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freebsd/sys/netinet
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Robert Watson 2d9cfabad4 Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 
in_ifaddrhead and INADDR_HASH address lists.

Previously, these lists were used unsynchronized as they were effectively
never changed in steady state, but we've seen increasing reports of
writer-writer races on very busy VPN servers as core count has gone up
(and similar configurations where address lists change frequently and
concurrently).

For the time being, use rwlocks rather than rmlocks in order to take
advantage of their better lock debugging support.  As a result, we don't
enable ip_input()'s read-locking of INADDR_HASH until an rmlock conversion
is complete and a performance analysis has been done.  This means that one
class of reader-writer races still exists.

MFC after:      6 weeks
Reviewed by:    bz
2009-06-25 11:52:33 +00:00
..
ipfw - fix dummynet 'fast' mode for WF2Q case. 2009-06-24 22:57:07 +00:00
libalias What's the point of adjusting a checksum if we are going to toss the 2009-04-11 15:26:31 +00:00
accf_data.c Rework socket upcalls to close some races with setup/teardown of upcalls. 2009-06-01 21:17:03 +00:00
accf_dns.c Rework socket upcalls to close some races with setup/teardown of upcalls. 2009-06-01 21:17:03 +00:00
accf_http.c Rework socket upcalls to close some races with setup/teardown of upcalls. 2009-06-01 21:17:03 +00:00
icmp6.h Add MLDv2 prototypes and defines. 2009-04-29 10:20:17 +00:00
icmp_var.h Update stats in struct icmpstat and icmp6stat using four new 2009-04-12 13:22:33 +00:00
if_atm.c This main goals of this project are: 2008-12-15 06:10:57 +00:00
if_atm.h
if_ether.c Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 2009-06-25 11:52:33 +00:00
if_ether.h remove dependency on net/if.h of this header 2009-02-16 15:07:40 +00:00
igmp_var.h Update stats in struct igmpstat using two new macros: 2009-04-12 13:41:13 +00:00
igmp.c Modify most routines returning 'struct ifaddr *' to return references 2009-06-23 20:19:09 +00:00
igmp.h These are no longer referenced in the tree, so can be safely removed. 2009-06-10 18:12:15 +00:00
in_cksum.c
in_gif.c Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 2009-06-25 11:52:33 +00:00
in_gif.h
in_mcast.c Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 2009-06-25 11:52:33 +00:00
in_pcb.c Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 2009-06-25 11:52:33 +00:00
in_pcb.h After cleaning up rt_tables from vnet.h and cleaning up opt_route.h 2009-06-23 17:03:45 +00:00
in_proto.c Add the explicit include of vimage.h to another five .c files still 2009-06-17 12:44:11 +00:00
in_rmx.c After cleaning up rt_tables from vnet.h and cleaning up opt_route.h 2009-06-23 17:03:45 +00:00
in_systm.h Use uint32_t instead of n_long and n_time, and uint16_t instead of n_short. 2009-02-13 15:14:43 +00:00
in_var.h Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 2009-06-25 11:52:33 +00:00
in.c Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 2009-06-25 11:52:33 +00:00
in.h - Rename IP_NONLOCALOK IP socket option to IP_BINDANY, to be more consistent 2009-06-01 10:30:00 +00:00
ip6.h Start removing IPv6 Type 0 Routing header code. 2009-03-03 13:12:12 +00:00
ip_carp.c Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 2009-06-25 11:52:33 +00:00
