diff options
| author | Cong Wang <cong.wang@bytedance.com> | 2021-07-29 16:12:14 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-02 10:24:38 +0100 |
| commit | 695176bfe5dec2051f950bdac0ae0b21e29e6de3 (patch) | |
| tree | 95d1d7215360956706b566bf11f0f7d21e552701 /net/sched/cls_cgroup.c | |
| parent | 451395f798a3f0a9f257338bc1fbce9a1d6eaf52 (diff) | |
| download | linux-695176bfe5dec2051f950bdac0ae0b21e29e6de3.tar.bz2 | |
net_sched: refactor TC action init API
TC action ->init() API has 10 parameters, it becomes harder
to read. Some of them are just boolean and can be replaced
by flags. Similarly for the internal API tcf_action_init()
and tcf_exts_validate().
This patch converts them to flags and fold them into
the upper 16 bits of "flags", whose lower 16 bits are still
reserved for user-space. More specifically, the following
kernel flags are introduced:
TCA_ACT_FLAGS_POLICE replace 'name' in a few contexts, to
distinguish whether it is compatible with policer.
TCA_ACT_FLAGS_BIND replaces 'bind', to indicate whether
this action is bound to a filter.
TCA_ACT_FLAGS_REPLACE replaces 'ovr' in most contexts,
means we are replacing an existing action.
TCA_ACT_FLAGS_NO_RTNL replaces 'rtnl_held' but has the
opposite meaning, because we still hold RTNL in most
cases.
The only user-space flag TCA_ACT_FLAGS_NO_PERCPU_STATS is
untouched and still stored as before.
I have tested this patch with tdc and I do not see any
failure related to this patch.
Tested-by: Vlad Buslov <vladbu@nvidia.com>
Acked-by: Jamal Hadi Salim<jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/cls_cgroup.c')
| -rw-r--r-- | net/sched/cls_cgroup.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c index fb881144fa01..ed00001b528a 100644 --- a/net/sched/cls_cgroup.c +++ b/net/sched/cls_cgroup.c @@ -76,7 +76,7 @@ static void cls_cgroup_destroy_work(struct work_struct *work) static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb, struct tcf_proto *tp, unsigned long base, u32 handle, struct nlattr **tca, - void **arg, bool ovr, bool rtnl_held, + void **arg, u32 flags, struct netlink_ext_ack *extack) { struct nlattr *tb[TCA_CGROUP_MAX + 1]; @@ -108,8 +108,8 @@ static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb, if (err < 0) goto errout; - err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &new->exts, ovr, - true, extack); + err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &new->exts, flags, + extack); if (err < 0) goto errout; |