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Commit 144001bd authored by David S. Miller's avatar David S. Miller
Browse files

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



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: default avatarDavid S. Miller <davem@davemloft.net>
parent 60659823

include/net/inetpeer.h

+7 −0
Original line number Diff line number Diff line
@@ -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);

net/ipv4/inetpeer.c

+1 −0
Original line number Diff line number Diff line
@@ -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);