diff options
| author | Eric Dumazet <edumazet@google.com> | 2021-12-10 10:44:23 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-10 17:38:26 +0300 |
| commit | 04a931e58d1944ab3d1e11fdfde1947fbe5b6a37 (patch) | |
| tree | 3887a7b43006ba018d67475d9895221441d390e2 /fs/proc | |
| parent | ffa84b5ffb37a957d6062385112ab1069f760de6 (diff) | |
| download | linux-04a931e58d1944ab3d1e11fdfde1947fbe5b6a37.tar.xz | |
net: add netns refcount tracker to struct seq_net_private
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/proc_net.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c index 15c2e55d2ed2..39b823ab2564 100644 --- a/fs/proc/proc_net.c +++ b/fs/proc/proc_net.c @@ -61,15 +61,27 @@ static int seq_open_net(struct inode *inode, struct file *file) } #ifdef CONFIG_NET_NS p->net = net; + netns_tracker_alloc(net, &p->ns_tracker, GFP_KERNEL); #endif return 0; } +static void seq_file_net_put_net(struct seq_file *seq) +{ +#ifdef CONFIG_NET_NS + struct seq_net_private *priv = seq->private; + + put_net_track(priv->net, &priv->ns_tracker); +#else + put_net(&init_net); +#endif +} + static int seq_release_net(struct inode *ino, struct file *f) { struct seq_file *seq = f->private_data; - put_net(seq_file_net(seq)); + seq_file_net_put_net(seq); seq_release_private(ino, f); return 0; } @@ -87,7 +99,8 @@ int bpf_iter_init_seq_net(void *priv_data, struct bpf_iter_aux_info *aux) #ifdef CONFIG_NET_NS struct seq_net_private *p = priv_data; - p->net = get_net(current->nsproxy->net_ns); + p->net = get_net_track(current->nsproxy->net_ns, &p->ns_tracker, + GFP_KERNEL); #endif return 0; } @@ -97,7 +110,7 @@ void bpf_iter_fini_seq_net(void *priv_data) #ifdef CONFIG_NET_NS struct seq_net_private *p = priv_data; - put_net(p->net); + put_net_track(p->net, &p->ns_tracker); #endif } |