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Mark Johnston c25fabea97 Remove weighted page handling from vm_page_advise().
This was added in r51337 as part of the implementation of
madvise(MADV_DONTNEED).  Its objective was to ensure that the page daemon
would eventually reclaim other unreferenced pages (i.e., unreferenced pages
not touched by madvise()) from the active queue.

Now that the pagedaemon performs steady scanning of the active page queue,
this weighted handling is unnecessary.  Instead, always "cache" clean pages
by moving them to the head of the inactive page queue.  This simplifies the
implementation of vm_page_advise() and eliminates the fragmentation that
resulted from the distribution of pages among multiple queues.

Suggested by:	alc
Reviewed by:	alc
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D3401
2015-08-28 00:44:17 +00:00
bin sh: Fix out of bounds read when there is no ] after a [:class:]. 2015-08-25 21:55:15 +00:00
cddl Re-apply r274569. It was reverted in r276848 since that appeared to fix 2015-08-28 00:38:18 +00:00
contrib Make ncurses build with GCC 5.0 and up 2015-08-27 14:00:20 +00:00
crypto Fix OpenSSH multiple vulnerabilities by backporting three changes 2015-08-25 20:48:37 +00:00
etc Fix a conversion error in rc.d/jail 2015-08-27 20:52:41 +00:00
games Fix a typo. 2015-07-02 11:46:35 +00:00
gnu Drop a .WAIT into the list. Items later in the list than this depend 2015-08-26 02:47:11 +00:00
include Use bool rather than _Bool for C++ compatibility. 2015-08-19 18:32:12 +00:00
kerberos5 Move setting of LDFLAGS to the modules which require it actually, as 2015-08-27 17:16:18 +00:00
lib Use CFLAGS_NO_SIMD in preference to varying lists of -mno-xxxx flags. 2015-08-27 23:46:42 +00:00
libexec Upgrade libxo to 0.4.5. 2015-08-24 16:26:20 +00:00
release Remove a broken link. 2015-08-19 17:51:03 +00:00
rescue
sbin pf: Remove support for 'scrub fragment crop|drop-ovl' 2015-08-27 21:27:47 +00:00
secure Merge OpenSSL 1.0.1p. 2015-07-09 17:07:45 +00:00
share nv.h lives in sys/ as of r279439. 2015-08-28 00:12:59 +00:00
sys Remove weighted page handling from vm_page_advise(). 2015-08-28 00:44:17 +00:00
targets Roll WITHOUT_ELFTOOLCHAIN_TOOLS into WITHOUT_TOOLCHAIN 2015-08-13 17:50:47 +00:00
tests Add various tests to ensure that invalid arguments passed to mmap() 2015-08-06 16:14:29 +00:00
tools Replay r286410. Change KPI of how device drivers that provide wireless 2015-08-27 08:56:39 +00:00
usr.bin add documentation for timers that silby added in r197244, almost 6 years 2015-08-27 19:12:42 +00:00
usr.sbin die() would never return, mark it as so. 2015-08-27 18:11:00 +00:00
.arcconfig Add repository.callsign, to help arcanist figure out what repo it's 2015-07-02 22:23:52 +00:00
.arclint
COPYRIGHT
LOCKS
MAINTAINERS
Makefile Fix generation of src.conf.5 2015-07-03 06:10:09 +00:00
Makefile.inc1 Remove now unused LIBPRIVATEDIR 2015-08-24 13:46:12 +00:00
ObsoleteFiles.inc Belatedly add entries for libugidfw.so.4 to catch up with r284745. 2015-08-26 18:22:59 +00:00
README
UPDATING pf: Remove support for 'scrub fragment crop|drop-ovl' 2015-08-27 21:27:47 +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.  See build(7)
and 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.  See build(7), config(8),
and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
for more information.

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 kernel configuration files reside in the sys/<arch>/conf
sub-directory.  GENERIC is the default configuration used in release builds.
NOTES contains entries and documentation for all possible
devices, not just those commonly used.


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.

tests		Regression tests which can be run by Kyua.  See tests/README
		for additional information.

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