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Alexander V. Chernikov 670e8b3b8c Kill custom in_matroute() radix mathing function removing one rte mutex lock. 
Initially in_matrote() in_clsroute() in their current state was introduced by
r4105 20 years ago. Instead of deleting inactive routes immediately, we kept them
in route table, setting RTPRF_OURS flag and some expire time. After that, either
GC came or RTPRF_OURS got removed on first-packet. It was a good solution
in that days (and probably another decade after that) to keep TCP metrics.
However, after moving metrics to TCP hostcache in r122922, most of in_rmx
functionality became unused. It might had been used for flushing icmp-originated
routes before rte mutexes/refcounting, but I'm not sure about that.

So it looks like this is nearly impossible to make GC do its work nowadays:

in_rtkill() ignores non-RTPRF_OURS routes.
route can only become RTPRF_OURS after dropping last reference via rtfree()
which calls in_clsroute(), which, it turn, ignores UP and non-RTF_DYNAMIC routes.

Dynamic routes can still be installed via received redirect, but they
have default lifetime (no specific rt_expire) and no one has another trie walker
to call RTFREE() on them.

So, the changelist:
* remove custom rnh_match / rnh_close matching function.
* remove all GC functions
* partially revert r256695 (proto3 is no more used inside kernel,
  it is not possible to use rt_expire from user point of view, proto3 support
  is not complete)
* Finish r241884 (similar to this commit) and remove remaining IPv6 parts

