3 files changed, 11 insertions, 24 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 75382378a1ba..5ccc0cb8352b 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -252,14 +252,7 @@ struct netdev_hw_addr_list {
         netdev_hw_addr_list_for_each(ha, &(dev)->mc)
 
 struct hh_cache {
-        atomic_t        hh_refcnt;      /* number of users                   */
-/*
- * We want hh_output, hh_len, hh_lock and hh_data be a in a separate
- * cache line on SMP.
- * They are mostly read, but hh_refcnt may be changed quite frequently,
- * incurring cache line ping pongs.
- */
-        u16             hh_len ____cacheline_aligned_in_smp;
+        u16             hh_len;
         u16             __pad;
         int             (*hh_output)(struct sk_buff *skb);
         seqlock_t       hh_lock;
@@ -273,12 +266,6 @@ struct hh_cache {
         unsigned long   hh_data[HH_DATA_ALIGN(LL_MAX_HEADER) / sizeof(long)];
 };
 
-static inline void hh_cache_put(struct hh_cache *hh)
-{
-        if (atomic_dec_and_test(&hh->hh_refcnt))
-                kfree(hh);
-}
-
 /* Reserve HH_DATA_MOD byte aligned hard_header_len, but at least that much.
  * Alternative is:
  *   dev->hard_header_len ? (dev->hard_header_len +
diff --git a/include/net/dst.h b/include/net/dst.h
index e12ddfb9eb16..0dd7ccbc0dd5 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -38,7 +38,6 @@ struct dst_entry {
         unsigned long           expires;
         struct dst_entry        *path;
         struct neighbour        *neighbour;
-        struct hh_cache         *hh;
 #ifdef CONFIG_XFRM
         struct xfrm_state       *xfrm;
 #else
@@ -47,6 +46,14 @@ struct dst_entry {
         int                     (*input)(struct sk_buff*);
         int                     (*output)(struct sk_buff*);
 
+        int                     flags;
+#define DST_HOST                0x0001
+#define DST_NOXFRM              0x0002
+#define DST_NOPOLICY            0x0004
+#define DST_NOHASH              0x0008
+#define DST_NOCACHE             0x0010
+#define DST_NOCOUNT             0x0020
+
         short                   error;
         short                   obsolete;
         unsigned short          header_len;     /* more space at head required */
@@ -62,7 +69,7 @@ struct dst_entry {
          * (L1_CACHE_SIZE would be too much)
          */
 #ifdef CONFIG_64BIT
-        long                    __pad_to_align_refcnt[1];
+        long                    __pad_to_align_refcnt[2];
 #endif
         /*
          * __refcnt wants to be on a different cache line from
@@ -71,13 +78,6 @@ struct dst_entry {
         atomic_t                __refcnt;       /* client references    */
         int                     __use;
         unsigned long           lastuse;
-        int                     flags;
-#define DST_HOST                0x0001
-#define DST_NOXFRM              0x0002
-#define DST_NOPOLICY            0x0004
-#define DST_NOHASH              0x0008
-#define DST_NOCACHE             0x0010
-#define DST_NOCOUNT             0x0020
         union {
                 struct dst_entry        *next;
                 struct rtable __rcu     *rt_next;
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 6fe8c2cd5acb..bd8f9f09ab5c 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -108,7 +108,7 @@ struct neighbour {
         __u8                    dead;
         seqlock_t               ha_lock;
         unsigned char           ha[ALIGN(MAX_ADDR_LEN, sizeof(unsigned long))];
-        struct hh_cache         *hh;
+        struct hh_cache         hh;
         int                     (*output)(struct sk_buff *skb);
         const struct neigh_ops  *ops;
         struct rcu_head         rcu;