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inetpeer: Mark metrics as "new" in fresh inetpeer entries.

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Set the RTAX_LOCKED metric to INETPEER_METRICS_NEW (basically,
all ones) on fresh inetpeer entries.

This way code can determine if default metrics have been loaded
in from a routing table entry already.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-01-27 13:52:16 -08:00
parent 606598237c
commit 144001bddc
2 changed files with 8 additions and 0 deletions
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7
include/net/inetpeer.h
View file

@ -51,6 +51,13 @@ struct inet_peer {
void inet_initpeers(void) __init;
#define INETPEER_METRICS_NEW (~(u32) 0)
static inline bool inet_metrics_new(const struct inet_peer *p)
{
return p->metrics[RTAX_LOCK-1] == INETPEER_METRICS_NEW;
}
/* can be called with or without local BH being disabled */
struct inet_peer *inet_getpeer(struct inetpeer_addr *daddr, int create);

1
net/ipv4/inetpeer.c
View file

@ -512,6 +512,7 @@ struct inet_peer *inet_getpeer(struct inetpeer_addr *daddr, int create)
atomic_set(&p->rid, 0);
atomic_set(&p->ip_id_count, secure_ip_id(daddr->a4));
p->tcp_ts_stamp = 0;
p->metrics[RTAX_LOCK-1] = INETPEER_METRICS_NEW;
INIT_LIST_HEAD(&p->unused);