[NETNS][DST] dst: pass the dst_ops as parameter to the gc functions

The garbage collection function receive the dst_ops structure as
parameter. This is useful for the next incoming patchset because it
will need the dst_ops (there will be several instances) and the
network namespace pointer (contained in the dst_ops).

The protocols which do not take care of the namespaces will not be
impacted by this change (expect for the function signature), they do
just ignore the parameter.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 4 insertions, 4 deletions

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 1e59c0d4b11e..fc0145385e80 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -154,7 +154,7 @@ static void		 ipv4_dst_ifdown(struct dst_entry *dst,
 static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst);
 static void              ipv4_link_failure(struct sk_buff *skb);
 static void              ip_rt_update_pmtu(struct dst_entry *dst, u32 mtu);
-static int rt_garbage_collect(void);
+static int rt_garbage_collect(struct dst_ops *ops);
 
 
 static struct dst_ops ipv4_dst_ops = {
@@ -820,7 +820,7 @@ static void rt_secret_rebuild(unsigned long dummy)
    and when load increases it reduces to limit cache size.
  */
 
-static int rt_garbage_collect(void)
+static int rt_garbage_collect(struct dst_ops *ops)
 {
         static unsigned long expire = RT_GC_TIMEOUT;
         static unsigned long last_gc;
@@ -1035,7 +1035,7 @@ restart:
                                 int saved_int = ip_rt_gc_min_interval;
                                 ip_rt_gc_elasticity     = 1;
                                 ip_rt_gc_min_interval   = 0;
-                                rt_garbage_collect();
+                                rt_garbage_collect(&ipv4_dst_ops);
                                 ip_rt_gc_min_interval   = saved_int;
                                 ip_rt_gc_elasticity     = saved_elasticity;
                                 goto restart;
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 656345f75e0d..f04516c880fb 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -185,7 +185,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
         fl->fl4_tos = iph->tos;
 }
 
-static inline int xfrm4_garbage_collect(void)
+static inline int xfrm4_garbage_collect(struct dst_ops *ops)
 {
         xfrm4_policy_afinfo.garbage_collect();
         return (atomic_read(&xfrm4_dst_ops.entries) > xfrm4_dst_ops.gc_thresh*2);