git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-23 05:56:14 -04:00
Code Issues Packages Projects Releases Wiki Activity

net: dst: add net device refcount tracking to dst_entry

Browse Source 
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>
This commit is contained in:
Eric Dumazet
2021-12-04 20:22:03 -08:00
committed by Jakub Kicinski
parent 4dbd24f65c
commit 9038c32000
5 changed files with 29 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
include/linux/netdevice.h
View File

@@ -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.