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9940277b0b
freebsd-skq/sys/net
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zec 9940277b0b Introduce a separate sx lock for protecting lists of vnet sysinit 
and sysuninit handlers.

Previously, sx_vnet, which is a lock designated for protecting
the vnet list, was (ab)used for protecting vnet sysinit / sysuninit
handler lists as well.  Holding exclusively the sx_vnet lock while
invoking sysinit and / or sysuninit handlers turned out to be
problematic, since some of the handlers may attempt to wake up
another thread and wait for it to walk over the vnet list, hence
acquire a shared lock on sx_vnet, which in turn leads to a deadlock.
Protecting vnet sysinit / sysuninit lists with a separate lock
mitigates this issue, which was first observed with
flowtable_flush() / flowtable_cleaner() in sys/net/flowtable.c.

Reviewed by:	rwatson, jhb
MFC after:	3 days
2009-08-28 22:30:55 +00:00
..
bpf_buffer.c Always embed pointer to BPF JIT function in BPF descriptor 2009-08-12 17:28:53 +00:00
bpf_buffer.h Introduce support for zero-copy BPF buffering, which reduces the 2008-03-24 13:49:17 +00:00
bpf_filter.c Fix the last missing parentheses for a return statement in bpf_filter.c. 2008-08-29 20:00:55 +00:00
bpf_jitter.c Initialize scratch memory for JIT-compiled filter when it is allocated. 2008-08-28 16:40:51 +00:00
bpf_jitter.h Fix a typo in copyrights. 2008-08-25 20:43:13 +00:00
bpf_zerocopy.c Always embed pointer to BPF JIT function in BPF descriptor 2009-08-12 17:28:53 +00:00
bpf_zerocopy.h Make sure we are clearing the ZBUF_FLAG_IMMUTABLE any time a free buffer 2008-07-05 20:11:28 +00:00
bpf.c Always embed pointer to BPF JIT function in BPF descriptor 2009-08-12 17:28:53 +00:00
bpf.h Sync DLTs with latest libpcap version. 2009-04-02 13:02:12 +00:00
bpfdesc.h Always embed pointer to BPF JIT function in BPF descriptor 2009-08-12 17:28:53 +00:00
bridgestp.c Rework global locks for interface list and index management, correcting 2009-08-23 20:40:19 +00:00
bridgestp.h Fix spelling. 2007-12-09 20:47:12 +00:00
ethernet.h Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
fddi.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
firewire.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
flowtable.c In ip_output(), the flow-table module must not try to cache L2/L3 2009-08-28 07:01:09 +00:00
flowtable.h - change the interface to flowtable_lookup so that we don't rely on 2009-08-18 20:28:58 +00:00
ieee8023ad_lacp.c Use the flowid if its available for selecting the tx port. 2009-04-30 14:25:44 +00:00
ieee8023ad_lacp.h Remove extra semicolons. 2008-03-17 01:26:44 +00:00
if_arc.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_arcsubr.c Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_arp.h
if_atm.h Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
if_atmsubr.c Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC 2009-06-05 14:55:22 +00:00
if_bridge.c When bridging LRO is causing a problem, the believe 2009-08-24 21:04:51 +00:00
if_bridgevar.h Add an option to limit the number of source MACs that can be behind a bridge 2007-11-04 08:32:27 +00:00
if_clone.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_clone.h Introduce and use a sysinit-based initialization scheme for virtual 2009-07-23 20:46:49 +00:00
if_dead.c During if_detach(), invoke if_dead() to set the ifnet's function 2009-04-23 11:51:53 +00:00
if_disc.c Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
if_dl.h
if_edsc.c
if_ef.c Rather than using IFNET_RLOCK() when iterating over (and modifying) the 2009-08-23 21:00:21 +00:00
if_enc.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_enc.h Increase statistic counters for enc0 interface when enabled 2008-08-12 09:05:01 +00:00
if_epair.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_ethersubr.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_faith.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_fddisubr.c Break at_ifawithnet() into two variants: 2009-06-24 10:32:44 +00:00
