lk/linux-kernel-test
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[NET]: Make helper to get dst entry and "use" it

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There are many places that get the dst entry, increase the
__use counter and set the "lastuse" time stamp.

Make a helper for this.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov
2007-11-10 21:28:34 -08:00
committed by David S. Miller
parent b1667609cd
commit 03f49f3457
4 changed files with 15 additions and 26 deletions
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12
net/ipv4/route.c
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@@ -851,9 +851,7 @@ restart:
*/
rcu_assign_pointer(rt_hash_table[hash].chain, rth);
rth->u.dst.__use++;
dst_hold(&rth->u.dst);
rth->u.dst.lastuse = now;
dst_use(&rth->u.dst, now);
spin_unlock_bh(rt_hash_lock_addr(hash));
rt_drop(rt);
@@ -1930,9 +1928,7 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
rth->fl.oif == 0 &&
rth->fl.mark == skb->mark &&
rth->fl.fl4_tos == tos) {
rth->u.dst.lastuse = jiffies;
dst_hold(&rth->u.dst);
rth->u.dst.__use++;
dst_use(&rth->u.dst, jiffies);
RT_CACHE_STAT_INC(in_hit);
rcu_read_unlock();
skb->dst = (struct dst_entry*)rth;
@@ -2326,9 +2322,7 @@ int __ip_route_output_key(struct rtable **rp, const struct flowi *flp)
rth->fl.mark == flp->mark &&
!((rth->fl.fl4_tos ^ flp->fl4_tos) &
(IPTOS_RT_MASK | RTO_ONLINK))) {
rth->u.dst.lastuse = jiffies;
dst_hold(&rth->u.dst);
rth->u.dst.__use++;
dst_use(&rth->u.dst, jiffies);
RT_CACHE_STAT_INC(out_hit);
rcu_read_unlock_bh();
*rp = rth;