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| author | Florian Westphal <fw@strlen.de> | 2023-10-20 14:38:15 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2023-10-24 13:16:30 +0200 |
| commit | 643d1260366424412e8269caead410d333e3263f (patch) | |
| tree | 343e61c28953acb82bce302e442c54e72e3d1939 /include/net | |
| parent | ee6f05dcd6727669b6f49a8a6dafad94a40ee872 (diff) | |
| download | linux-643d1260366424412e8269caead410d333e3263f.tar.gz linux-643d1260366424412e8269caead410d333e3263f.tar.bz2 linux-643d1260366424412e8269caead410d333e3263f.zip | |
netfilter: conntrack: switch connlabels to atomic_t
The spinlock is back from the day when connabels did not have
a fixed size and reallocation had to be supported.
Remove it. This change also allows to call the helpers from
softirq or timers without deadlocks.
Also add WARN()s to catch refcounting imbalances.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/netfilter/nf_conntrack_labels.h | 2 | ||||
| -rw-r--r-- | include/net/netns/conntrack.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/include/net/netfilter/nf_conntrack_labels.h b/include/net/netfilter/nf_conntrack_labels.h index fcb19a4e8f2b..6903f72bcc15 100644 --- a/include/net/netfilter/nf_conntrack_labels.h +++ b/include/net/netfilter/nf_conntrack_labels.h @@ -39,7 +39,7 @@ static inline struct nf_conn_labels *nf_ct_labels_ext_add(struct nf_conn *ct) #ifdef CONFIG_NF_CONNTRACK_LABELS struct net *net = nf_ct_net(ct); - if (net->ct.labels_used == 0) + if (atomic_read(&net->ct.labels_used) == 0) return NULL; return nf_ct_ext_add(ct, NF_CT_EXT_LABELS, GFP_ATOMIC); diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h index 1f463b3957c7..bae914815aa3 100644 --- a/include/net/netns/conntrack.h +++ b/include/net/netns/conntrack.h @@ -107,7 +107,7 @@ struct netns_ct { struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb; struct nf_ip_net nf_ct_proto; #if defined(CONFIG_NF_CONNTRACK_LABELS) - unsigned int labels_used; + atomic_t labels_used; #endif }; #endif |