MFC after:	1 month
2014-11-11 02:52:40 +00:00
..
adjkerntz use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
atm Fix atmconfig compilation when MK_ATM == yes and MK_BSNMP == no 2014-08-15 21:22:49 +00:00
badsect Add missing static keywords for global variables to tools in sbin/. 2011-11-04 13:36:02 +00:00
bsdlabel Remove ia64. 2014-07-07 00:27:09 +00:00
camcontrol Attempt to report a better error if sanitize is not supported 2014-11-09 18:13:08 +00:00
casperd use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
ccdconfig Sweep man pages replacing ad -> ada. 2013-10-01 18:41:53 +00:00
clri
comcontrol A number of places in the source tree still reference cuad.* after 2012-12-08 22:16:36 +00:00
conscontrol Add references to vt(4) to further man-pages. 2014-09-01 16:25:08 +00:00
ddb remove duplicate semicolons where possible. 2012-10-22 03:00:37 +00:00
devd Misc fixes suggested by Coverity. 2014-08-20 17:04:49 +00:00
devfs Clarify how "hide" and "unhide" commands work on directories. 2013-07-12 06:03:25 +00:00
dhclient Since r270929 raw sockets expect network byte order. 2014-09-11 05:48:39 +00:00
dmesg Move the check whether the clear flag is set. This has 2 advantages 2013-06-11 17:46:32 +00:00
dump Fix a bug which could break extended attributes in a dump output. 2014-09-10 22:37:20 +00:00
dumpfs When running the -m option to generate a newfs(8) command suitable for 2013-05-16 20:07:08 +00:00
dumpon Revert r156046. We support setting dumpdev via loader tunable again. 2014-10-08 12:19:48 +00:00
etherswitchcfg Check the number of returned entries before doing any access to ifm_ulist. 2014-07-05 20:16:02 +00:00
fdisk Remove ia64. 2014-07-07 00:27:09 +00:00
fdisk_pc98 Merged from r183296. 2014-09-28 08:23:26 +00:00
ffsinfo use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
fsck Revert r267233 for now. PIE support needs to be reworked. 2014-08-19 15:04:32 +00:00
fsck_ffs Avoid segment fault when attempting to clean up cylinder group 2014-03-12 01:28:21 +00:00
fsck_msdosfs Make UEFI booting of 4Kn disks work: 2014-10-30 15:52:01 +00:00
fsdb Replace all uses of libncurses and libtermcap with their wide character 2014-07-17 18:24:34 +00:00
fsirand fsirand does not actually use libutil 2014-11-05 22:46:11 +00:00
gbde Report the 1-based key numbers rather than the 0-based ones to be consistent. 2014-11-09 15:53:29 +00:00
geom Turn off kern.geom.part.mbr.enforce_chs by default. 2014-08-12 10:31:31 +00:00
ggate use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
growfs use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
gvinum Replace all uses of libncurses and libtermcap with their wide character 2014-07-17 18:24:34 +00:00
hastctl use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
hastd Add lock annotations to the threading API used by hastd. 2014-09-01 18:37:17 +00:00
ifconfig Overhaul if_gre(4). 2014-11-07 19:13:19 +00:00
init Remove LOG_ODELAY because it does nothing. 2014-08-17 19:06:26 +00:00
ipf Revert r267233 for now. PIE support needs to be reworked. 2014-08-19 15:04:32 +00:00
ipfw Fix documentation issue. 2014-10-24 17:06:56 +00:00
iscontrol Mark iscontrol(8) and iscsi_initiator(4) obsolete. 2014-10-11 05:18:22 +00:00
kldconfig use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
kldload use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
kldstat use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
kldunload use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
ldconfig Add a comment about why aout support is still here: We need it for 2013-03-19 16:57:04 +00:00
md5 use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
mdconfig use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
mdmfs Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
mknod Fix some more warnings found by clang. 2010-11-22 20:10:48 +00:00
mksnap_ffs Change file permissions for some setuid executables so they are "o+r". 2014-08-21 19:04:15 +00:00
mount Add description for the "automounted" mount flag. 2014-08-20 13:52:47 +00:00
mount_cd9660 use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
mount_fusefs mdoc: remove superfluous paragraph macros. 2014-06-23 18:40:21 +00:00
mount_msdosfs use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
mount_nfs Build mount_nfs(8) with WARNS=6. 2014-10-31 09:51:54 +00:00
mount_nullfs GC unused variables. Prefer NULL over 0 for pointers. 2013-03-05 22:41:35 +00:00
mount_udf Unbreak mount_udf by passing the correct iovec length into 2014-02-04 21:15:15 +00:00
mount_unionfs use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
nandfs mdoc: remove superfluous paragraph macro. 2012-05-17 11:29:22 +00:00
natd mdoc: remove superfluous paragraph macros. 2014-06-23 18:40:21 +00:00
newfs Refer newfs and growfs users to fsck_ffs instead of 2014-02-09 14:28:47 +00:00
newfs_msdos Use "NO NAME" as the default unnamed label. 2014-08-13 21:18:31 +00:00
newfs_nandfs use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
nfsiod
nos-tun use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
nvmecontrol use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
pfctl mdoc: remove superfluous paragraph macros. 2014-06-23 18:40:21 +00:00
pflogd pflogd does not depend on libutil 2013-01-01 18:28:21 +00:00
ping WARNS=3 and style fixes. No functionality change. 2014-10-20 00:27:40 +00:00
ping6 WARNS=3 and style fixes. No functionality change. 2014-10-20 00:27:40 +00:00
quotacheck Fix sbin/ build with a 64-bit ino_t. 2012-09-27 23:31:06 +00:00
rcorder Revert r267233 for now. PIE support needs to be reworked. 2014-08-19 15:04:32 +00:00
reboot use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
recoverdisk use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
resolvconf Add resolvconf(8) which manages resolv.conf. 2011-03-18 12:18:52 +00:00
restore When restoring a UFS dump onto a ZFS filesystem, an assertion in 2014-07-30 14:52:04 +00:00
route Kill custom in_matroute() radix mathing function removing one rte mutex lock. 2014-11-11 02:52:40 +00:00
routed Fix a typo. 2014-09-21 05:03:04 +00:00
rtsol NO_MAN= has been deprecated in favor of MAN= for some time, go ahead 2014-04-13 05:21:56 +00:00
savecore If fgets(3) fails in getbounds(), show strerror(3) if not an EOF. Also fix 2014-09-17 19:09:58 +00:00
sconfig use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
setkey Fix spelling of Camellia algorithm. While here, replace blank lines 2014-07-25 17:09:48 +00:00
shutdown Change file permissions for some setuid executables so they are "o+r". 2014-08-21 19:04:15 +00:00
spppcontrol mdoc: order prologue macros consistently by Dd/Dt/Os 2010-04-14 19:08:06 +00:00
sunlabel mdoc: fix column names, indentation, column separation within each row, and 2012-04-07 09:05:30 +00:00
swapon Do not add late flag when file= is specified because it has a bad 2014-10-10 03:20:12 +00:00
sysctl Refactor the code a little bit to reduce duplicated code. 2014-09-26 05:05:34 +00:00
tests Migrate tools/regression/sbin/ to the new tests layout. 2014-03-16 02:07:08 +00:00
tunefs Constify string pointers. 2013-05-16 21:04:56 +00:00
umount Use mount protocol version 3 by default for showmount and umount. 2014-08-16 14:56:11 +00:00
Makefile Use src.opts.mk in preference to bsd.own.mk except where we need stuff 2014-05-06 04:22:01 +00:00
Makefile.amd64 Integrate nvmecontrol(8) into the amd64 and i386 builds. 2012-09-17 21:41:38 +00:00
Makefile.arm MF tbemd: Move to using Makefile.arch to select what to build. 2010-09-13 02:25:21 +00:00
Makefile.i386 Integrate nvmecontrol(8) into the amd64 and i386 builds. 2012-09-17 21:41:38 +00:00
Makefile.inc Use src.opts.mk in preference to bsd.own.mk except where we need stuff 2014-05-06 04:22:01 +00:00
Makefile.mips MF tbemd: Move to using Makefile.arch to select what to build. 2010-09-13 02:25:21 +00:00
Makefile.pc98 MF tbemd: Move to using Makefile.arch to select what to build. 2010-09-13 02:25:21 +00:00
Makefile.sparc64 MF tbemd: Move to using Makefile.arch to select what to build. 2010-09-13 02:25:21 +00:00