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-rw-r--r--net/sched/cls_api.c168
-rw-r--r--net/sched/cls_basic.c12
-rw-r--r--net/sched/cls_bpf.c12
-rw-r--r--net/sched/cls_cgroup.c11
-rw-r--r--net/sched/cls_flow.c13
-rw-r--r--net/sched/cls_flower.c13
-rw-r--r--net/sched/cls_fw.c13
-rw-r--r--net/sched/cls_matchall.c13
-rw-r--r--net/sched/cls_route.c12
-rw-r--r--net/sched/cls_rsvp.h13
-rw-r--r--net/sched/cls_tcindex.c15
-rw-r--r--net/sched/cls_u32.c12
-rw-r--r--net/sched/sch_api.c6
13 files changed, 178 insertions, 135 deletions
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 8fe38aa180cf..e8ed461e94af 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -69,7 +69,8 @@ static const struct tcf_proto_ops *__tcf_proto_lookup_ops(const char *kind)
}
static const struct tcf_proto_ops *
-tcf_proto_lookup_ops(const char *kind, struct netlink_ext_ack *extack)
+tcf_proto_lookup_ops(const char *kind, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
const struct tcf_proto_ops *ops;
@@ -77,9 +78,11 @@ tcf_proto_lookup_ops(const char *kind, struct netlink_ext_ack *extack)
if (ops)
return ops;
#ifdef CONFIG_MODULES
- rtnl_unlock();
+ if (rtnl_held)
+ rtnl_unlock();
request_module("cls_%s", kind);
- rtnl_lock();
+ if (rtnl_held)
+ rtnl_lock();
ops = __tcf_proto_lookup_ops(kind);
/* We dropped the RTNL semaphore in order to perform
* the module load. So, even if we succeeded in loading
@@ -162,6 +165,7 @@ static inline u32 tcf_auto_prio(struct tcf_proto *tp)
static struct tcf_proto *tcf_proto_create(const char *kind, u32 protocol,
u32 prio, struct tcf_chain *chain,
+ bool rtnl_held,
struct netlink_ext_ack *extack)
{
struct tcf_proto *tp;
@@ -171,7 +175,7 @@ static struct tcf_proto *tcf_proto_create(const char *kind, u32 protocol,
if (!tp)
return ERR_PTR(-ENOBUFS);
- tp->ops = tcf_proto_lookup_ops(kind, extack);
+ tp->ops = tcf_proto_lookup_ops(kind, rtnl_held, extack);
if (IS_ERR(tp->ops)) {
err = PTR_ERR(tp->ops);
goto errout;
@@ -202,20 +206,20 @@ static void tcf_proto_get(struct tcf_proto *tp)
static void tcf_chain_put(struct tcf_chain *chain);
-static void tcf_proto_destroy(struct tcf_proto *tp,
+static void tcf_proto_destroy(struct tcf_proto *tp, bool rtnl_held,
struct netlink_ext_ack *extack)
{
- tp->ops->destroy(tp, extack);
+ tp->ops->destroy(tp, rtnl_held, extack);
tcf_chain_put(tp->chain);
module_put(tp->ops->owner);
kfree_rcu(tp, rcu);
}
-static void tcf_proto_put(struct tcf_proto *tp,
+static void tcf_proto_put(struct tcf_proto *tp, bool rtnl_held,
struct netlink_ext_ack *extack)
{
if (refcount_dec_and_test(&tp->refcnt))
- tcf_proto_destroy(tp, extack);
+ tcf_proto_destroy(tp, rtnl_held, extack);
}
static int walker_noop(struct tcf_proto *tp, void *d, struct tcf_walker *arg)
@@ -223,21 +227,21 @@ static int walker_noop(struct tcf_proto *tp, void *d, struct tcf_walker *arg)
return -1;
}
-static bool tcf_proto_is_empty(struct tcf_proto *tp)
+static bool tcf_proto_is_empty(struct tcf_proto *tp, bool rtnl_held)
{
struct tcf_walker walker = { .fn = walker_noop, };
if (tp->ops->walk) {
- tp->ops->walk(tp, &walker);
+ tp->ops->walk(tp, &walker, rtnl_held);
return !walker.stop;
}
return true;
}
-static bool tcf_proto_check_delete(struct tcf_proto *tp)
+static bool tcf_proto_check_delete(struct tcf_proto *tp, bool rtnl_held)
{
spin_lock(&tp->lock);
- if (tcf_proto_is_empty(tp))
+ if (tcf_proto_is_empty(tp, rtnl_held))
tp->deleting = true;
spin_unlock(&tp->lock);
return tp->deleting;
@@ -506,7 +510,7 @@ static void tcf_chain_put_explicitly_created(struct tcf_chain *chain)
__tcf_chain_put(chain, false, true);
}
-static void tcf_chain_flush(struct tcf_chain *chain)
+static void tcf_chain_flush(struct tcf_chain *chain, bool rtnl_held)
{
struct tcf_proto *tp, *tp_next;
@@ -519,7 +523,7 @@ static void tcf_chain_flush(struct tcf_chain *chain)
while (tp) {
tp_next = rcu_dereference_protected(tp->next, 1);
- tcf_proto_put(tp, NULL);
+ tcf_proto_put(tp, rtnl_held, NULL);
tp = tp_next;
}
}
@@ -1070,18 +1074,19 @@ __tcf_get_next_proto(struct tcf_chain *chain, struct tcf_proto *tp)
*/
struct tcf_proto *
-tcf_get_next_proto(struct tcf_chain *chain, struct tcf_proto *tp)
