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-rw-r--r--net/sched/act_api.c72
-rw-r--r--net/sched/cls_api.c8
-rw-r--r--net/sched/cls_basic.c33
-rw-r--r--net/sched/cls_bpf.c30
-rw-r--r--net/sched/cls_flower.c34
-rw-r--r--net/sched/cls_u32.c47
6 files changed, 95 insertions, 129 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 52622a3d2517..eba6682727dd 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -78,7 +78,7 @@ static void free_tcf(struct tc_action *p)
static void tcf_idr_remove(struct tcf_idrinfo *idrinfo, struct tc_action *p)
{
spin_lock_bh(&idrinfo->lock);
- idr_remove_ext(&idrinfo->action_idr, p->tcfa_index);
+ idr_remove(&idrinfo->action_idr, p->tcfa_index);
spin_unlock_bh(&idrinfo->lock);
gen_kill_estimator(&p->tcfa_rate_est);
free_tcf(p);
@@ -124,7 +124,7 @@ static int tcf_dump_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb,
s_i = cb->args[0];
- idr_for_each_entry_ext(idr, p, id) {
+ idr_for_each_entry_ul(idr, p, id) {
index++;
if (index < s_i)
continue;
@@ -181,7 +181,7 @@ static int tcf_del_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb,
if (nla_put_string(skb, TCA_KIND, ops->kind))
goto nla_put_failure;
- idr_for_each_entry_ext(idr, p, id) {
+ idr_for_each_entry_ul(idr, p, id) {
ret = __tcf_idr_release(p, false, true);
if (ret == ACT_P_DELETED) {
module_put(ops->owner);
@@ -222,7 +222,7 @@ static struct tc_action *tcf_idr_lookup(u32 index, struct tcf_idrinfo *idrinfo)
struct tc_action *p = NULL;
spin_lock_bh(&idrinfo->lock);
- p = idr_find_ext(&idrinfo->action_idr, index);
+ p = idr_find(&idrinfo->action_idr, index);
spin_unlock_bh(&idrinfo->lock);
return p;
@@ -274,7 +274,6 @@ int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est,
struct tcf_idrinfo *idrinfo = tn->idrinfo;
struct idr *idr = &idrinfo->action_idr;
int err = -ENOMEM;
- unsigned long idr_index;
if (unlikely(!p))
return -ENOMEM;
@@ -284,45 +283,28 @@ int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est,
if (cpustats) {
p->cpu_bstats = netdev_alloc_pcpu_stats(struct gnet_stats_basic_cpu);
- if (!p->cpu_bstats) {
-err1:
- kfree(p);
- return err;
- }
- p->cpu_qstats = alloc_percpu(struct gnet_stats_queue);
- if (!p->cpu_qstats) {
-err2:
- free_percpu(p->cpu_bstats);
+ if (!p->cpu_bstats)
goto err1;
- }
+ p->cpu_qstats = alloc_percpu(struct gnet_stats_queue);
+ if (!p->cpu_qstats)
+ goto err2;
}
spin_lock_init(&p->tcfa_lock);
+ idr_preload(GFP_KERNEL);
+ spin_lock_bh(&idrinfo->lock);
/* user doesn't specify an index */
if (!index) {
- idr_preload(GFP_KERNEL);
- spin_lock_bh(&idrinfo->lock);
- err = idr_alloc_ext(idr, NULL, &idr_index, 1, 0,
- GFP_ATOMIC);
- spin_unlock_bh(&idrinfo->lock);
- idr_preload_end();
- if (err) {
-err3:
- free_percpu(p->cpu_qstats);
- goto err2;
- }
- p->tcfa_index = idr_index;
+ index = 1;
+ err = idr_alloc_u32(idr, NULL, &index, UINT_MAX, GFP_ATOMIC);
} else {
- idr_preload(GFP_KERNEL);
- spin_lock_bh(&idrinfo->lock);
- err = idr_alloc_ext(idr, NULL, NULL, index, index + 1,
- GFP_ATOMIC);
- spin_unlock_bh(&idrinfo->lock);
- idr_preload_end();
- if (err)
- goto err3;
- p->tcfa_index = index;
+ err = idr_alloc_u32(idr, NULL, &index, index, GFP_ATOMIC);
}
+ spin_unlock_bh(&idrinfo->lock);
