Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild

[pandora-kernel.git] / include / net / sock.h

diff --git a/include/net/sock.h b/include/net/sock.h
index 2d8d6ad..324b3ea 100644 (file)
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -44,6 +44,7 @@
 #include <linux/timer.h>
 #include <linux/cache.h>
 #include <linux/module.h>
+#include <linux/lockdep.h>
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>      /* struct sk_buff */
 #include <linux/security.h>
@@ -78,14 +79,17 @@ typedef struct {
        spinlock_t              slock;
        struct sock_iocb        *owner;
        wait_queue_head_t       wq;
+       /*
+        * We express the mutex-alike socket_lock semantics
+        * to the lock validator by explicitly managing
+        * the slock as a lock variant (in addition to
+        * the slock itself):
+        */
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+       struct lockdep_map dep_map;
+#endif
 } socket_lock_t;
 
-#define sock_lock_init(__sk) \
-do {   spin_lock_init(&((__sk)->sk_lock.slock)); \
-       (__sk)->sk_lock.owner = NULL; \
-       init_waitqueue_head(&((__sk)->sk_lock.wq)); \
-} while(0)
-
 struct sock;
 struct proto;
 
@@ -140,6 +144,7 @@ struct sock_common {
   *    @sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE, %SO_OOBINLINE settings
   *    @sk_no_check: %SO_NO_CHECK setting, wether or not checkup packets
   *    @sk_route_caps: route capabilities (e.g. %NETIF_F_TSO)
+  *    @sk_gso_type: GSO type (e.g. %SKB_GSO_TCPV4)
   *    @sk_lingertime: %SO_LINGER l_linger setting
   *    @sk_backlog: always used with the per-socket spinlock held
   *    @sk_callback_lock: used with the callbacks in the end of this struct
@@ -211,6 +216,7 @@ struct sock {
        gfp_t                   sk_allocation;
        int                     sk_sndbuf;
        int                     sk_route_caps;
+       int                     sk_gso_type;
        int                     sk_rcvlowat;
        unsigned long           sk_flags;
        unsigned long           sk_lingertime;
@@ -383,7 +389,6 @@ enum sock_flags {
        SOCK_USE_WRITE_QUEUE, /* whether to call sk->sk_write_space in sock_wfree */
        SOCK_DBG, /* %SO_DEBUG setting */
        SOCK_RCVTSTAMP, /* %SO_TIMESTAMP setting */
-       SOCK_NO_LARGESEND, /* whether to sent large segments or not */
        SOCK_LOCALROUTE, /* route locally only, %SO_DONTROUTE setting */
        SOCK_QUEUE_SHRUNK, /* write queue has been shrunk recently */
 };
@@ -746,6 +751,9 @@ extern void FASTCALL(release_sock(struct sock *sk));
 
 /* BH context may only use the following locking interface. */
 #define bh_lock_sock(__sk)     spin_lock(&((__sk)->sk_lock.slock))
+#define bh_lock_sock_nested(__sk) \
+                               spin_lock_nested(&((__sk)->sk_lock.slock), \
+                               SINGLE_DEPTH_NESTING)
 #define bh_unlock_sock(__sk)   spin_unlock(&((__sk)->sk_lock.slock))
 
 extern struct sock             *sk_alloc(int family,
@@ -1026,15 +1034,20 @@ extern struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie);
 
 extern struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie);
 
+static inline int sk_can_gso(const struct sock *sk)
+{
+       return net_gso_ok(sk->sk_route_caps, sk->sk_gso_type);
+}
+
 static inline void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
 {
        __sk_dst_set(sk, dst);
        sk->sk_route_caps = dst->dev->features;
        if (sk->sk_route_caps & NETIF_F_GSO)
-               sk->sk_route_caps |= NETIF_F_TSO;
-       if (sk->sk_route_caps & NETIF_F_TSO) {
-               if (sock_flag(sk, SOCK_NO_LARGESEND) || dst->header_len)
-                       sk->sk_route_caps &= ~NETIF_F_TSO;
+               sk->sk_route_caps |= NETIF_F_GSO_MASK;
+       if (sk_can_gso(sk)) {
+               if (dst->header_len)
+                       sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
                else 
                        sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM;
        }