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Diffstat (limited to 'net/core/drop_monitor.c')
-rw-r--r--net/core/drop_monitor.c68
1 files changed, 35 insertions, 33 deletions
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index b0f221d658be..8a7ce640f74d 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -37,7 +37,7 @@
#include <trace/events/napi.h>
#include <trace/events/devlink.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
#define TRACE_ON 1
#define TRACE_OFF 0
@@ -74,7 +74,7 @@ struct net_dm_hw_entries {
};
struct per_cpu_dm_data {
- spinlock_t lock; /* Protects 'skb', 'hw_entries' and
+ raw_spinlock_t lock; /* Protects 'skb', 'hw_entries' and
* 'send_timer'
*/
union {
@@ -109,7 +109,8 @@ static u32 net_dm_queue_len = 1000;
struct net_dm_alert_ops {
void (*kfree_skb_probe)(void *ignore, struct sk_buff *skb,
void *location,
- enum skb_drop_reason reason);
+ enum skb_drop_reason reason,
+ struct sock *rx_sk);
void (*napi_poll_probe)(void *ignore, struct napi_struct *napi,
int work, int budget);
void (*work_item_func)(struct work_struct *work);
@@ -168,9 +169,9 @@ static struct sk_buff *reset_per_cpu_data(struct per_cpu_dm_data *data)
err:
mod_timer(&data->send_timer, jiffies + HZ / 10);
out:
- spin_lock_irqsave(&data->lock, flags);
+ raw_spin_lock_irqsave(&data->lock, flags);
swap(data->skb, skb);
- spin_unlock_irqrestore(&data->lock, flags);
+ raw_spin_unlock_irqrestore(&data->lock, flags);
if (skb) {
struct nlmsghdr *nlh = (struct nlmsghdr *)skb->data;
@@ -225,7 +226,7 @@ static void trace_drop_common(struct sk_buff *skb, void *location)
local_irq_save(flags);
data = this_cpu_ptr(&dm_cpu_data);
- spin_lock(&data->lock);
+ raw_spin_lock(&data->lock);
dskb = data->skb;
if (!dskb)
@@ -259,12 +260,13 @@ static void trace_drop_common(struct sk_buff *skb, void *location)
}
out:
- spin_unlock_irqrestore(&data->lock, flags);
+ raw_spin_unlock_irqrestore(&data->lock, flags);
}
static void trace_kfree_skb_hit(void *ignore, struct sk_buff *skb,
void *location,
- enum skb_drop_reason reason)
+ enum skb_drop_reason reason,
+ struct sock *rx_sk)
{
trace_drop_common(skb, location);
}
@@ -314,9 +316,9 @@ net_dm_hw_reset_per_cpu_data(struct per_cpu_dm_data *hw_data)
mod_timer(&hw_data->send_timer, jiffies + HZ / 10);
}
- spin_lock_irqsave(&hw_data->lock, flags);
+ raw_spin_lock_irqsave(&hw_data->lock, flags);
swap(hw_data->hw_entries, hw_entries);
- spin_unlock_irqrestore(&hw_data->lock, flags);
+ raw_spin_unlock_irqrestore(&hw_data->lock, flags);
return hw_entries;
}
@@ -448,7 +450,7 @@ net_dm_hw_trap_summary_probe(void *ignore, const struct devlink *devlink,
return;
hw_data = this_cpu_ptr(&dm_hw_cpu_data);
- spin_lock_irqsave(&hw_data->lock, flags);
+ raw_spin_lock_irqsave(&hw_data->lock, flags);
hw_entries = hw_data->hw_entries;
if (!hw_entries)
@@ -477,7 +479,7 @@ net_dm_hw_trap_summary_probe(void *ignore, const struct devlink *devlink,
}
out:
- spin_unlock_irqrestore(&hw_data->lock, flags);
+ raw_spin_unlock_irqrestore(&hw_data->lock, flags);
}
static const struct net_dm_alert_ops net_dm_alert_summary_ops = {
@@ -491,7 +493,8 @@ static const struct net_dm_alert_ops net_dm_alert_summary_ops = {
static void net_dm_packet_trace_kfree_skb_hit(void *ignore,
struct sk_buff *skb,
void *location,
- enum skb_drop_reason reason)
+ enum skb_drop_reason reason,
+ struct sock *rx_sk)
{
ktime_t tstamp = ktime_get_real();
