search for: skb_queue_purge

OK please try the following patch [PATCH] neighbour: fix a race in neigh_destroy() There is a race in neighbour code, because neigh_destroy() uses skb_queue_purge(&neigh->arp_queue) without holding neighbour lock, while other parts of the code assume neighbour rwlock is what protects arp_queue Convert all skb_queue_purge() calls to the __skb_queue_purge() variant Use __skb_queue_head_init() instead of skb_queue_head_init() to make clear we do not us...

...{ + unsigned int len = skb->len; + + sch->stats.backlog -= len; + kfree_skb(skb); + sch->q.qlen --; + return len; + } + + return 0; +} + +static void ooo_reset(struct Qdisc *sch) +{ + struct ooo_sched_data *q = (struct ooo_sched_data *)sch->data; + + del_timer(&q->timer); + skb_queue_purge(&q->qooo); + skb_queue_purge(&sch->q); + sch->flags &= ~TCQ_F_THROTTLED; +} + +static void ooo_destroy(struct Qdisc *sch) +{ + struct ooo_sched_data *q = (struct ooo_sched_data *)sch->data; + + del_timer(&q->timer); + skb_queue_purge(&q->qooo); + skb_queue_purg...

...PARM_DESC(rx_batched, "Number of packets batched in rx"); + /* Uncomment to enable debugging */ /* #define TUN_DEBUG 1 */ @@ -522,6 +526,7 @@ static void tun_queue_purge(struct tun_file *tfile) while ((skb = skb_array_consume(&tfile->tx_array)) != NULL) kfree_skb(skb); + skb_queue_purge(&tfile->sk.sk_write_queue); skb_queue_purge(&tfile->sk.sk_error_queue); } @@ -1140,10 +1145,36 @@ static struct sk_buff *tun_alloc_skb(struct tun_file *tfile, return skb; } +static void tun_rx_batched(struct tun_file *tfile, struct sk_buff *skb, + int more) +{ + struct...

...PARM_DESC(rx_batched, "Number of packets batched in rx"); + /* Uncomment to enable debugging */ /* #define TUN_DEBUG 1 */ @@ -522,6 +526,7 @@ static void tun_queue_purge(struct tun_file *tfile) while ((skb = skb_array_consume(&tfile->tx_array)) != NULL) kfree_skb(skb); + skb_queue_purge(&tfile->sk.sk_write_queue); skb_queue_purge(&tfile->sk.sk_error_queue); } @@ -1140,10 +1145,44 @@ static struct sk_buff *tun_alloc_skb(struct tun_file *tfile, return skb; } +static int tun_rx_batched(struct tun_file *tfile, struct sk_buff *skb, + int more) +{ + struct sk...

...return 0; + + vmchannel_sock_unlink(&vmchannel_sk_list, sk); + + sock_orphan(sk); + lock_sock(sk); + if (sk->sk_state == TCP_ESTABLISHED) { + sk->sk_state = TCP_CLOSE; + sk->sk_shutdown |= SEND_SHUTDOWN | RCV_SHUTDOWN; + sk->sk_err = ECONNRESET; + sk->sk_state_change(sk); + skb_queue_purge(&vmc->backlog_skb_q); + } + release_sock(sk); + sock_put(sk); + return 0; +} + +/* Bind an unbound socket */ +static int vmchannel_sock_bind(struct socket *sock, struct sockaddr *addr, + int alen) +{ + struct sockaddr_vmchannel *sa = (struct sockaddr_vmchannel *)addr; + struct sock *sk = so...

...return 0; + + vmchannel_sock_unlink(&vmchannel_sk_list, sk); + + sock_orphan(sk); + lock_sock(sk); + if (sk->sk_state == TCP_ESTABLISHED) { + sk->sk_state = TCP_CLOSE; + sk->sk_shutdown |= SEND_SHUTDOWN | RCV_SHUTDOWN; + sk->sk_err = ECONNRESET; + sk->sk_state_change(sk); + skb_queue_purge(&vmc->backlog_skb_q); + } + release_sock(sk); + sock_put(sk); + return 0; +} + +/* Bind an unbound socket */ +static int vmchannel_sock_bind(struct socket *sock, struct sockaddr *addr, + int alen) +{ + struct sockaddr_vmchannel *sa = (struct sockaddr_vmchannel *)addr; + struct sock *sk = so...

