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 | 7 ++++++- net/ipv4/tcp_output.c | 11 ++++++----- net/ipv6/tcp_ipv6.c | 14 +++++++++----- 3 files changed, 21 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 @@ -2081,7 +2081,7 @@ 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->sk_allocation); if (skb) break; yield(); @@ -2114,7 +2114,7 @@ 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; @@ -2187,7 +2187,8 @@ struct sk_buff * tcp_make_synack(struct __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; @@ -2446,7 +2447,7 @@ 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; @@ -2488,7 +2489,7 @@ 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 @@ -419,6 +419,11 @@ 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--; @@ -1212,7 +1217,7 @@ static inline struct sk_buff *sk_stream_ int hdr_len; hdr_len = SKB_DATA_ALIGN(sk->sk_prot->max_header); - skb = alloc_skb_fclone(size + hdr_len, gfp); + skb = alloc_skb_fclone(size + hdr_len, sk_allocation(sk, gfp)); if (skb) { skb->truesize += mem; if (sk_stream_wmem_schedule(sk, skb->truesize)) { 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 @@ -573,7 +573,8 @@ 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; @@ -583,7 +584,8 @@ static int tcp_v6_md5_do_add(struct sock tcp_alloc_md5sig_pool(); 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(); @@ -709,7 +711,7 @@ 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->sk_allocation); if (!p) return -ENOMEM; @@ -1006,7 +1008,7 @@ 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 +1087,12 @@ 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 +1110,7 @@ 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; -- - 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/