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linux/net/netfilter
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Eric Dumazet b7aa0bf70c [NET]: convert network timestamps to ktime_t 
We currently use a special structure (struct skb_timeval) and plain
'struct timeval' to store packet timestamps in sk_buffs and struct
sock.

This has some drawbacks :
- Fixed resolution of micro second.
- Waste of space on 64bit platforms where sizeof(struct timeval)=16

I suggest using ktime_t that is a nice abstraction of high resolution
time services, currently capable of nanosecond resolution.

As sizeof(ktime_t) is 8 bytes, using ktime_t in 'struct sock' permits
a 8 byte shrink of this structure on 64bit architectures. Some other
structures also benefit from this size reduction (struct ipq in
ipv4/ip_fragment.c, struct frag_queue in ipv6/reassembly.c, ...)

Once this ktime infrastructure adopted, we can more easily provide
nanosecond resolution on top of it. (ioctl SIOCGSTAMPNS and/or
SO_TIMESTAMPNS/SCM_TIMESTAMPNS)

Note : this patch includes a bug correction in
compat_sock_get_timestamp() where a "err = 0;" was missing (so this
syscall returned -ENOENT instead of 0)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
CC: Stephen Hemminger <shemminger@linux-foundation.org>
CC: John find <linux.kernel@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:23:34 -07:00
..
core.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
Kconfig [NETFILTER]: nf_conntrack_netlink: add missing dependency on NF_NAT 2007-03-22 12:29:57 -07:00
Makefile [NETFILTER]: add IPv6-capable TCPMSS target 2007-02-08 12:39:16 -08:00
nf_conntrack_amanda.c
nf_conntrack_core.c [NETFILTER]: nf_conntrack/nf_nat: fix incorrect config ifdefs 2007-03-05 13:25:19 -08:00
nf_conntrack_ecache.c
nf_conntrack_expect.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_ftp.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_h323_asn1.c
nf_conntrack_h323_main.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_h323_types.c
nf_conntrack_helper.c
nf_conntrack_irc.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_l3proto_generic.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_netbios_ns.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_netlink.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_pptp.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_proto_generic.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
nf_conntrack_proto_gre.c [NETFILTER]: nf_conntrack/nf_nat: fix incorrect config ifdefs 2007-03-05 13:25:19 -08:00
nf_conntrack_proto_sctp.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
nf_conntrack_proto_tcp.c [NETFILTER]: tcp conntrack: accept SYN|URG as valid 2007-03-05 13:25:20 -08:00
nf_conntrack_proto_udp.c [NETFILTER]: nf_conntrack/nf_nat: fix incorrect config ifdefs 2007-03-05 13:25:19 -08:00
nf_conntrack_proto.c [NETFILTER]: nf_conntrack: change nf_conntrack_l[34]proto_unregister to void 2007-02-12 11:14:28 -08:00
nf_conntrack_sane.c [NETFILTER]: Add SANE connection tracking helper 2007-02-08 12:39:09 -08:00
nf_conntrack_sip.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_standalone.c [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
nf_conntrack_tftp.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_internals.h [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_log.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_queue.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_sockopt.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_sysctl.c [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
nfnetlink_log.c [NET]: convert network timestamps to ktime_t 2007-04-25 22:23:34 -07:00
nfnetlink_queue.c [NET]: convert network timestamps to ktime_t 2007-04-25 22:23:34 -07:00
nfnetlink.c [NET]: Handle disabled preemption in gfp_any() 2007-02-28 09:42:13 -08:00
x_tables.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_CLASSIFY.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_comment.c
xt_connbytes.c [NET]: div64_64 consolidate (rev3) 2007-04-25 22:23:33 -07:00
xt_connmark.c
xt_CONNMARK.c [NETFILTER]: Remove useless comparisons before assignments 2007-02-08 12:39:11 -08:00
xt_CONNSECMARK.c [NETFILTER]: Remove useless comparisons before assignments 2007-02-08 12:39:11 -08:00
xt_conntrack.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_dccp.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_dscp.c
xt_DSCP.c
xt_esp.c
xt_hashlimit.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_helper.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_length.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_limit.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_mac.c [NETFILTER]: xt_mac/xt_CLASSIFY: use IPv6 hook names for IPv6 registration 2007-02-12 11:14:43 -08:00
xt_mark.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_MARK.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_multiport.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_NFLOG.c
xt_NFQUEUE.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_NOTRACK.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_physdev.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_pkttype.c
xt_policy.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_quota.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_realm.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_sctp.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_SECMARK.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_state.c
xt_statistic.c
xt_string.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_tcpmss.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_TCPMSS.c [NETFILTER]: add IPv6-capable TCPMSS target 2007-02-08 12:39:16 -08:00
xt_tcpudp.c