diff options
| author | Eric Dumazet <edumazet@google.com> | 2021-12-04 20:22:03 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-06 16:05:10 -0800 |
| commit | 9038c320001dd07f60736018edf608ac5baca0ab (patch) | |
| tree | fea21a92f9a586370c4c85a5aab4adca4c160e7f /include/linux/netdevice.h | |
| parent | 4dbd24f65c60259ce5d1563433ecaf5fab693c83 (diff) | |
| download | linux-stable-9038c320001dd07f60736018edf608ac5baca0ab.tar.gz | |
net: dst: add net device refcount tracking to dst_entry
We want to track all dev_hold()/dev_put() to ease leak hunting.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/netdevice.h')
| -rw-r--r-- | include/linux/netdevice.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index b4f704337f65..afed3b10491b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3883,6 +3883,23 @@ static inline void dev_put_track(struct net_device *dev, } } +static inline void dev_replace_track(struct net_device *odev, + struct net_device *ndev, + netdevice_tracker *tracker, + gfp_t gfp) +{ +#ifdef CONFIG_NET_DEV_REFCNT_TRACKER + if (odev) + ref_tracker_free(&odev->refcnt_tracker, tracker); +#endif + dev_hold(ndev); + dev_put(odev); +#ifdef CONFIG_NET_DEV_REFCNT_TRACKER + if (ndev) + ref_tracker_alloc(&ndev->refcnt_tracker, tracker, gfp); +#endif +} + /* Carrier loss detection, dial on demand. The functions netif_carrier_on * and _off may be called from IRQ context, but it is caller * who is responsible for serialization of these calls. |