...struct list_head disabled; void *security; u32 flow_count; + u32 rx_batched; struct tun_pcpu_stats __percpu *pcpu_stats; }; @@ -522,6 +523,7 @@ static void tun_queue_purge(struct tun_file *tfile) while ((skb = skb_array_consume(&tfile->tx_array)) != NULL) kfree_skb(skb); + skb_queue_purge(&tfile->sk.sk_write_queue); skb_queue_purge(&tfile->sk.sk_error_queue); } @@ -1139,10 +1141,46 @@ static struct sk_buff *tun_alloc_skb(struct tun_file *tfile, return skb; } +static void tun_rx_batched(struct tun_struct *tun, struct tun_file *tfile, + struct sk_buff *skb...

...struct list_head disabled; void *security; u32 flow_count; + u32 rx_batched; struct tun_pcpu_stats __percpu *pcpu_stats; }; @@ -522,6 +523,7 @@ static void tun_queue_purge(struct tun_file *tfile) while ((skb = skb_array_consume(&tfile->tx_array)) != NULL) kfree_skb(skb); + skb_queue_purge(&tfile->sk.sk_write_queue); skb_queue_purge(&tfile->sk.sk_error_queue); } @@ -1140,10 +1142,45 @@ static struct sk_buff *tun_alloc_skb(struct tun_file *tfile, return skb; } +static void tun_rx_batched(struct tun_struct *tun, struct tun_file *tfile, + struct sk_buff *skb...

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

...t; u32 flow_count; > + u32 rx_batched; > struct tun_pcpu_stats __percpu *pcpu_stats; > }; > > @@ -522,6 +523,7 @@ static void tun_queue_purge(struct tun_file *tfile) > while ((skb = skb_array_consume(&tfile->tx_array)) != NULL) > kfree_skb(skb); > > + skb_queue_purge(&tfile->sk.sk_write_queue); > skb_queue_purge(&tfile->sk.sk_error_queue); > } > > @@ -1140,10 +1142,45 @@ static struct sk_buff *tun_alloc_skb(struct tun_file *tfile, > return skb; > } > > +static void tun_rx_batched(struct tun_struct *tun, struct tun...

...t; u32 flow_count; > + u32 rx_batched; > struct tun_pcpu_stats __percpu *pcpu_stats; > }; > > @@ -522,6 +523,7 @@ static void tun_queue_purge(struct tun_file *tfile) > while ((skb = skb_array_consume(&tfile->tx_array)) != NULL) > kfree_skb(skb); > > + skb_queue_purge(&tfile->sk.sk_write_queue); > skb_queue_purge(&tfile->sk.sk_error_queue); > } > > @@ -1140,10 +1142,45 @@ static struct sk_buff *tun_alloc_skb(struct tun_file *tfile, > return skb; > } > > +static void tun_rx_batched(struct tun_struct *tun, struct tun...

...,6 +168,7 @@ struct tun_file { }; struct list_head next; struct tun_struct *detached; + struct skb_array tx_array; }; struct tun_flow_entry { @@ -515,7 +517,11 @@ static struct tun_struct *tun_enable_queue(struct tun_file *tfile) static void tun_queue_purge(struct tun_file *tfile) { - skb_queue_purge(&tfile->sk.sk_receive_queue); + struct sk_buff *skb; + + while ((skb = skb_array_consume(&tfile->tx_array)) != NULL) + kfree_skb(skb); + skb_queue_purge(&tfile->sk.sk_error_queue); } @@ -560,6 +566,8 @@ static void __tun_detach(struct tun_file *tfile, bool clean)...

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

...ile) > +static void tun_queue_purge(struct tun_struct *tun, struct tun_file *tfile) > { > + struct sk_buff *skb; > + > + if (tun->flags & IFF_TX_ARRAY) { > + while ((skb = skb_array_consume(&tfile->tx_array)) != NULL) > + kfree_skb(skb); > + } > + > skb_queue_purge(&tfile->sk.sk_receive_queue); > skb_queue_purge(&tfile->sk.sk_error_queue); > } > @@ -545,7 +555,7 @@ static void __tun_detach(struct tun_file *tfile, bool clean) > synchronize_net(); > tun_flow_delete_by_queue(tun, tun->numqueues + 1); > /* Drop read...

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%