+ idr_preload_end();
+ if (err)
+ goto err3;
+ p->tcfa_index = index;
p->tcfa_tm.install = jiffies;
p->tcfa_tm.lastuse = jiffies;
p->tcfa_tm.firstuse = 0;
@@ -330,9 +312,8 @@ err3:
err = gen_new_estimator(&p->tcfa_bstats, p->cpu_bstats,
&p->tcfa_rate_est,
&p->tcfa_lock, NULL, est);
- if (err) {
- goto err3;
- }
+ if (err)
+ goto err4;
}
p->idrinfo = idrinfo;
@@ -340,6 +321,15 @@ err3:
INIT_LIST_HEAD(&p->list);
*a = p;
return 0;
+err4:
+ idr_remove(idr, index);
+err3:
+ free_percpu(p->cpu_qstats);
+err2:
+ free_percpu(p->cpu_bstats);
+err1:
+ kfree(p);
+ return err;
}
EXPORT_SYMBOL(tcf_idr_create);
@@ -348,7 +338,7 @@ void tcf_idr_insert(struct tc_action_net *tn, struct tc_action *a)
struct tcf_idrinfo *idrinfo = tn->idrinfo;
spin_lock_bh(&idrinfo->lock);
- idr_replace_ext(&idrinfo->action_idr, a, a->tcfa_index);
+ idr_replace(&idrinfo->action_idr, a, a->tcfa_index);
spin_unlock_bh(&idrinfo->lock);
}
EXPORT_SYMBOL(tcf_idr_insert);
@@ -361,7 +351,7 @@ void tcf_idrinfo_destroy(const struct tc_action_ops *ops,
int ret;
unsigned long id = 1;
- idr_for_each_entry_ext(idr, p, id) {
+ idr_for_each_entry_ul(idr, p, id) {
ret = __tcf_idr_release(p, false, true);
if (ret == ACT_P_DELETED)
module_put(ops->owner);
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index bcb4ccb5f894..2bc1bc23d42e 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -381,8 +381,8 @@ static int tcf_block_insert(struct tcf_block *block, struct net *net,
struct tcf_net *tn = net_generic(net, tcf_net_id);
int err;
- err = idr_alloc_ext(&tn->idr, block, NULL, block_index,
- block_index + 1, GFP_KERNEL);
+ err = idr_alloc_u32(&tn->idr, block, &block_index, block_index,
+ GFP_KERNEL);
if (err)
return err;
block->index = block_index;
@@ -393,7 +393,7 @@ static void tcf_block_remove(struct tcf_block *block, struct net *net)
{
struct tcf_net *tn = net_generic(net, tcf_net_id);
- idr_remove_ext(&tn->idr, block->index);
+ idr_remove(&tn->idr, block->index);
}
static struct tcf_block *tcf_block_create(struct net *net, struct Qdisc *q,
@@ -434,7 +434,7 @@ static struct tcf_block *tcf_block_lookup(struct net *net, u32 block_index)
{
struct tcf_net *tn = net_generic(net, tcf_net_id);
- return idr_find_ext(&tn->idr, block_index);
+ return idr_find(&tn->idr, block_index);
}
static struct tcf_chain *tcf_block_chain_zero(struct tcf_block *block)
diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index d333f5c5101d..6b7ab3512f5b 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -120,7 +120,7 @@ static void basic_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
list_for_each_entry_safe(f, n, &head->flist, link) {
list_del_rcu(&f->link);
tcf_unbind_filter(tp, &f->res);
- idr_remove_ext(&head->handle_idr, f->handle);
+ idr_remove(&head->handle_idr, f->handle);
if (tcf_exts_get_net(&f->exts))
call_rcu(&f->rcu, basic_delete_filter);
else
@@ -138,7 +138,7 @@ static int basic_delete(struct tcf_proto *tp, void *arg, bool *last,
list_del_rcu(&f->link);
tcf_unbind_filter(tp, &f->res);
- idr_remove_ext(&head->handle_idr, f->handle);
+ idr_remove(&head->handle_idr, f->handle);
tcf_exts_get_net(&f->exts);
call_rcu(&f->rcu, basic_delete_filter);
*last = list_empty(&head->flist);
