->lock);
@@ -391,8 +395,9 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
        cp->flags |= atomic_read(&dest->conn_flags);
        cp->dest = dest;
 
-       IP_VS_DBG(9, "Bind-dest %s c:%u.%u.%u.%u:%d v:%u.%u.%u.%u:%d "
-                 "d:%u.%u.%u.%u:%d fwd:%c s:%u flg:%X cnt:%d destcnt:%d\n",
+       IP_VS_DBG(7, "Bind-dest %s c:%u.%u.%u.%u:%d v:%u.%u.%u.%u:%d "
+                 "d:%u.%u.%u.%u:%d fwd:%c s:%u conn->flags:%X conn->refcnt:%d "
+                 "dest->refcnt:%d\n",
                  ip_vs_proto_name(cp->protocol),
                  NIPQUAD(cp->caddr), ntohs(cp->cport),
                  NIPQUAD(cp->vaddr), ntohs(cp->vport),
@@ -430,8 +435,9 @@ static inline void ip_vs_unbind_dest(struct ip_vs_conn *cp)
        if (!dest)
                return;
 
-       IP_VS_DBG(9, "Unbind-dest %s c:%u.%u.%u.%u:%d v:%u.%u.%u.%u:%d "
-                 "d:%u.%u.%u.%u:%d fwd:%c s:%u flg:%X cnt:%d destcnt:%d\n",
+       IP_VS_DBG(7, "Unbind-dest %s c:%u.%u.%u.%u:%d v:%u.%u.%u.%u:%d "
+                 "d:%u.%u.%u.%u:%d fwd:%c s:%u conn->flags:%X conn->refcnt:%d "
+                 "dest->refcnt:%d\n",
                  ip_vs_proto_name(cp->protocol),
                  NIPQUAD(cp->caddr), ntohs(cp->cport),
                  NIPQUAD(cp->vaddr), ntohs(cp->vport),
@@ -488,8 +494,8 @@ int ip_vs_check_template(struct ip_vs_conn *ct)
         * Checking the dest server status.
         */
        if ((dest == NULL) ||
-           !(dest->flags & IP_VS_DEST_F_AVAILABLE) || 
-           (sysctl_ip_vs_expire_quiescent_template && 
+           !(dest->flags & IP_VS_DEST_F_AVAILABLE) ||
+           (sysctl_ip_vs_expire_quiescent_template &&
             (atomic_read(&dest->weight) == 0))) {
                IP_VS_DBG(9, "check_template: dest not available for "
                          "protocol %s s:%u.%u.%u.%u:%d v:%u.%u.%u.%u:%d "
@@ -502,10 +508,10 @@ int ip_vs_check_template(struct ip_vs_conn *ct)
                /*
                 * Invalidate the connection template
                 */
-               if (ct->vport != 65535) {
+               if (ct->vport != htons(0xffff)) {
                        if (ip_vs_conn_unhash(ct)) {
-                               ct->dport = 65535;
-                               ct->vport = 65535;
+                               ct->dport = htons(0xffff);
+                               ct->vport = htons(0xffff);
                                ct->cport = 0;
                                ip_vs_conn_hash(ct);
                        }
@@ -571,7 +577,7 @@ static void ip_vs_conn_expire(unsigned long data)
        ip_vs_conn_hash(cp);
 
   expire_later:
-       IP_VS_DBG(7, "delayed: refcnt-1=%d conn.n_control=%d\n",
+       IP_VS_DBG(7, "delayed: conn->refcnt-1=%d conn->n_control=%d\n",
                  atomic_read(&cp->refcnt)-1,
                  atomic_read(&cp->n_control));
 
@@ -590,20 +596,19 @@ void ip_vs_conn_expire_now(struct ip_vs_conn *cp)
  *     Create a new connection entry and hash it into the ip_vs_conn_tab
  */
 struct ip_vs_conn *
-ip_vs_conn_new(int proto, __u32 caddr, __u16 cport, __u32 vaddr, __u16 vport,
-              __u32 daddr, __u16 dport, unsigned flags,
+ip_vs_conn_new(int proto, __be32 caddr, __be16 cport, __be32 vaddr, __be16 vport,
+              __be32 daddr, __be16 dport, unsigned flags,
               struct ip_vs_dest *dest)
 {
        struct ip_vs_conn *cp;
        struct ip_vs_protocol *pp = ip_vs_proto_get(proto);
 
-       cp = kmem_cache_alloc(ip_vs_conn_cachep, GFP_ATOMIC);
+       cp = kmem_cache_zalloc(ip_vs_conn_cachep, GFP_ATOMIC);
        if (cp == NULL) {
                IP_VS_ERR_RL("ip_vs_conn_new: no memory available.\n");
                return NULL;
        }
 
-       memset(cp, 0, sizeof(*cp));
        INIT_LIST_HEAD(&cp->c_list);
        init_timer(&cp->timer);
        cp->timer.data     = (unsigned long)cp;
@@ -661,7 +666,7 @@ static void *ip_vs_conn_array(struct seq_file *seq, loff_t pos)
 {
        int idx;
        struct ip_vs_conn *cp;
-       
+
        for(idx = 0; idx < IP_VS_CONN_TAB_SIZE; idx++) {
                ct_read_lock_bh(idx);
                list_for_each_entry(cp, &ip_vs_conn_tab[idx], c_list) {
@@ -689,7 +694,7 @@ static void *ip_vs_conn_seq_next(struct seq_file *seq, void *v, loff_t *pos)
        int idx;
 
        ++*pos;
-       if (v == SEQ_START_TOKEN) 
+       if (v == SEQ_START_TOKEN)
                return ip_vs_conn_array(seq, 0);
 
        /* more on same hash chain? */
@@ -704,7 +709,7 @@ static void *ip_vs_conn_seq_next(struct seq_file *seq, void *v, loff_t *pos)
                list_for_each_entry(cp, &ip_vs_conn_tab[idx], c_list) {
                        seq->private = &ip_vs_conn_tab[idx];
                        return cp;
-               }       
+               }
                ct_read_unlock_bh(idx);
        }
        seq->private = NULL;