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KATO Takenori 81bca6ddae Clustered read and write are switched at mount-option level.
1. Clustered I/O is switched by the MNT_NOCLUSTERR and MNT_NOCLUSTERW
   bits of the mnt_flag.  The sysctl variables, vfs.foo.doclusterread
   and vfs.foo.doclusterwrite are deleted.  Only mount option can
   control clustered I/O from userland.
2. When foofs_mount mounts block device, foofs_mount checks D_CLUSTERR
   and D_CLUSTERW bits of the d_flags member in the block device switch
   table.  If D_NOCLUSTERR / D_NOCLUSTERW are set, MNT_NOCLUSTERR /
   MNT_NOCLUSTERW bits will be set.  In this case, MNT_NOCLUSTERR and
   MNT_NOCLUSTERW cannot be cleared from userland.
3. Vnode driver disables both clustered read and write.
4. Union filesystem disables clutered write.

Reviewed by:	bde
1997-09-27 13:40:20 +00:00
bin environmental -> environment. 1997-09-18 06:55:21 +00:00
contrib Polish message catalogs for vi. 1997-09-22 23:14:37 +00:00
crypto FreeBSD's original passwd helper is needed here. 1997-09-21 17:37:08 +00:00
eBones Remove some bogus malloc family declarations. 1997-07-13 23:45:34 +00:00
etc Set `crt' by default to make mail(1) happy. 1997-09-26 08:28:19 +00:00
games Remove bogus declaration of calloc() that broke the build. Test, folks, 1997-09-26 06:25:42 +00:00
gnu _G_VTABLE_LABLE_PREFIX is different between ELF and a.out 1997-09-20 09:58:49 +00:00
include Oops, fix typo in istype definition 1997-09-27 04:30:50 +00:00
kerberos5 Initial import of the new kerberosIV Makefiles. 1997-09-24 20:37:15 +00:00
kerberosIV Initial import of the new kerberosIV Makefiles. 1997-09-24 20:37:15 +00:00
lib Use revived __maskrune for digittoint 1997-09-27 04:34:35 +00:00
libexec Many places in the code NULL is used in integer context, where 1997-09-18 14:08:40 +00:00
lkm Add example for IPFIREWALL_DEFAULT_TO_ACCEPT 1997-09-10 04:19:07 +00:00
release Add (ick) -ldes to the boot floppy so that ppp can link again. 1997-09-27 00:33:48 +00:00
sbin Spell out a few things for the media options. 1997-09-27 02:55:39 +00:00
secure Teach libdescrypt about elf builds. 1997-09-05 12:21:22 +00:00
share Update documentation for the 'ex' driver to indicate that it supports 1997-09-26 17:16:52 +00:00
sys Clustered read and write are switched at mount-option level. 1997-09-27 13:40:20 +00:00
tools A little gadget to dump the contents of the vfs name cache. 1997-09-04 08:28:55 +00:00
usr.bin Translated too much of it. 1997-09-27 10:31:27 +00:00
usr.sbin #define RECON_ENVOKED as 4 (not 3, like RECON_UNKNOWN) 1997-09-26 00:23:36 +00:00
COPYRIGHT This is the official 4.4 Lite copyright. 1994-09-11 07:53:28 +00:00
Makefile When making make, do cleandir *before* objdir or we'll end 1997-09-26 09:31:41 +00:00
README Note that /etc is not installed by world target either. 1997-08-09 14:36:20 +00:00

This is the top level of the FreeBSD source directory.  This file
was last revised on: $Id: README,v 1.10 1997/02/23 09:18:39 peter Exp $

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 and the contents of /etc.  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 with config(8) is a somewhat more involved process,
documentation for which can be found at:
   http://www.freebsd.org/handbook/kernelconfig.html
And in the config(8) man page.

The sample kernel configuration files reside in the sys/i386/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 LINT contains entries for all possible devices, not
just those commonly used, and is meant more as a general reference
than an actual kernel configuration file (a kernel built from it
wouldn't even run).


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

contrib		Packages contributed by 3rd parties.

eBones		Kerberos package - NOT FOR EXPORT!

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.

lib		System libraries.

libexec		System daemons.

lkm		Loadable Kernel Modules.

release		Release building Makefile & associated tools.

sbin		System commands.

secure		DES and DES-related utilities - NOT FOR EXPORT!

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/handbook/synching.html