+tcf_get_next_proto(struct tcf_chain *chain, struct tcf_proto *tp,
+ bool rtnl_held)
{
struct tcf_proto *tp_next = __tcf_get_next_proto(chain, tp);
if (tp)
- tcf_proto_put(tp, NULL);
+ tcf_proto_put(tp, rtnl_held, NULL);
return tp_next;
}
EXPORT_SYMBOL(tcf_get_next_proto);
-static void tcf_block_flush_all_chains(struct tcf_block *block)
+static void tcf_block_flush_all_chains(struct tcf_block *block, bool rtnl_held)
{
struct tcf_chain *chain;
@@ -1092,12 +1097,12 @@ static void tcf_block_flush_all_chains(struct tcf_block *block)
chain;
chain = tcf_get_next_chain(block, chain)) {
tcf_chain_put_explicitly_created(chain);
- tcf_chain_flush(chain);
+ tcf_chain_flush(chain, rtnl_held);
}
}
static void __tcf_block_put(struct tcf_block *block, struct Qdisc *q,
- struct tcf_block_ext_info *ei)
+ struct tcf_block_ext_info *ei, bool rtnl_held)
{
if (refcount_dec_and_mutex_lock(&block->refcnt, &block->lock)) {
/* Flushing/putting all chains will cause the block to be
@@ -1118,15 +1123,15 @@ static void __tcf_block_put(struct tcf_block *block, struct Qdisc *q,
if (free_block)
tcf_block_destroy(block);
else
- tcf_block_flush_all_chains(block);
+ tcf_block_flush_all_chains(block, rtnl_held);
} else if (q) {
tcf_block_offload_unbind(block, q, ei);
}
}
-static void tcf_block_refcnt_put(struct tcf_block *block)
+static void tcf_block_refcnt_put(struct tcf_block *block, bool rtnl_held)
{
- __tcf_block_put(block, NULL, NULL);
+ __tcf_block_put(block, NULL, NULL, rtnl_held);
}
/* Find tcf block.
@@ -1244,10 +1249,11 @@ errout_qdisc:
return ERR_PTR(err);
}
-static void tcf_block_release(struct Qdisc *q, struct tcf_block *block)
+static void tcf_block_release(struct Qdisc *q, struct tcf_block *block,
+ bool rtnl_held)
{
if (!IS_ERR_OR_NULL(block))
- tcf_block_refcnt_put(block);
+ tcf_block_refcnt_put(block, rtnl_held);
if (q)
qdisc_put(q);
@@ -1358,7 +1364,7 @@ err_chain0_head_change_cb_add:
tcf_block_owner_del(block, q, ei->binder_type);
err_block_owner_add:
err_block_insert:
- tcf_block_refcnt_put(block);
+ tcf_block_refcnt_put(block, true);
return err;
}
EXPORT_SYMBOL(tcf_block_get_ext);
@@ -1395,7 +1401,7 @@ void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q,
tcf_chain0_head_change_cb_del(block, ei);
tcf_block_owner_del(block, q, ei->binder_type);
- __tcf_block_put(block, q, ei);
+ __tcf_block_put(block, q, ei, true);
}
EXPORT_SYMBOL(tcf_block_put_ext);
@@ -1464,7 +1470,7 @@ tcf_block_playback_offloads(struct tcf_block *block, tc_setup_cb_t *cb,
for (tp = __tcf_get_next_proto(chain, NULL); tp;
tp_prev = tp,
tp = __tcf_get_next_proto(chain, tp),
- tcf_proto_put(tp_prev, NULL)) {
+ tcf_proto_put(tp_prev, true, NULL)) {
if (tp->ops->reoffload) {
err = tp->ops->reoffload(tp, add, cb, cb_priv,
extack);
@@ -1481,7 +1487,7 @@ tcf_block_playback_offloads(struct tcf_block *block, tc_setup_cb_t *cb,
return 0;
err_playback_remove:
- tcf_proto_put(tp, NULL);
+ tcf_proto_put(tp, true, NULL);
tcf_chain_put(chain);
tcf_block_playback_offloads(block, cb, cb_priv, false, offload_in_use,
extack);
@@ -1654,7 +1660,8 @@ static struct tcf_proto *tcf_chain_tp_find(struct tcf_chain *chain,
static struct tcf_proto *tcf_chain_tp_insert_unique(struct tcf_chain *chain,
struct tcf_proto *tp_new,
- u32 protocol, u32 prio)
+ u32 protocol, u32 prio,
+ bool rtnl_held)
{
struct tcf_chain_info chain_info;
struct tcf_proto *tp;
@@ -1669,10 +1676,10 @@ static struct tcf_proto *tcf_chain_tp_insert_unique(struct tcf_chain *chain,
mutex_unlock(&chain->filter_chain_lock);
if (tp) {
- tcf_proto_destroy(tp_new, NULL);
+ tcf_proto_destroy(tp_new, rtnl_held, NULL);
tp_new = tp;
} else if (err) {
- tcf_proto_destroy(tp_new, NULL);
+ tcf_proto_destroy(tp_new, rtnl_held, NULL);
tp_new = ERR_PTR(err);
}
@@ -1680,7 +1687,7 @@ static struct tcf_proto *tcf_chain_tp_insert_unique(struct tcf_chain *chain,
}
static void tcf_chain_tp_delete_empty(struct tcf_chain *chain,
- struct tcf_proto *tp,
+ struct tcf_proto *tp, bool rtnl_held,
struct netlink_ext_ack *extack)
{
struct tcf_chain_info chain_info;
@@ -1705,7 +1712,7 @@ static void tcf_chain_tp_delete_empty(struct tcf_chain *chain,
* concurrently.