@@ -185,7 +185,6 @@ static int basic_change(struct net *net, struct sk_buff *in_skb,
struct nlattr *tb[TCA_BASIC_MAX + 1];
struct basic_filter *fold = (struct basic_filter *) *arg;
struct basic_filter *fnew;
- unsigned long idr_index;
if (tca[TCA_OPTIONS] == NULL)
return -EINVAL;
@@ -208,34 +207,30 @@ static int basic_change(struct net *net, struct sk_buff *in_skb,
if (err < 0)
goto errout;
- if (handle) {
- fnew->handle = handle;
- if (!fold) {
- err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index,
- handle, handle + 1, GFP_KERNEL);
- if (err)
- goto errout;
- }
- } else {
- err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index,
- 1, 0x7FFFFFFF, GFP_KERNEL);
- if (err)
- goto errout;
- fnew->handle = idr_index;
+ if (!handle) {
+ handle = 1;
+ err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
+ INT_MAX, GFP_KERNEL);
+ } else if (!fold) {
+ err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
+ handle, GFP_KERNEL);
}
+ if (err)
+ goto errout;
+ fnew->handle = handle;
err = basic_set_parms(net, tp, fnew, base, tb, tca[TCA_RATE], ovr,
extack);
if (err < 0) {
if (!fold)
- idr_remove_ext(&head->handle_idr, fnew->handle);
+ idr_remove(&head->handle_idr, fnew->handle);
goto errout;
}
*arg = fnew;
if (fold) {
- idr_replace_ext(&head->handle_idr, fnew, fnew->handle);
+ idr_replace(&head->handle_idr, fnew, fnew->handle);
list_replace_rcu(&fold->link, &fnew->link);
tcf_unbind_filter(tp, &fold->res);
tcf_exts_get_net(&fold->exts);
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index 8e5326bc6440..b07c1fa8bc0d 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -295,7 +295,7 @@ static void __cls_bpf_delete(struct tcf_proto *tp, struct cls_bpf_prog *prog,
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
- idr_remove_ext(&head->handle_idr, prog->handle);
+ idr_remove(&head->handle_idr, prog->handle);
cls_bpf_stop_offload(tp, prog, extack);
list_del_rcu(&prog->link);
tcf_unbind_filter(tp, &prog->res);
@@ -471,7 +471,6 @@ static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
struct cls_bpf_prog *oldprog = *arg;
struct nlattr *tb[TCA_BPF_MAX + 1];
struct cls_bpf_prog *prog;
- unsigned long idr_index;
int ret;
if (tca[TCA_OPTIONS] == NULL)
@@ -498,21 +497,18 @@ static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
}
if (handle == 0) {
- ret = idr_alloc_ext(&head->handle_idr, prog, &idr_index,
- 1, 0x7FFFFFFF, GFP_KERNEL);
- if (ret)
- goto errout;
- prog->handle = idr_index;
- } else {
- if (!oldprog) {
- ret = idr_alloc_ext(&head->handle_idr, prog, &idr_index,
- handle, handle + 1, GFP_KERNEL);
- if (ret)
- goto errout;
- }
- prog->handle = handle;
+ handle = 1;
+ ret = idr_alloc_u32(&head->handle_idr, prog, &handle,
+ INT_MAX, GFP_KERNEL);
+ } else if (!oldprog) {
+ ret = idr_alloc_u32(&head->handle_idr, prog, &handle,
+ handle, GFP_KERNEL);
}
+ if (ret)
+ goto errout;
+ prog->handle = handle;
+
ret = cls_bpf_set_parms(net, tp, prog, base, tb, tca[TCA_RATE], ovr,
extack);
if (ret < 0)
@@ -526,7 +522,7 @@ static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
prog->gen_flags |= TCA_CLS_FLAGS_NOT_IN_HW;
if (oldprog) {
- idr_replace_ext(&head->handle_idr, prog, handle);
