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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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90a6ec8535
Similar to commitd7fb60b9ca("net_sched: get rid of tcfa_rcu"), TC actions don't need to respect RCU grace period, because it is either just detached from tc filter (standalone case) or it is removed together with tc filter (bound case) in which case RCU grace period is already respected at filter layer. Fixes:5c5670fae4("net/sched: Introduce sample tc action") Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jiri Pirko <jiri@resnulli.us> Cc: Yotam Gigi <yotamg@mellanox.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
50 lines
1 KiB
C
50 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NET_TC_SAMPLE_H
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#define __NET_TC_SAMPLE_H
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#include <net/act_api.h>
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#include <linux/tc_act/tc_sample.h>
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#include <net/psample.h>
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struct tcf_sample {
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struct tc_action common;
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u32 rate;
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bool truncate;
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u32 trunc_size;
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struct psample_group __rcu *psample_group;
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u32 psample_group_num;
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struct list_head tcfm_list;
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};
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#define to_sample(a) ((struct tcf_sample *)a)
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static inline bool is_tcf_sample(const struct tc_action *a)
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{
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#ifdef CONFIG_NET_CLS_ACT
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return a->ops && a->ops->type == TCA_ACT_SAMPLE;
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#else
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return false;
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#endif
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}
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static inline __u32 tcf_sample_rate(const struct tc_action *a)
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{
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return to_sample(a)->rate;
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}
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static inline bool tcf_sample_truncate(const struct tc_action *a)
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{
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return to_sample(a)->truncate;
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}
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static inline int tcf_sample_trunc_size(const struct tc_action *a)
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{
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return to_sample(a)->trunc_size;
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}
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static inline struct psample_group *
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tcf_sample_psample_group(const struct tc_action *a)
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{
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return rcu_dereference(to_sample(a)->psample_group);
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}
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#endif /* __NET_TC_SAMPLE_H */
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