* Mark tp for deletion if it is empty.
*/
- if (!tp_iter || !tcf_proto_check_delete(tp)) {
+ if (!tp_iter || !tcf_proto_check_delete(tp, rtnl_held)) {
mutex_unlock(&chain->filter_chain_lock);
return;
}
@@ -1716,7 +1723,7 @@ static void tcf_chain_tp_delete_empty(struct tcf_chain *chain,
RCU_INIT_POINTER(*chain_info.pprev, next);
mutex_unlock(&chain->filter_chain_lock);
- tcf_proto_put(tp, extack);
+ tcf_proto_put(tp, rtnl_held, extack);
}
static struct tcf_proto *tcf_chain_tp_find(struct tcf_chain *chain,
@@ -1755,7 +1762,8 @@ static struct tcf_proto *tcf_chain_tp_find(struct tcf_chain *chain,
static int tcf_fill_node(struct net *net, struct sk_buff *skb,
struct tcf_proto *tp, struct tcf_block *block,
struct Qdisc *q, u32 parent, void *fh,
- u32 portid, u32 seq, u16 flags, int event)
+ u32 portid, u32 seq, u16 flags, int event,
+ bool rtnl_held)
{
struct tcmsg *tcm;
struct nlmsghdr *nlh;
@@ -1783,7 +1791,8 @@ static int tcf_fill_node(struct net *net, struct sk_buff *skb,
if (!fh) {
tcm->tcm_handle = 0;
} else {
- if (tp->ops->dump && tp->ops->dump(net, tp, fh, skb, tcm) < 0)
+ if (tp->ops->dump &&
+ tp->ops->dump(net, tp, fh, skb, tcm, rtnl_held) < 0)
goto nla_put_failure;
}
nlh->nlmsg_len = skb_tail_pointer(skb) - b;
@@ -1798,7 +1807,8 @@ nla_put_failure:
static int tfilter_notify(struct net *net, struct sk_buff *oskb,
struct nlmsghdr *n, struct tcf_proto *tp,
struct tcf_block *block, struct Qdisc *q,
- u32 parent, void *fh, int event, bool unicast)
+ u32 parent, void *fh, int event, bool unicast,
+ bool rtnl_held)
{
struct sk_buff *skb;
u32 portid = oskb ? NETLINK_CB(oskb).portid : 0;
@@ -1808,7 +1818,8 @@ static int tfilter_notify(struct net *net, struct sk_buff *oskb,
return -ENOBUFS;
if (tcf_fill_node(net, skb, tp, block, q, parent, fh, portid,
- n->nlmsg_seq, n->nlmsg_flags, event) <= 0) {
+ n->nlmsg_seq, n->nlmsg_flags, event,
+ rtnl_held) <= 0) {
kfree_skb(skb);
return -EINVAL;
}
@@ -1824,7 +1835,7 @@ static int tfilter_del_notify(struct net *net, struct sk_buff *oskb,
struct nlmsghdr *n, struct tcf_proto *tp,
struct tcf_block *block, struct Qdisc *q,
u32 parent, void *fh, bool unicast, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct sk_buff *skb;
u32 portid = oskb ? NETLINK_CB(oskb).portid : 0;
@@ -1835,13 +1846,14 @@ static int tfilter_del_notify(struct net *net, struct sk_buff *oskb,
return -ENOBUFS;
if (tcf_fill_node(net, skb, tp, block, q, parent, fh, portid,
- n->nlmsg_seq, n->nlmsg_flags, RTM_DELTFILTER) <= 0) {
+ n->nlmsg_seq, n->nlmsg_flags, RTM_DELTFILTER,
+ rtnl_held) <= 0) {
NL_SET_ERR_MSG(extack, "Failed to build del event notification");
kfree_skb(skb);
return -EINVAL;
}
- err = tp->ops->delete(tp, fh, last, extack);
+ err = tp->ops->delete(tp, fh, last, rtnl_held, extack);
if (err) {
kfree_skb(skb);
return err;
@@ -1860,14 +1872,15 @@ static int tfilter_del_notify(struct net *net, struct sk_buff *oskb,
static void tfilter_notify_chain(struct net *net, struct sk_buff *oskb,
struct tcf_block *block, struct Qdisc *q,
u32 parent, struct nlmsghdr *n,
- struct tcf_chain *chain, int event)
+ struct tcf_chain *chain, int event,
+ bool rtnl_held)
{
struct tcf_proto *tp;
- for (tp = tcf_get_next_proto(chain, NULL);
- tp; tp = tcf_get_next_proto(chain, tp))
+ for (tp = tcf_get_next_proto(chain, NULL, rtnl_held);
