gnet_stats_start_copy_compat(struct sk_buff *skb, int type, int tc_stats_type,
int xstats_type, spinlock_t *lock, struct gnet_dump *d)
{
+ memset(d, 0, sizeof(*d));
+
spin_lock_bh(lock);
d->lock = lock;
- d->tail = (struct rtattr *) skb->tail;
+ if (type)
+ d->tail = (struct rtattr *) skb->tail;
d->skb = skb;
d->compat_tc_stats = tc_stats_type;
d->compat_xstats = xstats_type;
- d->xstats = NULL;
- if (d->compat_tc_stats)
- memset(&d->tc_stats, 0, sizeof(d->tc_stats));
+ if (d->tail)
+ return gnet_stats_copy(d, type, NULL, 0);
- return gnet_stats_copy(d, type, NULL, 0);
+ return 0;
}
/**
d->tc_stats.bytes = b->bytes;
d->tc_stats.packets = b->packets;
}
-
- return gnet_stats_copy(d, TCA_STATS_BASIC, b, sizeof(*b));
+
+ if (d->tail)
+ return gnet_stats_copy(d, TCA_STATS_BASIC, b, sizeof(*b));
+
+ return 0;
}
/**
d->tc_stats.pps = r->pps;
}
- return gnet_stats_copy(d, TCA_STATS_RATE_EST, r, sizeof(*r));
+ if (d->tail)
+ return gnet_stats_copy(d, TCA_STATS_RATE_EST, r, sizeof(*r));
+
+ return 0;
}
/**
d->tc_stats.backlog = q->backlog;
d->tc_stats.overlimits = q->overlimits;
}
-
- return gnet_stats_copy(d, TCA_STATS_QUEUE, q, sizeof(*q));
+
+ if (d->tail)
+ return gnet_stats_copy(d, TCA_STATS_QUEUE, q, sizeof(*q));
+
+ return 0;
}
/**
int
gnet_stats_copy_app(struct gnet_dump *d, void *st, int len)
{
- if (d->compat_xstats)
- d->xstats = (struct rtattr *) d->skb->tail;
- return gnet_stats_copy(d, TCA_STATS_APP, st, len);
+ if (d->compat_xstats) {
+ d->xstats = st;
+ d->xstats_len = len;
+ }
+
+ if (d->tail)
+ return gnet_stats_copy(d, TCA_STATS_APP, st, len);
+
+ return 0;
}
/**
int
gnet_stats_finish_copy(struct gnet_dump *d)
{
- d->tail->rta_len = d->skb->tail - (u8 *) d->tail;
+ if (d->tail)
+ d->tail->rta_len = d->skb->tail - (u8 *) d->tail;
if (d->compat_tc_stats)
if (gnet_stats_copy(d, d->compat_tc_stats, &d->tc_stats,
return -1;
if (d->compat_xstats && d->xstats) {
- if (gnet_stats_copy(d, d->compat_xstats, RTA_DATA(d->xstats),
- RTA_PAYLOAD(d->xstats)) < 0)
+ if (gnet_stats_copy(d, d->compat_xstats, d->xstats,
+ d->xstats_len) < 0)
return -1;
}