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| author | Vlad Buslov <vladbu@mellanox.com> | 2018-07-05 17:24:28 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-08 12:42:29 +0900 |
| commit | b409074e6693bcdaa7abbee2a035f22a9eabda53 (patch) | |
| tree | f531c8c864cbffaa0c2258d2dada07b1fc03d33b /net/sched/act_mirred.c | |
| parent | 2a2ea349704fffade9526d5122299edbbfd122ca (diff) | |
| download | linux-stable-b409074e6693bcdaa7abbee2a035f22a9eabda53.tar.gz linux-stable-b409074e6693bcdaa7abbee2a035f22a9eabda53.tar.bz2 linux-stable-b409074e6693bcdaa7abbee2a035f22a9eabda53.zip | |
net: sched: add 'delete' function to action ops
Extend action ops with 'delete' function. Each action type to implements
its own delete function that doesn't depend on rtnl lock.
Implement delete function that is required to delete actions without
holding rtnl lock. Use action API function that atomically deletes action
only if it is still in action idr. This implementation prevents concurrent
threads from deleting same action twice.
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_mirred.c')
| -rw-r--r-- | net/sched/act_mirred.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index 5434f08f2eb7..3d8300bce7e4 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -322,6 +322,13 @@ static struct net_device *tcf_mirred_get_dev(const struct tc_action *a) return rtnl_dereference(m->tcfm_dev); } +static int tcf_mirred_delete(struct net *net, u32 index) +{ + struct tc_action_net *tn = net_generic(net, mirred_net_id); + + return tcf_idr_delete_index(tn, index); +} + static struct tc_action_ops act_mirred_ops = { .kind = "mirred", .type = TCA_ACT_MIRRED, @@ -335,6 +342,7 @@ static struct tc_action_ops act_mirred_ops = { .lookup = tcf_mirred_search, .size = sizeof(struct tcf_mirred), .get_dev = tcf_mirred_get_dev, + .delete = tcf_mirred_delete, }; static __net_init int mirred_init_net(struct net *net) |