From 5a0e3ad6af8660be21ca98a971cd00f331318c05 Mon Sep 17 00:00:00 2001 From: Tejun Heo <tj@kernel.org> Date: Wed, 24 Mar 2010 17:04:11 +0900 Subject: include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com> --- net/ipv6/addrconf.c | 1 + net/ipv6/addrlabel.c | 1 + net/ipv6/af_inet6.c | 1 + net/ipv6/ah6.c | 1 + net/ipv6/anycast.c | 1 + net/ipv6/datagram.c | 1 + net/ipv6/exthdrs.c | 1 + net/ipv6/icmp.c | 1 + net/ipv6/inet6_connection_sock.c | 1 + net/ipv6/ip6_fib.c | 1 + net/ipv6/ip6_flowlabel.c | 1 + net/ipv6/ip6_input.c | 1 + net/ipv6/ip6_output.c | 1 + net/ipv6/ip6_tunnel.c | 1 + net/ipv6/ip6mr.c | 1 + net/ipv6/ipv6_sockglue.c | 1 + net/ipv6/mcast.c | 1 + net/ipv6/ndisc.c | 1 + net/ipv6/netfilter/ip6_queue.c | 1 + net/ipv6/netfilter/ip6t_REJECT.c | 1 + net/ipv6/netfilter/ip6table_filter.c | 1 + net/ipv6/netfilter/ip6table_mangle.c | 1 + net/ipv6/netfilter/ip6table_raw.c | 1 + net/ipv6/netfilter/ip6table_security.c | 1 + net/ipv6/netfilter/nf_conntrack_reasm.c | 1 + net/ipv6/raw.c | 1 + net/ipv6/reassembly.c | 1 + net/ipv6/route.c | 1 + net/ipv6/sit.c | 1 + net/ipv6/sysctl_net_ipv6.c | 1 + net/ipv6/tcp_ipv6.c | 1 + net/ipv6/tunnel6.c | 1 + net/ipv6/udp.c | 1 + net/ipv6/xfrm6_mode_tunnel.c | 1 + net/ipv6/xfrm6_tunnel.c | 1 + 35 files changed, 35 insertions(+) (limited to 'net/ipv6') diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 7e567ae5eaa..413054f02aa 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -53,6 +53,7 @@ #include <linux/route.h> #include <linux/inetdevice.h> #include <linux/init.h> +#include <linux/slab.h> #ifdef CONFIG_SYSCTL #include <linux/sysctl.h> #endif diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c index 6ff73c4c126..ae404c9a746 100644 --- a/net/ipv6/addrlabel.c +++ b/net/ipv6/addrlabel.c @@ -13,6 +13,7 @@ #include <linux/list.h> #include <linux/rcupdate.h> #include <linux/in6.h> +#include <linux/slab.h> #include <net/addrconf.h> #include <linux/if_addrlabel.h> #include <linux/netlink.h> diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 37d14e735c2..3192aa02ba5 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -36,6 +36,7 @@ #include <linux/proc_fs.h> #include <linux/stat.h> #include <linux/init.h> +#include <linux/slab.h> #include <linux/inet.h> #include <linux/netdevice.h> diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c index 5ac89025f9d..ee82d4ef26c 100644 --- a/net/ipv6/ah6.c +++ b/net/ipv6/ah6.c @@ -26,6 +26,7 @@ #include <crypto/hash.h> #include <linux/module.h> +#include <linux/slab.h> #include <net/ip.h> #include <net/ah.h> #include <linux/crypto.h> diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c index c4f6ca32fa7..b5b07054508 100644 --- a/net/ipv6/anycast.c +++ b/net/ipv6/anycast.c @@ -29,6 +29,7 @@ #include <linux/init.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/slab.h> #include <net/net_namespace.h> #include <net/sock.h> diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index e6f9cdf780f..622dc7939a1 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -21,6 +21,7 @@ #include <linux/in6.h> #include <linux/ipv6.h> #include <linux/route.h> +#include <linux/slab.h> #include <net/ipv6.h> #include <net/ndisc.h> diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 074f2c084f9..8a659f92d17 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -29,6 +29,7 @@ #include <linux/netdevice.h> #include <linux/in6.h> #include <linux/icmpv6.h> +#include <linux/slab.h> #include <net/dst.h> #include <net/sock.h> diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index eb9abe24bdf..3330a4bd615 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -40,6 +40,7 @@ #include <linux/skbuff.h> #include <linux/init.h> #include <linux/netfilter.h> +#include <linux/slab.h> #ifdef CONFIG_SYSCTL #include <linux/sysctl.h> diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c index 3516e6fe2e5..628db24bcf2 100644 --- a/net/ipv6/inet6_connection_sock.c +++ b/net/ipv6/inet6_connection_sock.c @@ -17,6 +17,7 @@ #include <linux/in6.h> #include <linux/ipv6.h> #include <linux/jhash.h> +#include <linux/slab.h> #include <net/addrconf.h> #include <net/inet_connection_sock.h> diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 2f9847924fa..6b82e02158c 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -26,6 +26,7 @@ #include <linux/in6.h> #include <linux/init.h> #include <linux/list.h> +#include <linux/slab.h> #ifdef CONFIG_PROC_FS #include <linux/proc_fs.h> diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c index e41eba8aacf..14e23216eb2 100644 --- a/net/ipv6/ip6_flowlabel.c +++ b/net/ipv6/ip6_flowlabel.c @@ -20,6 +20,7 @@ #include <linux/route.