+ tp; tp = tcf_get_next_proto(chain, tp, rtnl_held))
tfilter_notify(net, oskb, n, tp, block,
- q, parent, NULL, event, false);
+ q, parent, NULL, event, false, rtnl_held);
}
static void tfilter_put(struct tcf_proto *tp, void *fh)
@@ -1896,6 +1909,7 @@ static int tc_new_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
void *fh;
int err;
int tp_created;
+ bool rtnl_held = true;
if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN))
return -EPERM;
@@ -1987,14 +2001,16 @@ replay:
mutex_unlock(&chain->filter_chain_lock);
tp_new = tcf_proto_create(nla_data(tca[TCA_KIND]),
- protocol, prio, chain, extack);
+ protocol, prio, chain, rtnl_held,
+ extack);
if (IS_ERR(tp_new)) {
err = PTR_ERR(tp_new);
goto errout_tp;
}
tp_created = 1;
- tp = tcf_chain_tp_insert_unique(chain, tp_new, protocol, prio);
+ tp = tcf_chain_tp_insert_unique(chain, tp_new, protocol, prio,
+ rtnl_held);
if (IS_ERR(tp)) {
err = PTR_ERR(tp);
goto errout_tp;
@@ -2032,24 +2048,24 @@ replay:
err = tp->ops->change(net, skb, tp, cl, t->tcm_handle, tca, &fh,
n->nlmsg_flags & NLM_F_CREATE ? TCA_ACT_NOREPLACE : TCA_ACT_REPLACE,
- extack);
+ rtnl_held, extack);
if (err == 0) {
tfilter_notify(net, skb, n, tp, block, q, parent, fh,
- RTM_NEWTFILTER, false);
+ RTM_NEWTFILTER, false, rtnl_held);
tfilter_put(tp, fh);
}
errout:
if (err && tp_created)
- tcf_chain_tp_delete_empty(chain, tp, NULL);
+ tcf_chain_tp_delete_empty(chain, tp, rtnl_held, NULL);
errout_tp:
if (chain) {
if (tp && !IS_ERR(tp))
- tcf_proto_put(tp, NULL);
+ tcf_proto_put(tp, rtnl_held, NULL);
if (!tp_created)
tcf_chain_put(chain);
}
- tcf_block_release(q, block);
+ tcf_block_release(q, block, rtnl_held);
if (err == -EAGAIN)
/* Replay the request. */
goto replay;
@@ -2078,6 +2094,7 @@ static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
unsigned long cl = 0;
void *fh = NULL;
int err;
+ bool rtnl_held = true;
if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN))
return -EPERM;
@@ -2127,8 +2144,8 @@ static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
if (prio == 0) {
tfilter_notify_chain(net, skb, block, q, parent, n,
- chain, RTM_DELTFILTER);
- tcf_chain_flush(chain);
+ chain, RTM_DELTFILTER, rtnl_held);
+ tcf_chain_flush(chain, rtnl_held);
err = 0;
goto errout;
}
@@ -2148,9 +2165,9 @@ static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
tcf_chain_tp_remove(chain, &chain_info, tp);
mutex_unlock(&chain->filter_chain_lock);
- tcf_proto_put(tp, NULL);
+ tcf_proto_put(tp, rtnl_held, NULL);
tfilter_notify(net, skb, n, tp, block, q, parent, fh,
- RTM_DELTFILTER, false);
+ RTM_DELTFILTER, false, rtnl_held);
err = 0;
goto errout;
}
@@ -2166,20 +2183,21 @@ static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
err = tfilter_del_notify(net, skb, n, tp, block,
q, parent, fh, false, &last,
- extack);
+ rtnl_held, extack);
+
if (err)
goto errout;
if (last)
- tcf_chain_tp_delete_empty(chain, tp, extack);
+ tcf_chain_tp_delete_empty(chain, tp, rtnl_held, extack);
}
errout:
if (chain) {
if (tp && !IS_ERR(tp))
- tcf_proto_put(tp, NULL);
+ tcf_proto_put(tp, rtnl_held, NULL);
tcf_chain_put(chain);
}
- tcf_block_release(q, block);
+ tcf_block_release(q, block, rtnl_held);
return err;
errout_locked:
@@ -2205,6 +2223,7 @@ static int tc_get_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
