Commit 9c150e82 authored by David S. Miller's avatar David S. Miller

ipv4: Allocate fib metrics dynamically.

This is the initial gateway towards super-sharing metrics
if they are all set to zero for a route.
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a4daad6b
......@@ -77,7 +77,7 @@ struct fib_info {
int fib_protocol;
__be32 fib_prefsrc;
u32 fib_priority;
u32 fib_metrics[RTAX_MAX];
u32 *fib_metrics;
#define fib_mtu fib_metrics[RTAX_MTU-1]
#define fib_window fib_metrics[RTAX_WINDOW-1]
#define fib_rtt fib_metrics[RTAX_RTT-1]
......
......@@ -152,6 +152,7 @@ static void free_fib_info_rcu(struct rcu_head *head)
{
struct fib_info *fi = container_of(head, struct fib_info, rcu);
kfree(fi->fib_metrics);
kfree(fi);
}
......@@ -742,6 +743,9 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
fi = kzalloc(sizeof(*fi)+nhs*sizeof(struct fib_nh), GFP_KERNEL);
if (fi == NULL)
goto failure;
fi->fib_metrics = kzalloc(sizeof(u32) * RTAX_MAX, GFP_KERNEL);
if (!fi->fib_metrics)
goto failure;
fib_info_cnt++;
fi->fib_net = hold_net(net);
......
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