ip_carp.h Update stats in struct carpstats using two new macros: CARPSTATS_ADD() 2009-04-12 14:19:37 +00:00
ip_divert.c Modify most routines returning 'struct ifaddr *' to return references 2009-06-23 20:19:09 +00:00
ip_divert.h
ip_dummynet.h - fix dummynet 'fast' mode for WF2Q case. 2009-06-24 22:57:07 +00:00
ip_ecn.c
ip_ecn.h
ip_encap.c
ip_encap.h
ip_fastfwd.c Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
ip_fw.h Close long existed race with net.inet.ip.fw.one_pass = 0: 2009-06-09 21:27:11 +00:00
ip_gre.c
ip_gre.h
ip_icmp.c Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 2009-06-25 11:52:33 +00:00
ip_icmp.h Use uint32_t instead of n_long and n_time, and uint16_t instead of n_short. 2009-02-13 15:14:43 +00:00
ip_id.c Rather than using hidden includes (with cicular dependencies), 2008-12-02 21:37:28 +00:00
ip_input.c Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 2009-06-25 11:52:33 +00:00
ip_ipsec.c Only four out of nine arguments for ip_ipsec_output() are actually used. 2009-06-05 23:53:17 +00:00
ip_ipsec.h Only four out of nine arguments for ip_ipsec_output() are actually used. 2009-06-05 23:53:17 +00:00
ip_mroute.c Modify most routines returning 'struct ifaddr *' to return references 2009-06-23 20:19:09 +00:00
ip_mroute.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
ip_options.c Modify most routines returning 'struct ifaddr *' to return references 2009-06-23 20:19:09 +00:00
ip_options.h Add function ip_checkrouteralert(), which will be used 2009-03-04 02:51:22 +00:00
ip_output.c Modify most routines returning 'struct ifaddr *' to return references 2009-06-23 20:19:09 +00:00
ip_var.h Add the explicit include of vimage.h to another five .c files still 2009-06-17 12:44:11 +00:00
ip.h Use uint32_t instead of n_long and n_time, and uint16_t instead of n_short. 2009-02-13 15:14:43 +00:00
pim_var.h Update stats in struct pimstat using two new macros: PIMSTAT_ADD() 2009-04-12 14:06:26 +00:00
pim.h
raw_ip.c Add a new global rwlock, in_ifaddr_lock, which will synchronize use of the 2009-06-25 11:52:33 +00:00
sctp_asconf.c Code from the hack-session known as the IETF (and a 2008-12-06 13:19:54 +00:00
sctp_asconf.h Code from the hack-session known as the IETF (and a 2008-12-06 13:19:54 +00:00
sctp_auth.c - Cleanup checksum code. 2009-02-03 11:04:03 +00:00
sctp_auth.h Code from the hack-session known as the IETF (and a 2008-12-06 13:19:54 +00:00
sctp_bsd_addr.c Add missing address lock when we look at the ifa list 2009-04-14 19:20:27 +00:00
sctp_bsd_addr.h
sctp_cc_functions.c
sctp_cc_functions.h
sctp_constants.h Fixes several PR-SCTP releated bugs. 2009-03-14 13:42:13 +00:00
sctp_crc32.c repository sync to multi-OS repo ... spaceing change 2009-05-07 16:43:49 +00:00
sctp_crc32.h This commit fixes the issue with alias_sctp.c. No 2009-02-14 11:34:57 +00:00
sctp_header.h Add the add-stream capability. Still needs more 2009-02-20 15:03:54 +00:00
sctp_indata.c Changes to the NR-Sack code so that: 2009-06-17 12:34:56 +00:00
sctp_indata.h Code from the hack-session known as the IETF (and a 2008-12-06 13:19:54 +00:00
sctp_input.c Changes to the NR-Sack code so that: 2009-06-17 12:34:56 +00:00
sctp_input.h
sctp_lock_bsd.h
sctp_os_bsd.h After r193232 rt_tables in vnet.h are no longer indirectly dependent on 2009-06-08 19:57:35 +00:00
sctp_os.h
