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freebsd-dev/sys/net
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Gleb Smirnoff f0e49f6631 Whenever flowtable lookup fails, we do route lookup and then try to 
insert flow entry. During the route lookup the critical section is
exited. It may happen, that after route lookup we will be executed
on an other CPU that already has such flowentry. Before this change
we simply freed the flowentry and returned to ip_output() with
failure.

Actually there is nothing wrong with using previously allocated
flow entry, updating it properly. Thus, make flowentry_insert()
return the new either old fle, and make use of it.

Count reuses as "collisions" and real inserts as "inserts".

Reviewed by:	adrian
Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2014-02-14 10:56:26 +00:00
..
bpf_buffer.c Changes to resolve races in bpfread() and catchpacket() that, at worst, 2012-12-10 16:14:44 +00:00
bpf_buffer.h Call bpf_jitter() before acquiring BPF global lock due to malloc() being used inside bpf_jitter. 2012-05-21 22:19:19 +00:00
bpf_filter.c
bpf_jitter.c
bpf_jitter.h
bpf_zerocopy.c After the PHYS_TO_VM_PAGE() function was de-inlined, the main reason 2012-08-05 14:11:42 +00:00
bpf_zerocopy.h - Fix trivial typo 2012-01-14 17:07:52 +00:00
bpf.c Convert the random entropy harvesting code to use a const void * pointer 2013-11-01 20:53:49 +00:00
bpf.h Style: s/SYS_EVENTHANDLER_H/_SYS_EVENTHANDLER_H_/g 2013-10-28 20:32:05 +00:00
bpfdesc.h Changes to resolve races in bpfread() and catchpacket() that, at worst, 2012-12-10 16:14:44 +00:00
bridgestp.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
bridgestp.h Move the interface media check to a taskqueue, some interfaces (usb) sleep 2012-04-20 10:06:28 +00:00
ethernet.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
fddi.h
firewire.h
flowtable.c Whenever flowtable lookup fails, we do route lookup and then try to 2014-02-14 10:56:26 +00:00
flowtable.h Whenever flowtable lookup fails, we do route lookup and then try to 2014-02-14 10:56:26 +00:00
ieee8023ad_lacp.c Simplify filling sockaddr_dl structure for if_resolvemulti() 2014-01-18 23:24:51 +00:00
ieee8023ad_lacp.h Break out the static, global LACP debug options into a per-lagg unit 2013-07-26 19:41:13 +00:00
ieee_oui.h Clean up the macros to avoid using casts. 2013-11-15 16:03:32 +00:00
if_arc.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_arcsubr.c Simplify filling sockaddr_dl structure for if_resolvemulti() 2014-01-18 23:24:51 +00:00
if_arp.h Migrate structs arpstat, icmpstat, mrtstat, pimstat and udpstat to PCPU 2013-07-09 09:50:15 +00:00
if_atm.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_atmsubr.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_bridge.c Include necessary headers that now are available due to pollution 2013-10-28 07:29:16 +00:00
if_bridgevar.h
if_clone.c Include necessary headers that now are available due to pollution 2013-10-28 07:29:16 +00:00
if_clone.h Style: s/SYS_EVENTHANDLER_H/_SYS_EVENTHANDLER_H_/g 2013-10-28 20:32:05 +00:00
if_dead.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_debug.c
if_disc.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_dl.h Simplify filling sockaddr_dl structure for if_resolvemulti() 2014-01-18 23:24:51 +00:00
if_edsc.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_ef.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_enc.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_enc.h
if_epair.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_ethersubr.c Simplify filling sockaddr_dl structure for if_resolvemulti() 2014-01-18 23:24:51 +00:00
if_faith.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_fddisubr.c Simplify filling sockaddr_dl structure for if_resolvemulti() 2014-01-18 23:24:51 +00:00
if_fwsubr.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_gif.c ANSIfy function defintions. 2013-11-15 12:12:50 +00:00
if_gif.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_gre.c Remove never used ioctls that originate from KAME. The proof 2013-11-11 05:39:42 +00:00
if_gre.h
if_iso88025subr.c Simplify filling sockaddr_dl structure for if_resolvemulti() 2014-01-18 23:24:51 +00:00
