[PATCH] hugepage: Fix hugepage logic in free_pgtables()

[linux-2.6] / include / linux / netdevice.h

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 936f8b7..950dc55 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -230,7 +230,8 @@ enum netdev_state_t
        __LINK_STATE_SCHED,
        __LINK_STATE_NOCARRIER,
        __LINK_STATE_RX_SCHED,
-       __LINK_STATE_LINKWATCH_PENDING
+       __LINK_STATE_LINKWATCH_PENDING,
+       __LINK_STATE_DORMANT,
 };
 
 
@@ -335,11 +336,14 @@ struct net_device
         */
 
 
-       unsigned short          flags;  /* interface flags (a la BSD)   */
+       unsigned int            flags;  /* interface flags (a la BSD)   */
        unsigned short          gflags;
         unsigned short          priv_flags; /* Like 'flags' but invisible to userspace. */
        unsigned short          padded; /* How much padding added by alloc_netdev() */
 
+       unsigned char           operstate; /* RFC2863 operstate */
+       unsigned char           link_mode; /* mapping policy to operstate */
+
        unsigned                mtu;    /* interface MTU value          */
        unsigned short          type;   /* interface hardware type      */
        unsigned short          hard_header_len;        /* hardware hdr length  */
@@ -684,6 +688,7 @@ extern int          netif_rx(struct sk_buff *skb);
 extern int             netif_rx_ni(struct sk_buff *skb);
 #define HAVE_NETIF_RECEIVE_SKB 1
 extern int             netif_receive_skb(struct sk_buff *skb);
+extern int             dev_valid_name(const char *name);
 extern int             dev_ioctl(unsigned int cmd, void __user *);
 extern int             dev_ethtool(struct ifreq *);
 extern unsigned                dev_get_flags(const struct net_device *);
@@ -707,12 +712,18 @@ static inline void dev_put(struct net_device *dev)
        atomic_dec(&dev->refcnt);
 }
 
-#define __dev_put(dev) atomic_dec(&(dev)->refcnt)
-#define dev_hold(dev) atomic_inc(&(dev)->refcnt)
+static inline void dev_hold(struct net_device *dev)
+{
+       atomic_inc(&dev->refcnt);
+}
 
 /* Carrier loss detection, dial on demand. The functions netif_carrier_on
  * and _off may be called from IRQ context, but it is caller
  * who is responsible for serialization of these calls.
+ *
+ * The name carrier is inappropriate, these functions should really be
+ * called netif_lowerlayer_*() because they represent the state of any
+ * kind of lower layer not just hardware media.
  */
 
 extern void linkwatch_fire_event(struct net_device *dev);
@@ -728,6 +739,29 @@ extern void netif_carrier_on(struct net_device *dev);
 
 extern void netif_carrier_off(struct net_device *dev);
 
+static inline void netif_dormant_on(struct net_device *dev)
+{
+       if (!test_and_set_bit(__LINK_STATE_DORMANT, &dev->state))
+               linkwatch_fire_event(dev);
+}
+
+static inline void netif_dormant_off(struct net_device *dev)
+{
+       if (test_and_clear_bit(__LINK_STATE_DORMANT, &dev->state))
+               linkwatch_fire_event(dev);
+}
+
+static inline int netif_dormant(const struct net_device *dev)
+{
+       return test_bit(__LINK_STATE_DORMANT, &dev->state);
+}
+
+
+static inline int netif_oper_up(const struct net_device *dev) {
+       return (dev->operstate == IF_OPER_UP ||
+               dev->operstate == IF_OPER_UNKNOWN /* backward compat */);
+}
+
 /* Hot-plugging. */
 static inline int netif_device_present(struct net_device *dev)
 {
@@ -801,12 +835,16 @@ static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits)
        return (1 << debug_value) - 1;
 }
 
-/* Schedule rx intr now? */
+/* Test if receive needs to be scheduled */
+static inline int __netif_rx_schedule_prep(struct net_device *dev)
+{
+       return !test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
 
+/* Test if receive needs to be scheduled but only if up */
 static inline int netif_rx_schedule_prep(struct net_device *dev)
 {
-       return netif_running(dev) &&
-               !test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
+       return netif_running(dev) && __netif_rx_schedule_prep(dev);
 }
 
 /* Add interface to tail of rx poll list. This assumes that _prep has