+ idr_replace(&head->handle_idr, prog, handle);
list_replace_rcu(&oldprog->link, &prog->link);
tcf_unbind_filter(tp, &oldprog->res);
tcf_exts_get_net(&oldprog->exts);
@@ -542,7 +538,7 @@ errout_parms:
cls_bpf_free_parms(prog);
errout_idr:
if (!oldprog)
- idr_remove_ext(&head->handle_idr, prog->handle);
+ idr_remove(&head->handle_idr, prog->handle);
errout:
tcf_exts_destroy(&prog->exts);
kfree(prog);
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index dc9acaafc0a8..7d0ce2c40f93 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -288,7 +288,7 @@ static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f,
{
struct cls_fl_head *head = rtnl_dereference(tp->root);
- idr_remove_ext(&head->handle_idr, f->handle);
+ idr_remove(&head->handle_idr, f->handle);
list_del_rcu(&f->list);
if (!tc_skip_hw(f->flags))
fl_hw_destroy_filter(tp, f, extack);
@@ -334,7 +334,7 @@ static void *fl_get(struct tcf_proto *tp, u32 handle)
{
struct cls_fl_head *head = rtnl_dereference(tp->root);
- return idr_find_ext(&head->handle_idr, handle);
+ return idr_find(&head->handle_idr, handle);
}
static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
@@ -865,7 +865,6 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
struct cls_fl_filter *fnew;
struct nlattr **tb;
struct fl_flow_mask mask = {};
- unsigned long idr_index;
int err;
if (!tca[TCA_OPTIONS])
@@ -896,21 +895,17 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
goto errout;
if (!handle) {
- err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index,
- 1, 0x80000000, GFP_KERNEL);
- if (err)
- goto errout;
- fnew->handle = idr_index;
- }
-
- /* user specifies a handle and it doesn't exist */
- if (handle && !fold) {
- err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index,
- handle, handle + 1, GFP_KERNEL);
- if (err)
- goto errout;
- fnew->handle = idr_index;
+ handle = 1;
+ err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
+ INT_MAX, GFP_KERNEL);
+ } else if (!fold) {
+ /* user specifies a handle and it doesn't exist */
+ err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
+ handle, GFP_KERNEL);
}
+ if (err)
+ goto errout;
+ fnew->handle = handle;
if (tb[TCA_FLOWER_FLAGS]) {
fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
@@ -966,8 +961,7 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
*arg = fnew;
if (fold) {
- fnew->handle = handle;
- idr_replace_ext(&head->handle_idr, fnew, fnew->handle);
+ idr_replace(&head->handle_idr, fnew, fnew->handle);
list_replace_rcu(&fold->list, &fnew->list);
tcf_unbind_filter(tp, &fold->res);
tcf_exts_get_net(&fold->exts);
@@ -981,7 +975,7 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
errout_idr:
if (fnew->handle)
- idr_remove_ext(&head->handle_idr, fnew->handle);
+ idr_remove(&head->handle_idr, fnew->handle);
errout:
tcf_exts_destroy(&fnew->exts);
kfree(fnew);
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index c75e68e839c7..6c7601a530e3 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -316,19 +316,13 @@ static void *u32_get(struct tcf_proto *tp, u32 handle)
return u32_lookup_key(ht, handle);
}
+/* Protected by rtnl lock */
static u32 gen_new_htid(struct tc_u_common *tp_c, struct tc_u_hnode *ptr)
{
