freebsd kernel with SKQ
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marcel 8f846e9bc4 SEEK_DATA has interesting behaviour for sparse files on ZFS. A sparse file
with 128K of random data and truncated to 800K can have SEEK_DATA return -1
when given an offset of 128K. On UFS, the SEEK_DATA returns 800K (the size
of the file). SEEK_HOLE on ZFS seems to behave the same as UFS.

To handle this, map -1 to the size of the file (`end') when lseek returns
this for either SEEK_HOLE or SEEK_DATA. When sparse files are not supported
by the file system both `hole' and `data' will now be equal to `end' and we
will treat the entire file as data. This way, the -1 return for SEEK_DATA
on ZFS will end up doing the right thing.

Reported by: gjb@

MFC after:	3 days
2014-11-12 00:10:27 +00:00
bin sh(1): Mention portability issue with shifting zero positional parameters. 2014-11-07 21:30:16 +00:00
cddl MFV r274273: 2014-11-10 08:20:21 +00:00
contrib Upgrade libxo to 0.1.5 2014-11-11 21:37:17 +00:00
crypto Merge OpenSSL 1.0.1j. 2014-10-15 19:12:05 +00:00
etc Renove faith(4) and faithd(8) from base. It looks like industry 2014-11-09 21:33:01 +00:00
games Update factor for changes to types in primes, which is a dependency. 2014-09-27 10:57:34 +00:00
gnu Change kbdb's kthr::cpu field into an int, to avoid gcc warnings about 2014-11-11 18:54:57 +00:00
include Fix the build by installing acpi_hpet.h correctly. 2014-10-24 23:25:11 +00:00
kerberos5 Fix incremental builds involving non-root users with read-only source files. 2014-09-18 14:50:21 +00:00
lib Renove faith(4) and faithd(8) from base. It looks like industry 2014-11-09 21:33:01 +00:00
libexec Add baud rate support to telnet(1) 2014-11-11 04:06:05 +00:00
release Renove faith(4) and faithd(8) from base. It looks like industry 2014-11-09 21:33:01 +00:00
rescue Add libxo, now needed by df(1). 2014-11-07 04:39:01 +00:00
sbin Kill custom in_matroute() radix mathing function removing one rte mutex lock. 2014-11-11 02:52:40 +00:00
secure Merge OpenSSL 1.0.1j. 2014-10-15 19:29:22 +00:00
share Kill custom in_matroute() radix mathing function removing one rte mutex lock. 2014-11-11 02:52:40 +00:00
sys Since r273264 the SD card detection on Raspberry Pi is reliably working and 2014-11-11 23:55:37 +00:00
tests Use PROGS instead of PROG and remove unnecessary SRCS?= assignment 2014-11-08 03:20:56 +00:00
tools Kill custom in_matroute() radix mathing function removing one rte mutex lock. 2014-11-11 02:52:40 +00:00
usr.bin SEEK_DATA has interesting behaviour for sparse files on ZFS. A sparse file 2014-11-12 00:10:27 +00:00
usr.sbin Fix whitespace. 2014-11-11 19:45:14 +00:00
.arcconfig Update the URL to the phabricator instance. 2014-08-14 16:25:43 +00:00
.arclint arc: add linting for python files 2014-06-02 00:21:42 +00:00
COPYRIGHT Bump copyright year. 2013-12-31 12:18:10 +00:00
LOCKS Explicitly require Security Officer's approval for kernel PRNG bits. 2013-09-17 14:19:05 +00:00
MAINTAINERS Remove myself from bxe(4) maintenance. 2014-11-11 16:51:00 +00:00
Makefile Revert r271159, Mis-patched the tree. 2014-09-05 14:35:34 +00:00
Makefile.inc1 Fix build race in Makefile.inc1 after r274226 by adding lib/libm__L dependency 2014-11-08 04:24:54 +00:00
ObsoleteFiles.inc Renove faith(4) and faithd(8) from base. It looks like industry 2014-11-09 21:33:01 +00:00
README
UPDATING Renove faith(4) and faithd(8) from base. It looks like industry 2014-11-09 21:33:01 +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.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

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