sctp_output.c Changes to the NR-Sack code so that: 2009-06-17 12:34:56 +00:00
sctp_output.h Fix the add stream feature of strm-reset to really work: 2009-02-27 20:54:45 +00:00
sctp_pcb.c Adds missing sysctl to manage the vtag_time_wait time. This will 2009-05-30 11:14:41 +00:00
sctp_pcb.h - Cleanup checksum code. 2009-02-03 11:04:03 +00:00
sctp_peeloff.c
sctp_peeloff.h
sctp_structs.h add an llentry to struct route{_in6} to allow it to be passed around with 2009-04-15 20:34:19 +00:00
sctp_sysctl.c Adds missing sysctl to manage the vtag_time_wait time. This will 2009-05-30 11:14:41 +00:00
sctp_sysctl.h Adds missing sysctl to manage the vtag_time_wait time. This will 2009-05-30 11:14:41 +00:00
sctp_timer.c Fixes several PR-SCTP releated bugs. 2009-03-14 13:42:13 +00:00
sctp_timer.h
sctp_uio.h Make sctp_uio user to kernel structure match the 2009-05-30 10:50:40 +00:00
sctp_usrreq.c Many bug fixes (from the IETF hack-fest): 2009-04-04 11:43:32 +00:00
sctp_var.h Fixes several PR-SCTP releated bugs. 2009-03-14 13:42:13 +00:00
sctp.h Changes to the NR-Sack code so that: 2009-06-17 12:34:56 +00:00
sctputil.c Fix a small memory leak from the nr-sack code - the mapping array 2009-05-30 10:56:27 +00:00
sctputil.h Fixes several PR-SCTP releated bugs. 2009-03-14 13:42:13 +00:00
tcp_debug.c Remove the "The option TCPDEBUG requires option INET." requirement. 2009-06-10 10:39:41 +00:00
tcp_debug.h Use uint32_t instead of n_long and n_time, and uint16_t instead of n_short. 2009-02-13 15:14:43 +00:00
tcp_fsm.h
tcp_hostcache.c After cleaning up rt_tables from vnet.h and cleaning up opt_route.h 2009-06-23 17:03:45 +00:00
tcp_hostcache.h Add an essential .h file that skipped from the last commit (r185419). 2008-11-28 23:39:25 +00:00
tcp_input.c Modify most routines returning 'struct ifaddr *' to return references 2009-06-23 20:19:09 +00:00
tcp_lro.c
tcp_lro.h
tcp_offload.c After cleaning up rt_tables from vnet.h and cleaning up opt_route.h 2009-06-23 17:03:45 +00:00
tcp_offload.h
tcp_output.c Trim extra sets of ()'s. 2009-06-16 19:00:48 +00:00
tcp_reass.c Remove comment about moving tcp_reass() to its own file named tcp_reass.c, 2009-05-25 14:51:47 +00:00
tcp_sack.c Update stats in struct tcpstat using two new macros, TCPSTAT_ADD() and 2009-04-11 22:07:19 +00:00
tcp_seq.h
tcp_subr.c Add explicit includes for jail.h to the files that need them and 2009-06-17 15:01:01 +00:00
tcp_syncache.c Introduce an infrastructure for dismantling vnet instances. 2009-06-08 17:15:40 +00:00
tcp_syncache.h Introduce an infrastructure for dismantling vnet instances. 2009-06-08 17:15:40 +00:00
tcp_timer.c Trim extra sets of ()'s. 2009-06-16 19:00:48 +00:00
tcp_timer.h
tcp_timewait.c Introduce an infrastructure for dismantling vnet instances. 2009-06-08 17:15:40 +00:00
tcp_usrreq.c Make callers to in6_selectsrc() and in6_pcbladdr() pass in memory 2009-06-23 22:08:55 +00:00
tcp_var.h - Change members of tcpcb that cache values of ticks from int to u_int: 2009-06-16 18:58:50 +00:00
tcp.h
tcpip.h
toedev.h
udp_usrreq.c Added support for NAT-Traversal (RFC 3948) in IPsec stack. 2009-06-12 15:44:35 +00:00
udp_var.h Added support for NAT-Traversal (RFC 3948) in IPsec stack. 2009-06-12 15:44:35 +00:00
udp.h Added support for NAT-Traversal (RFC 3948) in IPsec stack. 2009-06-12 15:44:35 +00:00
vinet.h V_irtualize flowtable state. 2009-06-22 21:19:24 +00:00