diff options
Diffstat (limited to 'debian/patches-rt/skbufhead-raw-lock.patch')
| -rw-r--r-- | debian/patches-rt/skbufhead-raw-lock.patch | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/debian/patches-rt/skbufhead-raw-lock.patch b/debian/patches-rt/skbufhead-raw-lock.patch index 3cf53c4c7..9d1285602 100644 --- a/debian/patches-rt/skbufhead-raw-lock.patch +++ b/debian/patches-rt/skbufhead-raw-lock.patch @@ -1,7 +1,7 @@ From: Thomas Gleixner <tglx@linutronix.de> Date: Tue, 12 Jul 2011 15:38:34 +0200 Subject: net: Use skbufhead with raw lock -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.0/older/patches-5.0.7-rt5.tar.xz +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.0/older/patches-5.0.10-rt7.tar.xz Use the rps lock as rawlock so we can keep irq-off regions. It looks low latency. However we can't kfree() from this context therefore we defer this @@ -16,7 +16,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h -@@ -3010,6 +3010,7 @@ struct softnet_data { +@@ -3013,6 +3013,7 @@ struct softnet_data { unsigned int dropped; struct sk_buff_head input_pkt_queue; struct napi_struct backlog; @@ -66,7 +66,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> #endif } -@@ -5307,7 +5307,7 @@ static void flush_backlog(struct work_st +@@ -5323,7 +5323,7 @@ static void flush_backlog(struct work_st skb_queue_walk_safe(&sd->input_pkt_queue, skb, tmp) { if (skb->dev->reg_state == NETREG_UNREGISTERING) { __skb_unlink(skb, &sd->input_pkt_queue); @@ -75,7 +75,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> input_queue_head_incr(sd); } } -@@ -5317,11 +5317,14 @@ static void flush_backlog(struct work_st +@@ -5333,11 +5333,14 @@ static void flush_backlog(struct work_st skb_queue_walk_safe(&sd->process_queue, skb, tmp) { if (skb->dev->reg_state == NETREG_UNREGISTERING) { __skb_unlink(skb, &sd->process_queue); @@ -91,7 +91,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> } static void flush_all_backlogs(void) -@@ -5921,7 +5924,9 @@ static int process_backlog(struct napi_s +@@ -5937,7 +5940,9 @@ static int process_backlog(struct napi_s while (again) { struct sk_buff *skb; @@ -101,7 +101,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> rcu_read_lock(); __netif_receive_skb(skb); rcu_read_unlock(); -@@ -5929,9 +5934,9 @@ static int process_backlog(struct napi_s +@@ -5945,9 +5950,9 @@ static int process_backlog(struct napi_s if (++work >= quota) return work; @@ -112,7 +112,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> rps_lock(sd); if (skb_queue_empty(&sd->input_pkt_queue)) { /* -@@ -6396,13 +6401,21 @@ static __latent_entropy void net_rx_acti +@@ -6412,13 +6417,21 @@ static __latent_entropy void net_rx_acti unsigned long time_limit = jiffies + usecs_to_jiffies(netdev_budget_usecs); int budget = netdev_budget; @@ -134,7 +134,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> for (;;) { struct napi_struct *n; -@@ -9420,10 +9433,13 @@ static int dev_cpu_dead(unsigned int old +@@ -9436,10 +9449,13 @@ static int dev_cpu_dead(unsigned int old netif_rx_ni(skb); input_queue_head_incr(oldsd); } @@ -149,7 +149,7 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de> return 0; } -@@ -9732,8 +9748,9 @@ static int __init net_dev_init(void) +@@ -9748,8 +9764,9 @@ static int __init net_dev_init(void) INIT_WORK(flush, flush_backlog); |