diff options
Diffstat (limited to 'include/net/dst.h')
| -rw-r--r-- | include/net/dst.h | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index e3ac7d0fc4e..002500e631f 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -52,15 +52,10 @@ struct dst_entry unsigned short header_len; /* more space at head required */ unsigned short trailer_len; /* space to reserve at tail */ - u32 metrics[RTAX_MAX]; - struct dst_entry *path; - - unsigned long rate_last; /* rate limiting for ICMP */ unsigned int rate_tokens; + unsigned long rate_last; /* rate limiting for ICMP */ -#ifdef CONFIG_NET_CLS_ROUTE - __u32 tclassid; -#endif + struct dst_entry *path; struct neighbour *neighbour; struct hh_cache *hh; @@ -70,10 +65,20 @@ struct dst_entry int (*output)(struct sk_buff*); struct dst_ops *ops; - - unsigned long lastuse; + + u32 metrics[RTAX_MAX]; + +#ifdef CONFIG_NET_CLS_ROUTE + __u32 tclassid; +#endif + + /* + * __refcnt wants to be on a different cache line from + * input/output/ops or performance tanks badly + */ atomic_t __refcnt; /* client references */ int __use; + unsigned long lastuse; union { struct dst_entry *next; struct rtable *rt_next; @@ -158,15 +163,7 @@ struct dst_entry * dst_clone(struct dst_entry * dst) return dst; } -static inline -void dst_release(struct dst_entry * dst) -{ - if (dst) { - WARN_ON(atomic_read(&dst->__refcnt) < 1); - smp_mb__before_atomic_dec(); - atomic_dec(&dst->__refcnt); - } -} +extern void dst_release(struct dst_entry *dst); /* Children define the path of the packet through the * Linux networking. Thus, destinations are stackable. |