if_fwsubr.c Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_gif.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_gif.h Remove unused VNET_SET() and related macros; only VNET_GET() is 2009-07-16 21:13:04 +00:00
if_gre.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_gre.h Add support for the optional key in the GRE header. 2008-06-20 17:26:34 +00:00
if_iso88025subr.c Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
if_lagg.c Use the flowid if its available for selecting the tx port. 2009-04-30 14:25:44 +00:00
if_lagg.h Change if_output to take a struct route as its fourth argument in order 2009-04-16 20:30:28 +00:00
if_llatbl.c Use locks specific to the lltable code, rather than borrow the ifnet 2009-08-25 09:52:38 +00:00
if_llatbl.h Use locks specific to the lltable code, rather than borrow the ifnet 2009-08-25 09:52:38 +00:00
if_llc.h
if_loop.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_media.c
if_media.h Implementation of the upcoming Wireless Mesh standard, 802.11s, on the 2009-07-11 15:02:45 +00:00
if_mib.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_mib.h
if_sppp.h
if_spppfr.c
if_spppsubr.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_stf.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_stf.h
if_tap.c Change the type of uio_resid member of struct uio from int to ssize_t. 2009-06-25 18:46:30 +00:00
if_tap.h Add new TAPGIFNAME tap(4) character device ioctl. This is a 2008-09-08 22:43:55 +00:00
if_tapvar.h
if_tun.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
if_tun.h
if_types.h Remove IPX over IP tunneling support, which allows IPX routing over IP 2007-06-13 14:01:43 +00:00
if_var.h Make if_grow static -- it's not used outside of if.c, and with the 2009-08-24 12:52:05 +00:00
if_vlan_var.h
if_vlan.c Rework global locks for interface list and index management, correcting 2009-08-23 20:40:19 +00:00
if.c Add IFNET_HOLD reserved pointer value for the ifindex ifnet array, 2009-08-26 11:13:10 +00:00
if.h Manage vnets via the jail system. If a jail is given the boolean 2009-06-15 18:59:29 +00:00
iso88025.h Switch cmd argument to u_long. This matches what if_ethersubr.c does and 2009-06-21 10:29:31 +00:00
netisr.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
netisr.h Update epair(4) to the new netisr implementation and polish 2009-07-26 12:20:07 +00:00
pfil.c A few locking fixes and cleanups to pfil hook registration, 2008-12-16 17:03:22 +00:00
pfil.h Make the rmlock(9) interface a bit more like the rwlock(9) interface: 2009-05-29 10:52:37 +00:00
pfkeyv2.h Added support for NAT-Traversal (RFC 3948) in IPsec stack. 2009-06-12 15:44:35 +00:00
ppp_defs.h
radix_mpath.c Extend route command: 2009-04-14 23:05:36 +00:00
radix_mpath.h When RADIX_MPATH is enabled, the route selection is not rotating 2008-05-30 09:34:35 +00:00
radix.c remove assertion checks for now - ipfw uses its own lock for protecting its radix tree instance 2008-12-16 11:01:36 +00:00
radix.h - convert radix node head lock from mutex to rwlock 2008-12-07 21:15:43 +00:00
raw_cb.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
raw_cb.h Remove unused VNET_SET() and related macros; only VNET_GET() is 2009-07-16 21:13:04 +00:00
raw_usrreq.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
route.c Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 2009-08-01 19:26:27 +00:00
route.h Collect all VIMAGE_GLOBALS variables in one place. 2009-06-22 15:07:12 +00:00
rtsock.c In ip_output(), the flow-table module must not try to cache L2/L3 2009-08-28 07:01:09 +00:00
slcompress.c
slcompress.h
vnet.c Introduce a separate sx lock for protecting lists of vnet sysinit 2009-08-28 22:30:55 +00:00
vnet.h Make VNET_DEBUG a standalone compile-time option, i.e. decouple it from 2009-08-14 22:41:39 +00:00
zlib.c
zlib.h