diff options
| author |   Vlad Buslov <vladbu@mellanox.com> | 2019-08-26 16:45:03 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-08-26 14:17:43 -0700 |
| commit | 9838b20a7fb28c69fa66ac8e68d967ffe1d0ecad (patch) | |
| tree | 9ed88766141671e1bd7f930d7b53746a18d11c37 /net/sched/cls_matchall.c | |
| parent | net: sched: conditionally obtain rtnl lock in cls hw offloads API (diff) | |
| download | linux-dev-9838b20a7fb28c69fa66ac8e68d967ffe1d0ecad.tar.xz linux-dev-9838b20a7fb28c69fa66ac8e68d967ffe1d0ecad.zip | |
net: sched: take rtnl lock in tc_setup_flow_action()
In order to allow using new flow_action infrastructure from unlocked
classifiers, modify tc_setup_flow_action() to accept new 'rtnl_held'
argument. Take rtnl lock before accessing tc_action data. This is necessary
to protect from concurrent action replace.
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/sched/cls_matchall.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c index 911d1ea28bb2..3266f25011cc 100644 --- a/net/sched/cls_matchall.c +++ b/net/sched/cls_matchall.c @@ -97,7 +97,7 @@ static int mall_replace_hw_filter(struct tcf_proto *tp, cls_mall.command = TC_CLSMATCHALL_REPLACE; cls_mall.cookie = cookie; - err = tc_setup_flow_action(&cls_mall.rule->action, &head->exts); + err = tc_setup_flow_action(&cls_mall.rule->action, &head->exts, true); if (err) { kfree(cls_mall.rule); mall_destroy_hw_filter(tp, head, cookie, NULL); @@ -300,7 +300,7 @@ static int mall_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb, TC_CLSMATCHALL_REPLACE : TC_CLSMATCHALL_DESTROY; cls_mall.cookie = (unsigned long)head; - err = tc_setup_flow_action(&cls_mall.rule->action, &head->exts); + err = tc_setup_flow_action(&cls_mall.rule->action, &head->exts, true); if (err) { kfree(cls_mall.rule); if (add && tc_skip_sw(head->flags)) { |