unsigned long cl = 0;
void *fh = NULL;
int err;
+ bool rtnl_held = true;
err = nlmsg_parse(n, sizeof(*t), tca, TCA_MAX, rtm_tca_policy, extack);
if (err < 0)
@@ -2263,7 +2282,7 @@ static int tc_get_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
err = -ENOENT;
} else {
err = tfilter_notify(net, skb, n, tp, block, q, parent,
- fh, RTM_NEWTFILTER, true);
+ fh, RTM_NEWTFILTER, true, rtnl_held);
if (err < 0)
NL_SET_ERR_MSG(extack, "Failed to send filter notify message");
}
@@ -2272,10 +2291,10 @@ static int tc_get_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
errout:
if (chain) {
if (tp && !IS_ERR(tp))
- tcf_proto_put(tp, NULL);
+ tcf_proto_put(tp, rtnl_held, NULL);
tcf_chain_put(chain);
}
- tcf_block_release(q, block);
+ tcf_block_release(q, block, rtnl_held);
return err;
}
@@ -2296,7 +2315,7 @@ static int tcf_node_dump(struct tcf_proto *tp, void *n, struct tcf_walker *arg)
return tcf_fill_node(net, a->skb, tp, a->block, a->q, a->parent,
n, NETLINK_CB(a->cb->skb).portid,
a->cb->nlh->nlmsg_seq, NLM_F_MULTI,
- RTM_NEWTFILTER);
+ RTM_NEWTFILTER, true);
}
static bool tcf_chain_dump(struct tcf_chain *chain, struct Qdisc *q, u32 parent,
@@ -2313,7 +2332,7 @@ static bool tcf_chain_dump(struct tcf_chain *chain, struct Qdisc *q, u32 parent,
tp;
tp_prev = tp,
tp = __tcf_get_next_proto(chain, tp),
- tcf_proto_put(tp_prev, NULL),
+ tcf_proto_put(tp_prev, true, NULL),
(*p_index)++) {
if (*p_index < index_start)
continue;
@@ -2330,9 +2349,8 @@ static bool tcf_chain_dump(struct tcf_chain *chain, struct Qdisc *q, u32 parent,
if (tcf_fill_node(net, skb, tp, block, q, parent, NULL,
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, NLM_F_MULTI,
- RTM_NEWTFILTER) <= 0)
+ RTM_NEWTFILTER, true) <= 0)
goto errout;
-
cb->args[1] = 1;
}
if (!tp->ops->walk)
@@ -2347,7 +2365,7 @@ static bool tcf_chain_dump(struct tcf_chain *chain, struct Qdisc *q, u32 parent,
arg.w.skip = cb->args[1] - 1;
arg.w.count = 0;
arg.w.cookie = cb->args[2];
- tp->ops->walk(tp, &arg.w);
+ tp->ops->walk(tp, &arg.w, true);
cb->args[2] = arg.w.cookie;
cb->args[1] = arg.w.count + 1;
if (arg.w.stop)
@@ -2356,7 +2374,7 @@ static bool tcf_chain_dump(struct tcf_chain *chain, struct Qdisc *q, u32 parent,
return true;
errout:
- tcf_proto_put(tp, NULL);
+ tcf_proto_put(tp, true, NULL);
return false;
}
@@ -2448,7 +2466,7 @@ static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
}
if (tcm->tcm_ifindex == TCM_IFINDEX_MAGIC_BLOCK)
- tcf_block_refcnt_put(block);
+ tcf_block_refcnt_put(block, true);
cb->args[0] = index;
out:
@@ -2569,7 +2587,7 @@ static int tc_chain_tmplt_add(struct tcf_chain *chain, struct net *net,
if (!tca[TCA_KIND])
return 0;
- ops = tcf_proto_lookup_ops(nla_data(tca[TCA_KIND]), extack);
+ ops = tcf_proto_lookup_ops(nla_data(tca[TCA_KIND]), true, extack);
if (IS_ERR(ops))
return PTR_ERR(ops);
if (!ops->tmplt_create || !ops->tmplt_destroy || !ops->tmplt_dump) {
@@ -2699,9 +2717,9 @@ replay:
break;
case RTM_DELCHAIN:
tfilter_notify_chain(net, skb, block, q, parent, n,
- chain, RTM_DELTFILTER);
+ chain, RTM_DELTFILTER, true);
/* Flush the chain first as the user requested chain removal. */
- tcf_chain_flush(chain);
+ tcf_chain_flush(chain, true);
/* In case the chain was successfully deleted, put a reference
* to the chain previously taken during addition.
