FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F8.2.0_cvs 2011-02-16T16:18:46Z 2011-02-16T16:18:46Z Ken Smith kensmith@FreeBSD.org 2011-02-16T16:18:46Z urn:sha1:dec99dafe5763ba1db6950342aa80a634169c083 Approved by: re (implicit) This commit was manufactured to restore the state of the 8.2-RELEASE image. 2010-07-29T14:23:58Z Alexander Leidinger netchild@FreeBSD.org 2010-07-29T14:23:58Z urn:sha1:e04363b7c5daf25e0668f482d38ff236a6482c71 Merge linux emulation parts for video4linux support (requires a native v4l device, e.g. something which works with ports://multimedia/webcamd). 2009-09-17T11:03:37Z Marko Zec zec@FreeBSD.org 2009-09-17T11:03:37Z urn:sha1:1fe6ff92670db106ea5ead32ca781df8168d73e1 Lock the ifnet list while iterating over it. Submitted by: julian MFC after: 3 days Approved by: re (kensmith) 2009-08-31T09:46:09Z Marko Zec zec@FreeBSD.org 2009-08-31T09:46:09Z urn:sha1:962e75a7639d8b35a6e62e13a02125792c3b556f Fix a few panics in linuxulator + VIMAGE due to curvnet not being set. This change affects only options VIMAGE builds. Reviewed by: julian Approved by: re (rwatson) 2009-08-28T20:06:02Z Robert Watson rwatson@FreeBSD.org 2009-08-28T20:06:02Z urn:sha1:3ef94f2b72ac17700f8de8b8fb8d403d15c56da6 Rework global locks for interface list and index management, correcting several critical bugs, including race conditions and lock order issues: Replace the single rwlock, ifnet_lock, with two locks, an rwlock and an sxlock. Either can be held to stablize the lists and indexes, but both are required to write. This allows the list to be held stable in both network interrupt contexts and sleepable user threads across sleeping memory allocations or device driver interactions. As before, writes to the interface list must occur from sleepable contexts. Reviewed by: bz, julian Approved by: re (kib) 2009-08-01T19:26:27Z Robert Watson rwatson@FreeBSD.org 2009-08-01T19:26:27Z urn:sha1:530c006014fae95c670f4b699fef8bb93034bc6d vnet.h, we now use jails (rather than vimages) as the abstraction for virtualization management, and what remained was specific to virtual network stacks. Minor cleanups are done in the process, and comments updated to reflect these changes. Reviewed by: bz Approved by: re (vimage blanket) 2009-07-14T22:48:30Z Robert Watson rwatson@FreeBSD.org 2009-07-14T22:48:30Z urn:sha1:eddfbb763ded6b5f6777335142be9a0edab628bb (DPCPU), as suggested by Peter Wemm, and implement a new per-virtual network stack memory allocator. Modify vnet to use the allocator instead of monolithic global container structures (vinet, ...). This change solves many binary compatibility problems associated with VIMAGE, and restores ELF symbols for virtualized global variables. Each virtualized global variable exists as a "reference copy", and also once per virtual network stack. Virtualized global variables are tagged at compile-time, placing the in a special linker set, which is loaded into a contiguous region of kernel memory. Virtualized global variables in the base kernel are linked as normal, but those in modules are copied and relocated to a reserved portion of the kernel's vnet region with the help of a the kernel linker. Virtualized global variables exist in per-vnet memory set up when the network stack instance is created, and are initialized statically from the reference copy. Run-time access occurs via an accessor macro, which converts from the current vnet and requested symbol to a per-vnet address. When "options VIMAGE" is not compiled into the kernel, normal global ELF symbols will be used instead and indirection is avoided. This change restores static initialization for network stack global variables, restores support for non-global symbols and types, eliminates the need for many subsystem constructors, eliminates large per-subsystem structures that caused many binary compatibility issues both for monitoring applications (netstat) and kernel modules, removes the per-function INIT_VNET_*() macros throughout the stack, eliminates the need for vnet_symmap ksym(2) munging, and eliminates duplicate definitions of virtualized globals under VIMAGE_GLOBALS. Bump __FreeBSD_version and update UPDATING. Portions submitted by: bz Reviewed by: bz, zec Discussed with: gnn, jamie, jeff, jhb, julian, sam Suggested by: peter Approved by: re (kensmith) 2009-06-23T17:03:45Z Bjoern A. Zeeb bz@FreeBSD.org 2009-06-23T17:03:45Z urn:sha1:5736e6fb9d15b95ee15c93c75e67222183a14b1d a lot of files no longer need route.h either. Garbage collect them. While here remove now unneeded vnet.h #includes as well. 2009-06-17T15:01:01Z Bjoern A. Zeeb bz@FreeBSD.org 2009-06-17T15:01:01Z urn:sha1:ebd8672cc339e453093ce1ad874af59ca5c957aa remove the "hidden" one from vimage.h. 2009-06-15T19:01:53Z Jamie Gritton jamie@FreeBSD.org 2009-06-15T19:01:53Z urn:sha1:9ed47d01eb935541b9cafd369eb653c35cce7067 passed threads instead of curthread. Reviewed by: zec, julian Approved by: bz (mentor)