diff options
| author | Eric Dumazet <edumazet@google.com> | 2021-12-07 04:30:34 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-08 07:44:59 +0300 |
| commit | 615d069dcf1207462ce30c05a2f47d461be8f6c8 (patch) | |
| tree | b40e9553339b264bccd7e861e78dedfe5f23dabb | |
| parent | 66ce07f7802b68616a008d390f2e6783d68fb79f (diff) | |
| download | linux-615d069dcf1207462ce30c05a2f47d461be8f6c8.tar.xz | |
llc: add net device refcount tracker
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | include/net/llc_conn.h | 1 | ||||
| -rw-r--r-- | net/llc/af_llc.c | 5 |
2 files changed, 4 insertions, 2 deletions
diff --git a/include/net/llc_conn.h b/include/net/llc_conn.h index ea985aa7a6c5..2c1ea3414640 100644 --- a/include/net/llc_conn.h +++ b/include/net/llc_conn.h @@ -38,6 +38,7 @@ struct llc_sock { struct llc_addr laddr; /* lsap/mac pair */ struct llc_addr daddr; /* dsap/mac pair */ struct net_device *dev; /* device to send to remote */ + netdevice_tracker dev_tracker; u32 copied_seq; /* head of yet unread data */ u8 retry_count; /* number of retries */ u8 ack_must_be_send; diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 3086f4a6ae68..26c00ebf4fba 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -224,7 +224,7 @@ static int llc_ui_release(struct socket *sock) } else { release_sock(sk); } - dev_put(llc->dev); + dev_put_track(llc->dev, &llc->dev_tracker); sock_put(sk); llc_sk_free(sk); out: @@ -295,6 +295,7 @@ static int llc_ui_autobind(struct socket *sock, struct sockaddr_llc *addr) llc->dev = dev_getfirstbyhwtype(&init_net, addr->sllc_arphrd); if (!llc->dev) goto out; + netdev_tracker_alloc(llc->dev, &llc->dev_tracker, GFP_KERNEL); rc = -EUSERS; llc->laddr.lsap = llc_ui_autoport(); if (!llc->laddr.lsap) @@ -362,7 +363,7 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen) } else llc->dev = dev_getbyhwaddr_rcu(&init_net, addr->sllc_arphrd, addr->sllc_mac); - dev_hold(llc->dev); + dev_hold_track(llc->dev, &llc->dev_tracker, GFP_ATOMIC); rcu_read_unlock(); if (!llc->dev) goto out; |