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ipmr, ip6mr: add net device refcount tracker to struct vif_device 

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2021-12-04 20:22:16 -08:00 committed by Jakub Kicinski
parent 095e200f17
commit 42120a8643
3 changed files with 6 additions and 2 deletions
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2
include/linux/mroute_base.h
View File

@ -12,6 +12,7 @@
/**
* struct vif_device - interface representor for multicast routing
* @dev: network device being used
* @dev_tracker: refcount tracker for @dev reference
* @bytes_in: statistic; bytes ingressing
* @bytes_out: statistic; bytes egresing
* @pkt_in: statistic; packets ingressing
@ -26,6 +27,7 @@
*/
struct vif_device {
struct net_device *dev;
netdevice_tracker dev_tracker;
unsigned long bytes_in, bytes_out;
unsigned long pkt_in, pkt_out;
unsigned long rate_limit;

3
net/ipv4/ipmr.c
View File

@ -696,7 +696,7 @@ static int vif_delete(struct mr_table *mrt, int vifi, int notify,
if (v->flags & (VIFF_TUNNEL | VIFF_REGISTER) && !notify)
unregister_netdevice_queue(dev, head);
dev_put(dev);
dev_put_track(dev, &v->dev_tracker);
return 0;
}
@ -896,6 +896,7 @@ static int vif_add(struct net *net, struct mr_table *mrt,
/* And finish update writing critical data */
write_lock_bh(&mrt_lock);
v->dev = dev;
netdev_tracker_alloc(dev, &v->dev_tracker, GFP_ATOMIC);
if (v->flags & VIFF_REGISTER)
mrt->mroute_reg_vif_num = vifi;
if (vifi+1 > mrt->maxvif)

3
net/ipv6/ip6mr.c
View File

@ -746,7 +746,7 @@ static int mif6_delete(struct mr_table *mrt, int vifi, int notify,
if ((v->flags & MIFF_REGISTER) && !notify)
unregister_netdevice_queue(dev, head);
dev_put(dev);
dev_put_track(dev, &v->dev_tracker);
return 0;
}
@ -919,6 +919,7 @@ static int mif6_add(struct net *net, struct mr_table *mrt,
/* And finish update writing critical data */
write_lock_bh(&mrt_lock);
v->dev = dev;
netdev_tracker_alloc(dev, &v->dev_tracker, GFP_ATOMIC);
#ifdef CONFIG_IPV6_PIMSM_V2
if (v->flags & MIFF_REGISTER)
mrt->mroute_reg_vif_num = vifi;