*/
@@ -2722,7 +2740,7 @@ replay:
errout:
tcf_chain_put(chain);
errout_block:
- tcf_block_release(q, block);
+ tcf_block_release(q, block, true);
if (err == -EAGAIN)
/* Replay the request. */
goto replay;
@@ -2829,7 +2847,7 @@ static int tc_dump_chain(struct sk_buff *skb, struct netlink_callback *cb)
}
if (tcm->tcm_ifindex == TCM_IFINDEX_MAGIC_BLOCK)
- tcf_block_refcnt_put(block);
+ tcf_block_refcnt_put(block, true);
cb->args[0] = index;
out:
diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index eaf9c02fe792..2383f449d2bc 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -107,7 +107,8 @@ static void basic_delete_filter_work(struct work_struct *work)
rtnl_unlock();
}
-static void basic_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
+static void basic_destroy(struct tcf_proto *tp, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct basic_head *head = rtnl_dereference(tp->root);
struct basic_filter *f, *n;
@@ -126,7 +127,7 @@ static void basic_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
}
static int basic_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct basic_head *head = rtnl_dereference(tp->root);
struct basic_filter *f = arg;
@@ -173,7 +174,7 @@ static int basic_set_parms(struct net *net, struct tcf_proto *tp,
static int basic_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,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
int err;
struct basic_head *head = rtnl_dereference(tp->root);
@@ -247,7 +248,8 @@ errout:
return err;
}
-static void basic_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void basic_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct basic_head *head = rtnl_dereference(tp->root);
struct basic_filter *f;
@@ -274,7 +276,7 @@ static void basic_bind_class(void *fh, u32 classid, unsigned long cl)
}
static int basic_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *t)
+ struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
struct tc_basic_pcnt gpf = {};
struct basic_filter *f = fh;
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index 656b3423ad35..062350c6621c 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -298,7 +298,7 @@ static void __cls_bpf_delete(struct tcf_proto *tp, struct cls_bpf_prog *prog,
}
static int cls_bpf_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
@@ -307,7 +307,7 @@ static int cls_bpf_delete(struct tcf_proto *tp, void *arg, bool *last,
return 0;
}
-static void cls_bpf_destroy(struct tcf_proto *tp,
+static void cls_bpf_destroy(struct tcf_proto *tp, bool rtnl_held,
struct netlink_ext_ack *extack)
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
@@ -456,7 +456,8 @@ static int cls_bpf_set_parms(struct net *net, struct tcf_proto *tp,
static int cls_bpf_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, struct netlink_ext_ack *extack)
+ void **arg, bool ovr, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
struct cls_bpf_prog *oldprog = *arg;
@@ -576,7 +577,7 @@ static int cls_bpf_dump_ebpf_info(const struct cls_bpf_prog *prog,
}
static int cls_bpf_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *tm)
+ struct sk_buff *skb, struct tcmsg *tm, bool rtnl_held)
{
struct cls_bpf_prog *prog = fh;
struct nlattr *nest;
@@ -636,7 +637,8 @@ static void cls_bpf_bind_class(void *fh, u32 classid, unsigned long cl)
prog->res.class = cl;
}
-static void cls_bpf_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void cls_bpf_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
struct cls_bpf_prog *prog;
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index 663ee1c6d606..1cef3b416094 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -78,7 +78,7 @@ 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,
+ void **arg, bool ovr, bool rtnl_held,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[TCA_CGROUP_MAX + 1];
@@ -130,7 +130,7 @@ errout:
return err;
}
-static void cls_cgroup_destroy(struct tcf_proto *tp,
+static void cls_cgroup_destroy(struct tcf_proto *tp, bool rtnl_held,
struct netlink_ext_ack *extack)
{
struct cls_cgroup_head *head = rtnl_dereference(tp->root);
@@ -145,12 +145,13 @@ static void cls_cgroup_destroy(struct tcf_proto *tp,
}
static int cls_cgroup_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
return -EOPNOTSUPP;
}
-static void cls_cgroup_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void cls_cgroup_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct cls_cgroup_head *head = rtnl_dereference(tp->root);
@@ -166,7 +167,7 @@ skip:
}
static int cls_cgroup_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *t)
+ struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
struct cls_cgroup_head *head = rtnl_dereference(tp->root);
struct nlattr *nest;
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 39a6407d4832..204e2edae8d5 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -391,7 +391,8 @@ static void flow_destroy_filter_work(struct work_struct *work)
static int flow_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, struct netlink_ext_ack *extack)
+ void **arg, bool ovr, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct flow_head *head = rtnl_dereference(tp->root);
struct flow_filter *fold, *fnew;
@@ -566,7 +567,7 @@ err1:
}
static int flow_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct flow_head *head = rtnl_dereference(tp->root);
struct flow_filter *f = arg;
@@ -590,7 +591,8 @@ static int flow_init(struct tcf_proto *tp)
return 0;
}
-static void flow_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
+static void flow_destroy(struct tcf_proto *tp, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct flow_head *head = rtnl_dereference(tp->root);
struct flow_filter *f, *next;
@@ -617,7 +619,7 @@ static void *flow_get(struct tcf_proto *tp, u32 handle)
}
static int flow_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *t)
+ struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
struct flow_filter *f = fh;
struct nlattr *nest;
@@ -677,7 +679,8 @@ nla_put_failure:
return -1;
}
