freebsd kernel with SKQ
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lstewart bf49d6a9f9 - Rework the underlying ALQ storage to be a circular buffer, which amongst other
things allows variable length messages to be easily supported.

- Extend KPI with alq_writen() and alq_getn() to support variable length
  messages, which is enabled at ALQ creation time depending on the
  arguments passed to alq_open(). Also add variants of alq_open() and
  alq_post() that accept a flags argument. The KPI is still fully
  backwards compatible and shouldn't require any change in ALQ consumers
  unless they wish to utilise the new features.

- Introduce the ALQ_NOACTIVATE and ALQ_ORDERED flags to allow ALQ consumers
  to have more control over IO scheduling and resource acquisition
  respectively.

- Strengthen invariants checking.

- Document ALQ changes in ALQ(9) man page.

Sponsored by:	FreeBSD Foundation
Reviewed by:	gnn, jeff, rpaulo, rwatson
MFC after:	1 month
2010-04-26 13:48:22 +00:00
bin sh: Use stalloc for arith variable names. 2010-04-25 20:43:19 +00:00
cddl Refine previous partial merge of OpenSolaris onnv revision 9396:f41cf682d0d3. 2010-04-05 18:27:58 +00:00
contrib MFV of tzdata2010i, r206865 2010-04-19 20:59:39 +00:00
crypto Enhance r199804 by marking the daemonised child as immune to OOM instead 2010-04-08 12:07:40 +00:00
etc Change usb devd events from fake attach to a notify. The ugen device is not a 2010-04-21 21:51:14 +00:00
games Sync fortunes with other *BSDs 2010-03-31 18:21:25 +00:00
gnu Make this directory more regular. Since it is one we control, use the 2010-04-14 20:31:06 +00:00
include Move realpath(3) prototype to a POSIX section. 2010-04-21 16:38:37 +00:00
kerberos5 Fix a typo. 2010-01-09 18:53:03 +00:00
lib unlinkat(2): unlinkat(AT_REMOVEDIR) fails with ENOTEMPTY like rmdir() 2010-04-25 13:55:52 +00:00
libexec Forgot to initialize the debug variable. 2010-04-01 13:16:32 +00:00
release Add gpart and glabel to the release CD mfsroot. Even if sysinstall 2010-04-20 01:12:23 +00:00
rescue Remove libulog from the bootstrap again. 2010-01-21 16:56:27 +00:00
sbin - Temporarily lower WARNS until I fix alignment warnings on sparc64. 2010-04-24 07:59:45 +00:00
secure Regenerate manual pages for OpenSSL 0.9.8n. 2010-04-01 15:37:38 +00:00
share - Rework the underlying ALQ storage to be a circular buffer, which amongst other 2010-04-26 13:48:22 +00:00
sys - Rework the underlying ALQ storage to be a circular buffer, which amongst other 2010-04-26 13:48:22 +00:00
tools Add a TestFloat based test suite for floating-point implementations 2010-04-24 12:11:41 +00:00
usr.bin Make hash, type and ulimit available via execve(). 2010-04-25 17:38:53 +00:00
usr.sbin - Merge soft-updates journaling from projects/suj/head into head. This 2010-04-24 07:05:35 +00:00
COPYRIGHT Happy New Year 2010! :-) 2009-12-31 10:00:37 +00:00
LOCKS Update LOCKS syntax. 2008-06-05 19:47:58 +00:00
MAINTAINERS Add a comment to MAINTAINERS indicating that sbin/routed is in fact 2010-04-10 12:29:09 +00:00
Makefile For those of us mere mortals who do not aspire to the lofty heights 2010-03-18 18:58:17 +00:00
Makefile.inc1 - Take libinstall.a out of pkg_install and make it a proper shared library. 2010-04-23 11:07:43 +00:00
ObsoleteFiles.inc o) Use inline functions to access coprocessor 0 registers rather than external 2010-04-17 01:17:31 +00:00
README
UPDATING WITH_CTF can now be specified in src.conf (not recommended, there 2010-04-02 06:55:31 +00:00

This is the top level of the FreeBSD source directory.  This file
was last revised on:
$FreeBSD$

For copyright information, please see the file COPYRIGHT in this
directory (additional copyright information also exists for some
sources in this tree - please see the specific source directories for
more information).

The Makefile in this directory supports a number of targets for
building components (or all) of the FreeBSD source tree, the most
commonly used one being ``world'', which rebuilds and installs
everything in the FreeBSD system from the source tree except the
kernel, the kernel-modules and the contents of /etc.  The ``world''
target should only be used in cases where the source tree has not
changed from the currently running version.  See:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
for more information, including setting make(1) variables.

The ``buildkernel'' and ``installkernel'' targets build and install
the kernel and the modules (see below).  Please see the top of
the Makefile in this directory for more information on the
standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process, documentation
for which can be found at:
   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
And in the config(8) man page.
Note: If you want to build and install the kernel with the
``buildkernel'' and ``installkernel'' targets, you might need to build
world before.  More information is available in the handbook.

The sample kernel configuration files reside in the sys/<arch>/conf
sub-directory (assuming that you've installed the kernel sources), the
file named GENERIC being the one used to build your initial installation
kernel.  The file NOTES contains entries and documentation for all possible
devices, not just those commonly used.  It is the successor of the ancient
LINT file, but in contrast to LINT, it is not buildable as a kernel but a
pure reference and documentation file.


Source Roadmap:
---------------
bin		System/user commands.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

games		Amusements.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

sys		Kernel sources.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.


For information on synchronizing your source tree with one or more of
the FreeBSD Project's development branches, please see:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html