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net: sched: add netns refcount tracker to struct tcf_exts

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Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2021-12-09 23:44:24 -08:00 committed by Jakub Kicinski
parent 04a931e58d
commit dbdcda634c
1 changed files with 6 additions and 2 deletions
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8
include/net/pkt_cls.h
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@ -202,7 +202,8 @@ struct tcf_exts {
__u32 type; /* for backward compat(TCA_OLD_COMPAT) */ __u32 type; /* for backward compat(TCA_OLD_COMPAT) */
int nr_actions; int nr_actions;
struct tc_action **actions; struct tc_action **actions;
struct net *net; struct net *net;
netns_tracker ns_tracker;
#endif #endif
/* Map to export classifier specific extension TLV types to the /* Map to export classifier specific extension TLV types to the
* generic extensions API. Unsupported extensions must be set to 0. * generic extensions API. Unsupported extensions must be set to 0.
@ -218,6 +219,7 @@ static inline int tcf_exts_init(struct tcf_exts *exts, struct net *net,
exts->type = 0; exts->type = 0;
exts->nr_actions = 0; exts->nr_actions = 0;
exts->net = net; exts->net = net;
netns_tracker_alloc(net, &exts->ns_tracker, GFP_KERNEL);
exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *), exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *),
GFP_KERNEL); GFP_KERNEL);
if (!exts->actions) if (!exts->actions)
@ -236,6 +238,8 @@ static inline bool tcf_exts_get_net(struct tcf_exts *exts)
{ {
#ifdef CONFIG_NET_CLS_ACT #ifdef CONFIG_NET_CLS_ACT
exts->net = maybe_get_net(exts->net); exts->net = maybe_get_net(exts->net);
if (exts->net)
netns_tracker_alloc(exts->net, &exts->ns_tracker, GFP_KERNEL);
return exts->net != NULL; return exts->net != NULL;
#else #else
return true; return true;
@ -246,7 +250,7 @@ static inline void tcf_exts_put_net(struct tcf_exts *exts)
{ {
#ifdef CONFIG_NET_CLS_ACT #ifdef CONFIG_NET_CLS_ACT
if (exts->net) if (exts->net)
put_net(exts->net); put_net_track(exts->net, &exts->ns_tracker);
#endif #endif
} }