-static void flow_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void flow_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct flow_head *head = rtnl_dereference(tp->root);
struct flow_filter *f;
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 5e3f74ab68ca..32fa3e20adc5 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -465,7 +465,8 @@ static void fl_destroy_sleepable(struct work_struct *work)
module_put(THIS_MODULE);
}
-static void fl_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
+static void fl_destroy(struct tcf_proto *tp, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct cls_fl_head *head = rtnl_dereference(tp->root);
struct fl_flow_mask *mask, *next_mask;
@@ -1300,7 +1301,8 @@ static int fl_set_parms(struct net *net, struct tcf_proto *tp,
static int fl_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, struct netlink_ext_ack *extack)
+ void **arg, bool ovr, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct cls_fl_head *head = rtnl_dereference(tp->root);
struct cls_fl_filter *fold = *arg;
@@ -1437,7 +1439,7 @@ errout_mask_alloc:
}
static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct cls_fl_head *head = rtnl_dereference(tp->root);
struct cls_fl_filter *f = arg;
@@ -1449,7 +1451,8 @@ static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
return 0;
}
-static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct cls_fl_head *head = rtnl_dereference(tp->root);
struct cls_fl_filter *f;
@@ -2044,7 +2047,7 @@ nla_put_failure:
}
static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *t)
+ struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
struct cls_fl_filter *f = fh;
struct nlattr *nest;
diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c
index c8173ebb69f2..317151bae73b 100644
--- a/net/sched/cls_fw.c
+++ b/net/sched/cls_fw.c
@@ -139,7 +139,8 @@ static void fw_delete_filter_work(struct work_struct *work)
rtnl_unlock();
}
-static void fw_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
+static void fw_destroy(struct tcf_proto *tp, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct fw_head *head = rtnl_dereference(tp->root);
struct fw_filter *f;
@@ -163,7 +164,7 @@ static void fw_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
}
static int fw_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct fw_head *head = rtnl_dereference(tp->root);
struct fw_filter *f = arg;
@@ -250,7 +251,8 @@ static int fw_set_parms(struct net *net, struct tcf_proto *tp,
static int fw_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, struct netlink_ext_ack *extack)
+ bool ovr, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct fw_head *head = rtnl_dereference(tp->root);
struct fw_filter *f = *arg;
@@ -354,7 +356,8 @@ errout:
return err;
}
-static void fw_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void fw_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct fw_head *head = rtnl_dereference(tp->root);
int h;
@@ -384,7 +387,7 @@ static void fw_walk(struct tcf_proto *tp, struct tcf_walker *arg)
}
static int fw_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *t)
+ struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
struct fw_head *head = rtnl_dereference(tp->root);
struct fw_filter *f = fh;
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index 8848a147c4bf..a37137430e61 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -109,7 +109,8 @@ static int mall_replace_hw_filter(struct tcf_proto *tp,
return 0;
}
-static void mall_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
+static void mall_destroy(struct tcf_proto *tp, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct cls_mall_head *head = rtnl_dereference(tp->root);
@@ -160,7 +161,8 @@ static int mall_set_parms(struct net *net, struct tcf_proto *tp,
static int mall_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, struct netlink_ext_ack *extack)
+ void **arg, bool ovr, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct cls_mall_head *head = rtnl_dereference(tp->root);
struct nlattr *tb[TCA_MATCHALL_MAX + 1];
@@ -233,12 +235,13 @@ err_exts_init:
}
static int mall_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
return -EOPNOTSUPP;
}
-static void mall_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void mall_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct cls_mall_head *head = rtnl_dereference(tp->root);
@@ -280,7 +283,7 @@ static int mall_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb,
}
static int mall_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *t)
+ struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
struct tc_matchall_pcnt gpf = {};
struct cls_mall_head *head = fh;
diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index 44b26038c4c4..e590c3a2999d 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -276,7 +276,8 @@ static void route4_queue_work(struct route4_filter *f)
tcf_queue_work(&f->rwork, route4_delete_filter_work);
}
-static void route4_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
+static void route4_destroy(struct tcf_proto *tp, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct route4_head *head = rtnl_dereference(tp->root);
int h1, h2;
@@ -312,7 +313,7 @@ static void route4_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
}
static int route4_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct route4_head *head = rtnl_dereference(tp->root);
struct route4_filter *f = arg;
@@ -468,7 +469,7 @@ static int route4_set_parms(struct net *net, struct tcf_proto *tp,
static int route4_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,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct route4_head *head = rtnl_dereference(tp->root);
struct route4_filter __rcu **fp;
@@ -560,7 +561,8 @@ errout:
return err;
}
-static void route4_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void route4_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct route4_head *head = rtnl_dereference(tp->root);
unsigned int h, h1;
@@ -597,7 +599,7 @@ static void route4_walk(struct tcf_proto *tp, struct tcf_walker *arg)
