[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>
diff --git a/include/net/dst.h b/include/net/dst.h
index e03ea0c..e24a416 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -89,7 +89,7 @@
__be16 protocol;
unsigned gc_thresh;
- int (*gc)(void);
+ int (*gc)(struct dst_ops *ops);
struct dst_entry * (*check)(struct dst_entry *, __u32 cookie);
void (*destroy)(struct dst_entry *);
void (*ifdown)(struct dst_entry *,
diff --git a/net/core/dst.c b/net/core/dst.c
index 7eceeba..7deef48 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -165,7 +165,7 @@
struct dst_entry * dst;
if (ops->gc && atomic_read(&ops->entries) > ops->gc_thresh) {
- if (ops->gc())
+ if (ops->gc(ops))
return NULL;
}
dst = kmem_cache_zalloc(ops->kmem_cachep, GFP_ATOMIC);
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 938ba7d..31be29b 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -107,7 +107,7 @@
static unsigned long dn_rt_deadline;
-static int dn_dst_gc(void);
+static int dn_dst_gc(struct dst_ops *ops);
static struct dst_entry *dn_dst_check(struct dst_entry *, __u32);
static struct dst_entry *dn_dst_negative_advice(struct dst_entry *);
static void dn_dst_link_failure(struct sk_buff *);
@@ -185,7 +185,7 @@
mod_timer(&dn_route_timer, now + decnet_dst_gc_interval * HZ);
}
-static int dn_dst_gc(void)
+static int dn_dst_gc(struct dst_ops *ops)
{
struct dn_route *rt, **rtp;
int i;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 1e59c0d..fc01453 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -154,7 +154,7 @@
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 @@
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 @@
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 656345f..f04516c 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -185,7 +185,7 @@
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);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index a429900..4004c5f 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -79,7 +79,7 @@
static void ip6_dst_destroy(struct dst_entry *);
static void ip6_dst_ifdown(struct dst_entry *,
struct net_device *dev, int how);
-static int ip6_dst_gc(void);
+static int ip6_dst_gc(struct dst_ops *ops);
static int ip6_pkt_discard(struct sk_buff *skb);
static int ip6_pkt_discard_out(struct sk_buff *skb);
@@ -983,7 +983,7 @@
return freed;
}
-static int ip6_dst_gc(void)
+static int ip6_dst_gc(struct dst_ops *ops)
{
static unsigned expire = 30*HZ;
static unsigned long last_gc;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index cf373b4..c25a6b5 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -212,7 +212,7 @@
}
}
-static inline int xfrm6_garbage_collect(void)
+static inline int xfrm6_garbage_collect(struct dst_ops *ops)
{
xfrm6_policy_afinfo.garbage_collect();
return (atomic_read(&xfrm6_dst_ops.entries) > xfrm6_dst_ops.gc_thresh*2);