- unsigned long idr_index;
- int err;
-
- /* This is only used inside rtnl lock it is safe to increment
- * without read _copy_ update semantics
- */
- err = idr_alloc_ext(&tp_c->handle_idr, ptr, &idr_index,
- 1, 0x7FF, GFP_KERNEL);
- if (err)
+ int id = idr_alloc_cyclic(&tp_c->handle_idr, ptr, 1, 0x7FF, GFP_KERNEL);
+ if (id < 0)
return 0;
- return (u32)(idr_index | 0x800) << 20;
+ return (id | 0x800U) << 20;
}
static struct hlist_head *tc_u_common_hash;
@@ -598,7 +592,7 @@ static void u32_clear_hnode(struct tcf_proto *tp, struct tc_u_hnode *ht,
rtnl_dereference(n->next));
tcf_unbind_filter(tp, &n->res);
u32_remove_hw_knode(tp, n, extack);
- idr_remove_ext(&ht->handle_idr, n->handle);
+ idr_remove(&ht->handle_idr, n->handle);
if (tcf_exts_get_net(&n->exts))
call_rcu(&n->rcu, u32_delete_key_freepf_rcu);
else
@@ -625,7 +619,7 @@ static int u32_destroy_hnode(struct tcf_proto *tp, struct tc_u_hnode *ht,
if (phn == ht) {
u32_clear_hw_hnode(tp, ht, extack);
idr_destroy(&ht->handle_idr);
- idr_remove_ext(&tp_c->handle_idr, ht->handle);
+ idr_remove(&tp_c->handle_idr, ht->handle);
RCU_INIT_POINTER(*hn, ht->next);
kfree_rcu(ht, rcu);
return 0;
@@ -747,19 +741,17 @@ ret:
static u32 gen_new_kid(struct tc_u_hnode *ht, u32 htid)
{
- unsigned long idr_index;
- u32 start = htid | 0x800;
+ u32 index = htid | 0x800;
u32 max = htid | 0xFFF;
- u32 min = htid;
- if (idr_alloc_ext(&ht->handle_idr, NULL, &idr_index,
- start, max + 1, GFP_KERNEL)) {
- if (idr_alloc_ext(&ht->handle_idr, NULL, &idr_index,
- min + 1, max + 1, GFP_KERNEL))
- return max;
+ if (idr_alloc_u32(&ht->handle_idr, NULL, &index, max, GFP_KERNEL)) {
+ index = htid + 1;
+ if (idr_alloc_u32(&ht->handle_idr, NULL, &index, max,
+ GFP_KERNEL))
+ index = max;
}
- return (u32)idr_index;
+ return index;
}
static const struct nla_policy u32_policy[TCA_U32_MAX + 1] = {
@@ -849,7 +841,7 @@ static void u32_replace_knode(struct tcf_proto *tp, struct tc_u_common *tp_c,
if (pins->handle == n->handle)
break;
- idr_replace_ext(&ht->handle_idr, n, n->handle);
+ idr_replace(&ht->handle_idr, n, n->handle);
RCU_INIT_POINTER(n->next, pins->next);
rcu_assign_pointer(*ins, n);
}
@@ -1011,8 +1003,8 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
return -ENOMEM;
}
} else {
- err = idr_alloc_ext(&tp_c->handle_idr, ht, NULL,
- handle, handle + 1, GFP_KERNEL);
+ err = idr_alloc_u32(&tp_c->handle_idr, ht, &handle,
+ handle, GFP_KERNEL);
if (err) {
kfree(ht);
return err;
@@ -1028,7 +1020,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
err = u32_replace_hw_hnode(tp, ht, flags, extack);
if (err) {
- idr_remove_ext(&tp_c->handle_idr, handle);
+ idr_remove(&tp_c->handle_idr, handle);
kfree(ht);
return err;
}
@@ -1068,8 +1060,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
return -EINVAL;
}
handle = htid | TC_U32_NODE(handle);
- err = idr_alloc_ext(&ht->handle_idr, NULL, NULL,
- handle, handle + 1,
+ err = idr_alloc_u32(&ht->handle_idr, NULL, &handle, handle,
GFP_KERNEL);
if (err)
return err;
@@ -1164,7 +1155,7 @@ errfree:
#endif
kfree(n);
erridr:
- idr_remove_ext(&ht->handle_idr, handle);
+ idr_remove(&ht->handle_idr, handle);
return err;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 17:59:15 +0000