From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suresh Jayaraman Subject: [PATCH 14/31] net: sk_allocation() - concentrate socket related allocations Date: Thu, 1 Oct 2009 19:37:22 +0530 Message-ID: <1254406042-16156-1-git-send-email-sjayaraman@suse.de> Cc: netdev@vger.kernel.org, Neil Brown , Miklos Szeredi , Wouter Verhelst , Peter Zijlstra , trond.myklebust@fys.uio.no, Suresh Jayaraman To: Linus Torvalds , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org Return-path: Sender: owner-linux-mm@kvack.org List-Id: netdev.vger.kernel.org From: Peter Zijlstra Introduce sk_allocation(), this function allows to inject sock specific flags to each sock related allocation. Signed-off-by: Peter Zijlstra Signed-off-by: Suresh Jayaraman --- 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, 25 insertions(+), 10 deletions(-) Index: mmotm/include/net/sock.h =================================================================== --- mmotm.orig/include/net/sock.h +++ mmotm/include/net/sock.h @@ -526,6 +526,11 @@ 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: mmotm/net/ipv4/tcp.c =================================================================== --- mmotm.orig/net/ipv4/tcp.c +++ mmotm/net/ipv4/tcp.c @@ -645,7 +645,8 @@ 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)) { /* Index: mmotm/net/ipv4/tcp_output.c =================================================================== --- mmotm.orig/net/ipv4/tcp_output.c +++ mmotm/net/ipv4/tcp_output.c @@ -2101,7 +2101,8 @@ 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(); @@ -2127,7 +2128,7 @@ 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(sock_net(sk), LINUX_MIB_TCPABORTFAILED); return; @@ -2196,7 +2197,8 @@ struct sk_buff *tcp_make_synack(struct s __u8 *md5_hash_location; int mss; - 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; @@ -2443,7 +2445,7 @@ 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; @@ -2478,7 +2480,7 @@ 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: mmotm/net/ipv6/tcp_ipv6.c =================================================================== --- mmotm.orig/net/ipv6/tcp_ipv6.c +++ mmotm/net/ipv6/tcp_ipv6.c @@ -584,7 +584,8 @@ 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; @@ -597,7 +598,8 @@ 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(); @@ -721,7 +723,8 @@ 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; @@ -987,6 +990,7 @@ static void tcp_v6_send_response(struct unsigned int tot_len = sizeof(struct tcphdr); struct dst_entry *dst; __be32 *topt; + gfp_t gfp_mask = GFP_ATOMIC; if (ts) tot_len += TCPOLEN_TSTAMP_ALIGNED; @@ -996,7 +1000,7 @@ static void tcp_v6_send_response(struct #endif buff = alloc_skb(MAX_HEADER + sizeof(struct ipv6hdr) + tot_len, - GFP_ATOMIC); + gfp_mask); if (buff == NULL) return; @@ -1073,6 +1077,7 @@ static void tcp_v6_send_reset(struct soc struct tcphdr *th = tcp_hdr(skb); u32 seq = 0, ack_seq = 0; struct tcp_md5sig_key *key = NULL; + gfp_t gfp_mask = GFP_ATOMIC; if (th->rst) return; @@ -1084,6 +1089,8 @@ static void tcp_v6_send_reset(struct soc if (sk) key = tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr); #endif + if (sk) + gfp_mask = sk_allocation(sk, gfp_mask); if (th->ack) seq = ntohl(th->ack_seq); -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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