struct per_cpu_dm_data *data;
@@ -1085,7 +1088,7 @@ err_module_put:
struct per_cpu_dm_data *hw_data = &per_cpu(dm_hw_cpu_data, cpu);
struct sk_buff *skb;
- del_timer_sync(&hw_data->send_timer);
+ timer_delete_sync(&hw_data->send_timer);
cancel_work_sync(&hw_data->dm_alert_work);
while ((skb = __skb_dequeue(&hw_data->drop_queue))) {
struct devlink_trap_metadata *hw_metadata;
@@ -1119,7 +1122,7 @@ static void net_dm_hw_monitor_stop(struct netlink_ext_ack *extack)
struct per_cpu_dm_data *hw_data = &per_cpu(dm_hw_cpu_data, cpu);
struct sk_buff *skb;
- del_timer_sync(&hw_data->send_timer);
+ timer_delete_sync(&hw_data->send_timer);
cancel_work_sync(&hw_data->dm_alert_work);
while ((skb = __skb_dequeue(&hw_data->drop_queue))) {
struct devlink_trap_metadata *hw_metadata;
@@ -1180,7 +1183,7 @@ err_module_put:
struct per_cpu_dm_data *data = &per_cpu(dm_cpu_data, cpu);
struct sk_buff *skb;
- del_timer_sync(&data->send_timer);
+ timer_delete_sync(&data->send_timer);
cancel_work_sync(&data->dm_alert_work);
while ((skb = __skb_dequeue(&data->drop_queue)))
consume_skb(skb);
@@ -1208,7 +1211,7 @@ static void net_dm_trace_off_set(void)
struct per_cpu_dm_data *data = &per_cpu(dm_cpu_data, cpu);
struct sk_buff *skb;
- del_timer_sync(&data->send_timer);
+ timer_delete_sync(&data->send_timer);
cancel_work_sync(&data->dm_alert_work);
while ((skb = __skb_dequeue(&data->drop_queue)))
consume_skb(skb);
@@ -1673,7 +1676,7 @@ static struct notifier_block dropmon_net_notifier = {
static void __net_dm_cpu_data_init(struct per_cpu_dm_data *data)
{
- spin_lock_init(&data->lock);
+ raw_spin_lock_init(&data->lock);
skb_queue_head_init(&data->drop_queue);
u64_stats_init(&data->stats.syncp);
}
@@ -1731,30 +1734,30 @@ static int __init init_net_drop_monitor(void)
return -ENOSPC;
}
- rc = genl_register_family(&net_drop_monitor_family);
- if (rc) {
- pr_err("Could not create drop monitor netlink family\n");
- return rc;
+ for_each_possible_cpu(cpu) {
+ net_dm_cpu_data_init(cpu);
+ net_dm_hw_cpu_data_init(cpu);
}
- WARN_ON(net_drop_monitor_family.mcgrp_offset != NET_DM_GRP_ALERT);
rc = register_netdevice_notifier(&dropmon_net_notifier);
if (rc < 0) {
pr_crit("Failed to register netdevice notifier\n");
+ return rc;
+ }
+
+ rc = genl_register_family(&net_drop_monitor_family);
+ if (rc) {
+ pr_err("Could not create drop monitor netlink family\n");
goto out_unreg;
}
+ WARN_ON(net_drop_monitor_family.mcgrp_offset != NET_DM_GRP_ALERT);
rc = 0;
- for_each_possible_cpu(cpu) {
- net_dm_cpu_data_init(cpu);
- net_dm_hw_cpu_data_init(cpu);
- }
-
goto out;
out_unreg:
- genl_unregister_family(&net_drop_monitor_family);
+ WARN_ON(unregister_netdevice_notifier(&dropmon_net_notifier));
out:
return rc;
}
@@ -1763,19 +1766,18 @@ static void exit_net_drop_monitor(void)
{
int cpu;
- BUG_ON(unregister_netdevice_notifier(&dropmon_net_notifier));
-
/*
* Because of the module_get/put we do in the trace state change path
* we are guaranteed not to have any current users when we get here
*/
+ BUG_ON(genl_unregister_family(&net_drop_monitor_family));
+
+ BUG_ON(unregister_netdevice_notifier(&dropmon_net_notifier));
for_each_possible_cpu(cpu) {
net_dm_hw_cpu_data_fini(cpu);
net_dm_cpu_data_fini(cpu);
}
-
- BUG_ON(genl_unregister_family(&net_drop_monitor_family));
}
module_init(init_net_drop_monitor);
generated by cgit (git 2.34.1) at 2025-07-12 07:03:48 +0000