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Date: Fri, 30 Mar 2018 17:53:06 -0700 From: Eric Dumazet <edumazet@...gle.com> To: "David S . Miller" <davem@...emloft.net> Cc: netdev <netdev@...r.kernel.org>, Florian Westphal <fw@...len.de>, Herbert Xu <herbert@...dor.apana.org.au>, Thomas Graf <tgraf@...g.ch>, Jesper Dangaard Brouer <brouer@...hat.com>, Alexander Aring <alex.aring@...il.com>, Stefan Schmidt <stefan@....samsung.com>, Kirill Tkhai <ktkhai@...tuozzo.com>, Eric Dumazet <edumazet@...gle.com>, Eric Dumazet <eric.dumazet@...il.com> Subject: [PATCH v3 net-next 09/12] inet: frags: remove some helpers Remove sum_frag_mem_limit(), ip_frag_mem() & ip6_frag_mem() Also since we use rhashtable we can bring back the number of fragments in "grep FRAG /proc/net/sockstat /proc/net/sockstat6" that was removed in commit 434d305405ab ("inet: frag: don't account number of fragment queues") Signed-off-by: Eric Dumazet <edumazet@...gle.com> --- include/net/inet_frag.h | 5 ----- include/net/ip.h | 1 - include/net/ipv6.h | 7 ------- net/ipv4/ip_fragment.c | 5 ----- net/ipv4/proc.c | 6 +++--- net/ipv6/proc.c | 5 +++-- 6 files changed, 6 insertions(+), 23 deletions(-) diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h index 3fec0d3a0d0186e98afb951784e1fe7329ba6d77..4b5449df0aadf1f75144c98317bf5305ec91d88b 100644 --- a/include/net/inet_frag.h +++ b/include/net/inet_frag.h @@ -141,11 +141,6 @@ static inline void add_frag_mem_limit(struct netns_frags *nf, int i) atomic_add(i, &nf->mem); } -static inline int sum_frag_mem_limit(struct netns_frags *nf) -{ - return atomic_read(&nf->mem); -} - /* RFC 3168 support : * We want to check ECN values of all fragments, do detect invalid combinations. * In ipq->ecn, we store the OR value of each ip4_frag_ecn() fragment value. diff --git a/include/net/ip.h b/include/net/ip.h index 36f8f7811093c37de06194dc7410b7596f8bf9fa..ecffd843e7b896a83416847fdaa452be6223f3dc 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -588,7 +588,6 @@ static inline struct sk_buff *ip_check_defrag(struct net *net, struct sk_buff *s return skb; } #endif -int ip_frag_mem(struct net *net); /* * Functions provided by ip_forward.c diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 6fa9a2bc589665dfa9ce84813f33e5e86e12fd74..37455e84034779fab96c231fa069957a6dcf2b42 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -379,13 +379,6 @@ static inline bool ipv6_accept_ra(struct inet6_dev *idev) idev->cnf.accept_ra; } -#if IS_ENABLED(CONFIG_IPV6) -static inline int ip6_frag_mem(struct net *net) -{ - return sum_frag_mem_limit(&net->ipv6.frags); -} -#endif - #define IPV6_FRAG_HIGH_THRESH (4 * 1024*1024) /* 4194304 */ #define IPV6_FRAG_LOW_THRESH (3 * 1024*1024) /* 3145728 */ #define IPV6_FRAG_TIMEOUT (60 * HZ) /* 60 seconds */ diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 4021820db6f291b255cc53aeca91dd74aef29934..44f4fa306e224a6f76183b1c04935f01ceb4fe2b 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -83,11 +83,6 @@ static u8 ip4_frag_ecn(u8 tos) static struct inet_frags ip4_frags; -int ip_frag_mem(struct net *net) -{ - return sum_frag_mem_limit(&net->ipv4.frags); -} - static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev, struct net_device *dev); diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c index adfb75340275d240487574257c10feb295df44fe..aacfce0d7d82cf59269a69ef4d6ac8d9955b0bdc 100644 --- a/net/ipv4/proc.c +++ b/net/ipv4/proc.c @@ -54,7 +54,6 @@ static int sockstat_seq_show(struct seq_file *seq, void *v) { struct net *net = seq->private; - unsigned int frag_mem; int orphans, sockets; orphans = percpu_counter_sum_positive(&tcp_orphan_count); @@ -72,8 +71,9 @@ static int sockstat_seq_show(struct seq_file *seq, void *v) sock_prot_inuse_get(net, &udplite_prot)); seq_printf(seq, "RAW: inuse %d\n", sock_prot_inuse_get(net, &raw_prot)); - frag_mem = ip_frag_mem(net); - seq_printf(seq, "FRAG: inuse %u memory %u\n", !!frag_mem, frag_mem); + seq_printf(seq, "FRAG: inuse %u memory %u\n", + atomic_read(&net->ipv4.frags.rhashtable.nelems), + frag_mem_limit(&net->ipv4.frags)); return 0; } diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c index 6e57028d2e9160be264d07f9312658fcb677a568..8befeb91e0712ecc4d05c4c0a6ecca1808dcbcac 100644 --- a/net/ipv6/proc.c +++ b/net/ipv6/proc.c @@ -38,7 +38,6 @@ static int sockstat6_seq_show(struct seq_file *seq, void *v) { struct net *net = seq->private; - unsigned int frag_mem = ip6_frag_mem(net); seq_printf(seq, "TCP6: inuse %d\n", sock_prot_inuse_get(net, &tcpv6_prot)); @@ -48,7 +47,9 @@ static int sockstat6_seq_show(struct seq_file *seq, void *v) sock_prot_inuse_get(net, &udplitev6_prot)); seq_printf(seq, "RAW6: inuse %d\n", sock_prot_inuse_get(net, &rawv6_prot)); - seq_printf(seq, "FRAG6: inuse %u memory %u\n", !!frag_mem, frag_mem); + seq_printf(seq, "FRAG6: inuse %u memory %u\n", + atomic_read(&net->ipv6.frags.rhashtable.nelems), + frag_mem_limit(&net->ipv6.frags)); return 0; } -- 2.17.0.rc1.321.gba9d0f2565-goog
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