From bc29160df3d0b3a65d9b85a63a4589f1f9652e6b Mon Sep 17 00:00:00 2001 From: Marko Zec Date: Mon, 8 Jun 2009 17:15:40 +0000 Subject: Introduce an infrastructure for dismantling vnet instances. Vnet modules and protocol domains may now register destructor functions to clean up and release per-module state. The destructor mechanisms can be triggered by invoking "vimage -d", or a future equivalent command which will be provided via the new jail framework. While this patch introduces numerous placeholder destructor functions, many of those are currently incomplete, thus leaking memory or (even worse) failing to stop all running timers. Many of such issues are already known and will be incrementaly fixed over the next weeks in smaller incremental commits. Apart from introducing new fields in structs ifnet, domain, protosw and vnet_net, which requires the kernel and modules to be rebuilt, this change should have no impact on nooptions VIMAGE builds, since vnet destructors can only be called in VIMAGE kernels. Moreover, destructor functions should be in general compiled in only in options VIMAGE builds, except for kernel modules which can be safely kldunloaded at run time. Bump __FreeBSD_version to 800097. Reviewed by: bz, julian Approved by: rwatson, kib (re), julian (mentor) --- sys/netinet/udp_usrreq.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'sys/netinet/udp_usrreq.c') diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c index 33be911b0781..fdc96f4501ec 100644 --- a/sys/netinet/udp_usrreq.c +++ b/sys/netinet/udp_usrreq.c @@ -221,6 +221,20 @@ udp_discardcb(struct udpcb *up) uma_zfree(V_udpcb_zone, up); } +#ifdef VIMAGE +void +udp_destroy(void) +{ + INIT_VNET_INET(curvnet); + + hashdestroy(V_udbinfo.ipi_hashbase, M_PCB, + V_udbinfo.ipi_hashmask); + hashdestroy(V_udbinfo.ipi_porthashbase, M_PCB, + V_udbinfo.ipi_porthashmask); + INP_INFO_LOCK_DESTROY(&V_udbinfo); +} +#endif + /* * Subroutine of udp_input(), which appends the provided mbuf chain to the * passed pcb/socket. The caller must provide a sockaddr_in via udp_in that -- cgit v1.2.3