if_lagg.c Simplify filling sockaddr_dl structure for if_resolvemulti() 2014-01-18 23:24:51 +00:00
if_lagg.h Multi-queue NIC drivers and multi-port lagg tend to use the same lower 2013-12-30 01:32:17 +00:00
if_llatbl.c Back out r249318, r249320 and r249327 due to a heisenbug most 2013-05-06 16:42:18 +00:00
if_llatbl.h Remove include opt_ofed.h since OFED is unifdef'd. 2013-08-27 16:45:00 +00:00
if_llc.h
if_loop.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_media.c
if_media.h Provide forward declaration for struct ifnet. Consumers 2013-10-27 17:27:06 +00:00
if_mib.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_mib.h
if_pflog.h o Create directory sys/netpfil, where all packet filters should 2012-09-14 11:51:49 +00:00
if_pfsync.h Remove most of the remaining sysctl name list macros. They were only 2013-08-26 18:16:05 +00:00
if_sppp.h
if_spppfr.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_spppsubr.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_stf.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_stf.h
if_tap.c Teach every SIOCGIFSTATUS provider to fill in ifs->ascii anyway. 2014-01-07 15:59:33 +00:00
if_tap.h
if_tapvar.h Revert part of an earlier patch attempt that snuck in with r240938. 2012-09-25 23:41:45 +00:00
if_tun.c Teach every SIOCGIFSTATUS provider to fill in ifs->ascii anyway. 2014-01-07 15:59:33 +00:00
if_tun.h
if_types.h A major overhaul of the CARP implementation. The ip_carp.c was started 2011-12-16 12:16:56 +00:00
if_var.h In complemence to ifa_add_loopback_route() and ifa_del_loopback_route() 2013-11-05 07:36:17 +00:00
if_vlan_var.h Style: s/SYS_EVENTHANDLER_H/_SYS_EVENTHANDLER_H_/g 2013-10-28 20:32:05 +00:00
if_vlan.c Include necessary headers that now are available due to pollution 2013-10-28 07:29:16 +00:00
if.c Simplify filling sockaddr_dl structure for if_resolvemulti() 2014-01-18 23:24:51 +00:00
if.h Remove never used ioctls that originate from KAME. The proof 2013-11-11 05:39:42 +00:00
ifq.h Move all interface queue related structures, macros and definitions 2013-10-29 17:48:08 +00:00
iso88025.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
netisr_internal.h
netisr.c Fix macro name in comment. 2013-11-26 15:23:56 +00:00
netisr.h
netmap_user.h forgot to update this file in 2607000 2014-01-17 04:38:58 +00:00
netmap.h It is 2014 and we have a new version of netmap. 2014-01-06 12:53:15 +00:00
pfil.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
pfil.h Whitespace, style cleanups, and improved comments. 2013-08-24 12:03:24 +00:00
pfkeyv2.h
pfvar.h Once pf became not covered by a single mutex, many counters in it became 2014-02-14 10:05:21 +00:00
ppp_defs.h Allow certain headers to be included more easily. 2013-05-21 21:20:10 +00:00
radix_mpath.c Partially fix IPv4 interface routes deletion in RADIX_MPATH. 2014-01-06 22:36:20 +00:00
radix_mpath.h
radix.c Change semantics for rnh_lookup() function: now 2014-01-04 22:25:26 +00:00
radix.h Change semantics for rnh_lookup() function: now 2014-01-04 22:25:26 +00:00
raw_cb.c vnet.h needs to be included before raw_cb.h. Now it compiles due to 2013-10-25 19:49:03 +00:00
raw_cb.h Pass the fibnum where we need filtering of the message on the 2011-09-28 13:48:36 +00:00
raw_usrreq.c vnet.h needs to be included before raw_cb.h. Now it compiles due to 2013-10-25 19:49:03 +00:00
route.c o Revamp API between flowtable and netinet, netinet6. 2014-02-07 15:18:23 +00:00
route.h Simplify inet alias handling code: if we're adding/removing alias which 2014-01-10 12:13:55 +00:00
rtsock.c Simplify inet alias handling code: if we're adding/removing alias which 2014-01-10 12:13:55 +00:00
sff8472.h Convert #defines to enums so that the values are visible in the debugger. 2014-01-02 21:30:59 +00:00
slcompress.c
slcompress.h
vnet.c Remove identical vnet sysctl handlers, and handle CTLFLAG_VNET 2014-02-07 13:47:33 +00:00
vnet.h Fixup for r261590 (vnet sysctl handlers cleanup). 2014-02-09 08:13:17 +00:00
zlib.c Juggle some internal symbols from our antique zlib (that originally came 2013-01-06 14:59:59 +00:00
zlib.h Juggle some internal symbols from our antique zlib (that originally came 2013-01-06 14:59:59 +00:00
zutil.h