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/slab.h> #include <net/net_namespace.h> #include <net/sock.h> diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index e28f9203dec..6aa7ee1295c 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -28,6 +28,7 @@ #include <linux/in6.h> #include <linux/icmpv6.h> #include <linux/mroute6.h> +#include <linux/slab.h> #include <linux/netfilter.h> #include <linux/netfilter_ipv6.h> diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index dabf108ad81..16c4391f952 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -37,6 +37,7 @@ #include <linux/tcp.h> #include <linux/route.h> #include <linux/module.h> +#include <linux/slab.h> #include <linux/netfilter.h> #include <linux/netfilter_ipv6.h> diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 138980eec21..2599870747e 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -37,6 +37,7 @@ #include <linux/route.h> #include <linux/rtnetlink.h> #include <linux/netfilter_ipv6.h> +#include <linux/slab.h> #include <asm/uaccess.h> #include <asm/atomic.h> diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index 27acfb58650..3e333268db8 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -33,6 +33,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/init.h> +#include <linux/slab.h> #include <net/protocol.h> #include <linux/skbuff.h> #include <net/sock.h> diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 430454ee5ea..33f60fca7aa 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -36,6 +36,7 @@ #include <linux/init.h> #include <linux/sysctl.h> #include <linux/netfilter.h> +#include <linux/slab.h> #include <net/sock.h> #include <net/snmp.h> diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index bcd97191596..c483ab9fd67 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -43,6 +43,7 @@ #include <linux/init.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/slab.h> #include <linux/netfilter.h> #include <linux/netfilter_ipv6.h> diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 8bcc4b7db3b..da0a4d2adc6 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -59,6 +59,7 @@ #include <linux/route.h> #include <linux/init.h> #include <linux/rcupdate.h> +#include <linux/slab.h> #ifdef CONFIG_SYSCTL #include <linux/sysctl.h> #endif diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c index 7854052be60..6a68a74d14a 100644 --- a/net/ipv6/netfilter/ip6_queue.c +++ b/net/ipv6/netfilter/ip6_queue.c @@ -25,6 +25,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/mutex.h> +#include <linux/slab.h> #include <net/net_namespace.h> #include <net/sock.h> #include <net/ipv6.h> diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c index dd8afbaf00a..39b50c3768e 100644 --- a/net/ipv6/netfilter/ip6t_REJECT.c +++ b/net/ipv6/netfilter/ip6t_REJECT.c @@ -15,6 +15,7 @@ * 2 of the License, or (at your option) any later version. */ +#include <linux/gfp.h> #include <linux/module.h> #include <linux/skbuff.h> #include <linux/icmpv6.h> diff --git a/net/ipv6/netfilter/ip6table_filter.c b/net/ipv6/netfilter/ip6table_filter.c index 36b72cafc22..d6fc9aff316 100644 --- a/net/ipv6/netfilter/ip6table_filter.c +++ b/net/ipv6/netfilter/ip6table_filter.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/netfilter_ipv6/ip6_tables.h> +#include <linux/slab.h> MODULE_LICENSE("GPL"); MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>"); diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c index 7844e557c0e..6a102b57f35 100644 --- a/net/ipv6/netfilter/ip6table_mangle.c +++ b/net/ipv6/netfilter/ip6table_mangle.c @@ -10,6 +10,7 @@ */ #include <linux/module.h> #include <linux/netfilter_ipv6/ip6_tables.h> +#include <linux/slab.h> MODULE_LICENSE("GPL"); MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>"); diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c index b9cf7cd6192..5b9926a011b 100644 --- a/net/ipv6/netfilter/ip6table_raw.c +++ b/net/ipv6/netfilter/ip6table_raw.c @@ -5,6 +5,7 @@ */ #include <linux/module.h> #include <linux/netfilter_ipv6/ip6_tables.h> +#include <linux/slab.h> #define RAW_VALID_HOOKS ((1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_OUT)) diff --git a/net/ipv6/netfilter/ip6table_security.c b/net/ipv6/netfilter/ip6table_security.c index 0824d865aa9..91aa2b4d83c 100644 --- a/net/ipv6/netfilter/ip6table_security.c +++ b/net/ipv6/netfilter/ip6table_security.c @@ -17,6 +17,7 @@ */ #include <linux/module.h> #include <linux/netfilter_ipv6/ip6_tables.h> +#include <linux/slab.h> MODULE_LICENSE("GPL"); MODULE_AUTHOR("James Morris <jmorris <at> redhat.com>"); diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index f1171b74465..dd5b9bd61c6 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -27,6 +27,7 @@ #include <linux/ipv6.h> #include <linux/icmpv6.h> #include <linux/random.h> +#include <linux/slab.h> #include <net/sock.h> #include <net/snmp.h> diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index ed31c37c6e3..8763b1a0814 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -21,6 +21,7 @@ #include <linux/errno.h> #include <linux/types.h> #include <linux/socket.h> +#include <linux/slab.h> #include <linux/sockios.h> #include <linux/net.h> #include <linux/in6.h> diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index a555156e977..6d4292ff585 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -41,6 +41,7 @@ #include <linux/random.h> #include <linux/jhash.h> #include <linux/skbuff.h> +#include <linux/slab.h> #include <net/sock.h> #include <net/snmp.h> diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 0d7713c5c20..c2438e8cb9d 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -40,6 +40,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/nsproxy.h> +#include <linux/slab.h> #include <net/net_namespace.h> #include <net/snmp.h> #include <net/ipv6.h> diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index b1eea811be4..5abae10cd88 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -28,6 +28,7 @@ #include <linux/netdevice.h> #include <linux/if_arp.h> #include <linux/icmp.h> +#include <linux/slab.h> #include <asm/uaccess.h> #include <linux/init.h> #include <linux/netfilter_ipv4.h> diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c index f841d93bf98..fa1d8f4e005 100644 --- a/net/ipv6/sysctl_net_ipv6.c +++ b/net/ipv6/sysctl_net_ipv6.c @@ -9,6 +9,7 @@ #include <linux/sysctl.h> #include <linux/in6.h> #include <linux/ipv6.h> +#include <linux/slab.h> #include <net/ndisc.h> #include <net/ipv6.h> #include <net/addrconf.h> diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 9b6dbba80d3..c92ebe8f80d 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -38,6 +38,7 @@ #include <linux/jhash.h> #include <linux/ipsec.h> #include <linux/times.h> +#include <linux/slab.h> #include <linux/ipv6.h> #include <linux/icmpv6.h> diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c index e17bc1dfc1a..fc3c86a4745 100644 --- a/net/ipv6/tunnel6.c +++ b/net/ipv6/tunnel6.c @@ -25,6 +25,7 @@ #include <linux/mutex.h> #include <linux/netdevice.h> #include <linux/skbuff.h> +#include <linux/slab.h> #include <net/ipv6.h> #include <net/protocol.h> #include <net/xfrm.h> diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 3c0c9c755c9..c177aea88c0 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -34,6 +34,7 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/skbuff.h> +#include <linux/slab.h> #include <asm/uaccess.h> #include <net/ndisc.h> diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c index 3927832227b..b809812c8d3 100644 --- a/net/ipv6/xfrm6_mode_tunnel.c +++ b/net/ipv6/xfrm6_mode_tunnel.c @@ -5,6 +5,7 @@ * Copyright (c) 2004-2006 Herbert Xu <herbert@gondor.apana.org.au> */ +#include <linux/gfp.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c index fa85a7d22dc..2ce3a8278f2 100644 --- a/net/ipv6/xfrm6_tunnel.c +++ b/net/ipv6/xfrm6_tunnel.c @@ -23,6 +23,7 @@ */ #include <linux/module.h> #include <linux/xfrm.h> +#include <linux/slab.h> #include <linux/rculist.h> #include <net/ip.h> #include <net/xfrm.h> -- cgit v1.2.3-70-g09d2 From 1223c67c0938d2df309fde618bd82c87c8c1af04 Mon Sep 17 00:00:00 2001 From: "Jorge Boncompte [DTI2]" <jorge@dti2.net> Date: Thu, 8 Apr 2010 04:56:48 +0000 Subject: udp: fix for unicast RX path optimization Commits 5051ebd275de672b807c28d93002c2fb0514a3c9 and 5051ebd275de672b807c28d93002c2fb0514a3c9 ("ipv[46]: udp: optimize unicast RX path") broke some programs. After upgrading a L2TP server to 2.6.33 it started to fail, tunnels going up an down, after the 10th tunnel came up. My modified rp-l2tp uses a global unconnected socket bound to (INADDR_ANY, 1701) and one connected socket per tunnel after parameter negotiation. After ten sockets were open and due to mixed parameters to udp[46]_lib_lookup2() kernel started to drop packets. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/ipv4/udp.c | 4 ++-- net/ipv6/udp.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'net/ipv6') diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 7af756d0f93..24272c4cfbc 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -471,8 +471,8 @@ static struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, if (hslot->count < hslot2->count) goto begin; - result = udp4_lib_lookup2(net, INADDR_ANY, sport, - daddr, hnum, dif, + result = udp4_lib_lookup2(net, saddr, sport, + INADDR_ANY, hnum, dif, hslot2, slot2); } rcu_read_unlock(); diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 3c0c9c755c9..787e480cc09 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -258,8 +258,8 @@ static struct sock *__udp6_lib_lookup(struct net *net, if (hslot->count < hslot2->count) goto begin; - result = udp6_lib_lookup2(net, &in6addr_any, sport, - daddr, hnum, dif, + result = udp6_lib_lookup2(net, saddr, sport, + &in6addr_any, hnum, dif, hslot2, slot2); } rcu_read_unlock(); -- cgit v1.2.3-70-g09d2