}
static int route4_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *t)
+ struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
struct route4_filter *f = fh;
struct nlattr *nest;
diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h
index 9dd9530e6a52..4d3836178fa5 100644
--- a/net/sched/cls_rsvp.h
+++ b/net/sched/cls_rsvp.h
@@ -312,7 +312,8 @@ static void rsvp_delete_filter(struct tcf_proto *tp, struct rsvp_filter *f)
__rsvp_delete_filter(f);
}
-static void rsvp_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
+static void rsvp_destroy(struct tcf_proto *tp, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct rsvp_head *data = rtnl_dereference(tp->root);
int h1, h2;
@@ -341,7 +342,7 @@ static void rsvp_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
}
static int rsvp_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct rsvp_head *head = rtnl_dereference(tp->root);
struct rsvp_filter *nfp, *f = arg;
@@ -477,7 +478,8 @@ static int rsvp_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, struct netlink_ext_ack *extack)
+ void **arg, bool ovr, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct rsvp_head *data = rtnl_dereference(tp->root);
struct rsvp_filter *f, *nfp;
@@ -655,7 +657,8 @@ errout2:
return err;
}
-static void rsvp_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void rsvp_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct rsvp_head *head = rtnl_dereference(tp->root);
unsigned int h, h1;
@@ -689,7 +692,7 @@ static void rsvp_walk(struct tcf_proto *tp, struct tcf_walker *arg)
}
static int rsvp_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *t)
+ struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
struct rsvp_filter *f = fh;
struct rsvp_session *s;
diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c
index b7dc667b6ec0..14d6b4058045 100644
--- a/net/sched/cls_tcindex.c
+++ b/net/sched/cls_tcindex.c
@@ -173,7 +173,7 @@ static void tcindex_destroy_fexts_work(struct work_struct *work)
}
static int tcindex_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct tcindex_data *p = rtnl_dereference(tp->root);
struct tcindex_filter_result *r = arg;
@@ -226,7 +226,7 @@ static int tcindex_destroy_element(struct tcf_proto *tp,
{
bool last;
- return tcindex_delete(tp, arg, &last, NULL);
+ return tcindex_delete(tp, arg, &last, false, NULL);
}
static void __tcindex_destroy(struct rcu_head *head)
@@ -499,7 +499,7 @@ static int
tcindex_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,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct nlattr *opt = tca[TCA_OPTIONS];
struct nlattr *tb[TCA_TCINDEX_MAX + 1];
@@ -522,7 +522,8 @@ tcindex_change(struct net *net, struct sk_buff *in_skb,
tca[TCA_RATE], ovr, extack);
}
-static void tcindex_walk(struct tcf_proto *tp, struct tcf_walker *walker)
+static void tcindex_walk(struct tcf_proto *tp, struct tcf_walker *walker,
+ bool rtnl_held)
{
struct tcindex_data *p = rtnl_dereference(tp->root);
struct tcindex_filter *f, *next;
@@ -558,7 +559,7 @@ static void tcindex_walk(struct tcf_proto *tp, struct tcf_walker *walker)
}
}
-static void tcindex_destroy(struct tcf_proto *tp,
+static void tcindex_destroy(struct tcf_proto *tp, bool rtnl_held,
struct netlink_ext_ack *extack)
{
struct tcindex_data *p = rtnl_dereference(tp->root);
@@ -568,14 +569,14 @@ static void tcindex_destroy(struct tcf_proto *tp,
walker.count = 0;
walker.skip = 0;
walker.fn = tcindex_destroy_element;
- tcindex_walk(tp, &walker);
+ tcindex_walk(tp, &walker, true);
call_rcu(&p->rcu, __tcindex_destroy);
}
static int tcindex_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *t)
+ struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
struct tcindex_data *p = rtnl_dereference(tp->root);
struct tcindex_filter_result *r = fh;
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index e891f30d42e9..27d29c04dcc9 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -629,7 +629,8 @@ static int u32_destroy_hnode(struct tcf_proto *tp, struct tc_u_hnode *ht,
return -ENOENT;
}
-static void u32_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
+static void u32_destroy(struct tcf_proto *tp, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct tc_u_common *tp_c = tp->data;
struct tc_u_hnode *root_ht = rtnl_dereference(tp->root);
@@ -663,7 +664,7 @@ static void u32_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
}
static int u32_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct tc_u_hnode *ht = arg;
struct tc_u_common *tp_c = tp->data;
@@ -858,7 +859,7 @@ static struct tc_u_knode *u32_init_knode(struct tcf_proto *tp,
static int u32_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,
+ struct nlattr **tca, void **arg, bool ovr, bool rtnl_held,
struct netlink_ext_ack *extack)
{
struct tc_u_common *tp_c = tp->data;
@@ -1123,7 +1124,8 @@ erridr:
return err;
}
-static void u32_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void u32_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct tc_u_common *tp_c = tp->data;
struct tc_u_hnode *ht;
@@ -1281,7 +1283,7 @@ static void u32_bind_class(void *fh, u32 classid, unsigned long cl)
}
static int u32_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *t)
+ struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
struct tc_u_knode *n = fh;
struct tc_u_hnode *ht_up, *ht_down;
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 9a530cad2759..2283924fb56d 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1914,14 +1914,14 @@ static void tc_bind_tclass(struct Qdisc *q, u32 portid, u32 clid,
chain = tcf_get_next_chain(block, chain)) {
struct tcf_proto *tp;
- for (tp = tcf_get_next_proto(chain, NULL);
- tp; tp = tcf_get_next_proto(chain, tp)) {
+ for (tp = tcf_get_next_proto(chain, NULL, true);
+ tp; tp = tcf_get_next_proto(chain, tp, true)) {
struct tcf_bind_args arg = {};
arg.w.fn = tcf_node_bind;
arg.classid = clid;
arg.cl = new_cl;
- tp->ops->walk(tp, &arg.w);
+ tp->ops->walk(tp, &arg.w, true);
}
}
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.