Introduce sk_allocation(), this function allows to inject sock specific flags to each sock related allocation. Signed-off-by: Peter Zijlstra --- include/net/sock.h | 5 +++++ net/ipv4/tcp.c | 3 ++- net/ipv4/tcp_output.c | 12 +++++++----- net/ipv6/tcp_ipv6.c | 15 ++++++++++----- 4 files changed, 24 insertions(+), 11 deletions(-) Index: linux-2.6/net/ipv4/tcp_output.c =================================================================== --- linux-2.6.orig/net/ipv4/tcp_output.c +++ linux-2.6/net/ipv4/tcp_output.c @@ -2078,7 +2078,8 @@ void tcp_send_fin(struct sock *sk) } else { /* Socket is locked, keep trying until memory is available. */ for (;;) { - skb = alloc_skb_fclone(MAX_TCP_HEADER, GFP_KERNEL); + skb = alloc_skb_fclone(MAX_TCP_HEADER, + sk_allocation(sk, GFP_KERNEL)); if (skb) break; yield(); @@ -2104,7 +2105,7 @@ void tcp_send_active_reset(struct sock * struct sk_buff *skb; /* NOTE: No TCP options attached and we never retransmit this. */ - skb = alloc_skb(MAX_TCP_HEADER, priority); + skb = alloc_skb(MAX_TCP_HEADER, sk_allocation(sk, priority)); if (!skb) { NET_INC_STATS(LINUX_MIB_TCPABORTFAILED); return; @@ -2171,7 +2172,8 @@ struct sk_buff *tcp_make_synack(struct s __u8 *md5_hash_location; #endif - skb = sock_wmalloc(sk, MAX_TCP_HEADER + 15, 1, GFP_ATOMIC); + skb = sock_wmalloc(sk, MAX_TCP_HEADER + 15, 1, + sk_allocation(sk, GFP_ATOMIC)); if (skb == NULL) return NULL; @@ -2425,7 +2427,7 @@ void tcp_send_ack(struct sock *sk) * tcp_transmit_skb() will set the ownership to this * sock. */ - buff = alloc_skb(MAX_TCP_HEADER, GFP_ATOMIC); + buff = alloc_skb(MAX_TCP_HEADER, sk_allocation(sk, GFP_ATOMIC)); if (buff == NULL) { inet_csk_schedule_ack(sk); inet_csk(sk)->icsk_ack.ato = TCP_ATO_MIN; @@ -2460,7 +2462,7 @@ static int tcp_xmit_probe_skb(struct soc struct sk_buff *skb; /* We don't queue it, tcp_transmit_skb() sets ownership. */ - skb = alloc_skb(MAX_TCP_HEADER, GFP_ATOMIC); + skb = alloc_skb(MAX_TCP_HEADER, sk_allocation(sk, GFP_ATOMIC)); if (skb == NULL) return -1; Index: linux-2.6/include/net/sock.h =================================================================== --- linux-2.6.orig/include/net/sock.h +++ linux-2.6/include/net/sock.h @@ -427,6 +427,11 @@ static inline int sock_flag(struct sock return test_bit(flag, &sk->sk_flags); } +static inline gfp_t sk_allocation(struct sock *sk, gfp_t gfp_mask) +{ + return gfp_mask; +} + static inline void sk_acceptq_removed(struct sock *sk) { sk->sk_ack_backlog--; Index: linux-2.6/net/ipv6/tcp_ipv6.c =================================================================== --- linux-2.6.orig/net/ipv6/tcp_ipv6.c +++ linux-2.6/net/ipv6/tcp_ipv6.c @@ -568,7 +568,8 @@ static int tcp_v6_md5_do_add(struct sock } else { /* reallocate new list if current one is full. */ if (!tp->md5sig_info) { - tp->md5sig_info = kzalloc(sizeof(*tp->md5sig_info), GFP_ATOMIC); + tp->md5sig_info = kzalloc(sizeof(*tp->md5sig_info), + sk_allocation(sk, GFP_ATOMIC)); if (!tp->md5sig_info) { kfree(newkey); return -ENOMEM; @@ -581,7 +582,8 @@ static int tcp_v6_md5_do_add(struct sock } if (tp->md5sig_info->alloced6 == tp->md5sig_info->entries6) { keys = kmalloc((sizeof (tp->md5sig_info->keys6[0]) * - (tp->md5sig_info->entries6 + 1)), GFP_ATOMIC); + (tp->md5sig_info->entries6 + 1)), + sk_allocation(sk, GFP_ATOMIC)); if (!keys) { tcp_free_md5sig_pool(); @@ -705,7 +707,8 @@ static int tcp_v6_parse_md5_keys (struct struct tcp_sock *tp = tcp_sk(sk); struct tcp_md5sig_info *p; - p = kzalloc(sizeof(struct tcp_md5sig_info), GFP_KERNEL); + p = kzalloc(sizeof(struct tcp_md5sig_info), + sk_allocation(sk, GFP_KERNEL)); if (!p) return -ENOMEM; @@ -1006,7 +1009,7 @@ static void tcp_v6_send_reset(struct soc */ buff = alloc_skb(MAX_HEADER + sizeof(struct ipv6hdr) + tot_len, - GFP_ATOMIC); + sk_allocation(sk, GFP_ATOMIC)); if (buff == NULL) return; @@ -1085,10 +1088,12 @@ static void tcp_v6_send_ack(struct tcp_t struct tcp_md5sig_key *key; struct tcp_md5sig_key tw_key; #endif + gfp_t gfp_mask = GFP_ATOMIC; #ifdef CONFIG_TCP_MD5SIG if (!tw && skb->sk) { key = tcp_v6_md5_do_lookup(skb->sk, &ipv6_hdr(skb)->daddr); + gfp_mask = sk_allocation(skb->sk, gfp_mask); } else if (tw && tw->tw_md5_keylen) { tw_key.key = tw->tw_md5_key; tw_key.keylen = tw->tw_md5_keylen; @@ -1106,7 +1111,7 @@ static void tcp_v6_send_ack(struct tcp_t #endif buff = alloc_skb(MAX_HEADER + sizeof(struct ipv6hdr) + tot_len, - GFP_ATOMIC); + gfp_mask); if (buff == NULL) return; Index: linux-2.6/net/ipv4/tcp.c =================================================================== --- linux-2.6.orig/net/ipv4/tcp.c +++ linux-2.6/net/ipv4/tcp.c @@ -636,7 +636,8 @@ struct sk_buff *sk_stream_alloc_skb(stru /* The TCP header must be at least 32-bit aligned. */ size = ALIGN(size, 4); - skb = alloc_skb_fclone(size + sk->sk_prot->max_header, gfp); + skb = alloc_skb_fclone(size + sk->sk_prot->max_header, + sk_allocation(sk, gfp)); if (skb) { if (sk_wmem_schedule(sk, skb->truesize)) { /* -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/