Commit Graph

11 Commits

Author SHA1 Message Date
Tom Rhodes
ce66ddb763 s/filesystem/file system/g as discussed on -developers 2002-08-21 18:11:48 +00:00
Kirk McKusick
1c85e6a35d This commit adds basic support for the UFS2 filesystem. The UFS2
filesystem expands the inode to 256 bytes to make space for 64-bit
block pointers. It also adds a file-creation time field, an ability
to use jumbo blocks per inode to allow extent like pointer density,
and space for extended attributes (up to twice the filesystem block
size worth of attributes, e.g., on a 16K filesystem, there is space
for 32K of attributes). UFS2 fully supports and runs existing UFS1
filesystems. New filesystems built using newfs can be built in either
UFS1 or UFS2 format using the -O option. In this commit UFS1 is
the default format, so if you want to build UFS2 format filesystems,
you must specify -O 2. This default will be changed to UFS2 when
UFS2 proves itself to be stable. In this commit the boot code for
reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c)
as there is insufficient space in the boot block. Once the size of the
boot block is increased, this code can be defined.

Things to note: the definition of SBSIZE has changed to SBLOCKSIZE.
The header file <ufs/ufs/dinode.h> must be included before
<ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and
ufs_lbn_t.

Still TODO:
Verify that the first level bootstraps work for all the architectures.
Convert the utility ffsinfo to understand UFS2 and test growfs.
Add support for the extended attribute storage. Update soft updates
to ensure integrity of extended attribute storage. Switch the
current extended attribute interfaces to use the extended attribute
storage. Add the extent like functionality (framework is there,
but is currently never used).

Sponsored by: DARPA & NAI Labs.
Reviewed by:	Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
Warner Losh
0638cc1a39 o __P removal.
o ansi function definitions.
o main prototype removal
o unifdef __STDC__
2002-03-21 13:10:52 +00:00
Jeroen Ruigrok van der Werven
1552a9dbad Remove unused include. 2000-05-01 20:20:05 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Philippe Charnier
c27b7bad4a Do not dot terminate SEE ALSO list. Add rcsid, remove unused #includes. Err(3)
messages should start with a lowercase letter.
1998-06-30 06:18:44 +00:00
Andrey A. Chernov
545cda7db5 Remove srandomdev fallback 1997-06-14 00:17:53 +00:00
Philippe Charnier
c9ea311a26 Add Id. Staticize usage function. Typo in usage string. 1997-06-11 07:18:18 +00:00
Guido van Rooij
e2bb969ac3 Get rid of __progname. I thought I already did that... 1997-03-26 19:07:54 +00:00
Andrey A. Chernov
c59856210e Include missing <time.h>
Add missing RNG initialization
Use srandomdev() for RNG initialization
1997-03-24 15:51:11 +00:00
Guido van Rooij
8f89943eda Add generation number randomization. Newly created filesystems wil now
automatically have random generation numbers. The kenel way of handling those
also changed. Further it is advised to run fsirand on all your nfs exported
filesystems. the code is mostly copied from OpenBSD, with the randomization
chanegd to use /dev/urandom
Reviewed by:	Garrett
Obtained from: OpenBSD
1997-03-23 20:08:22 +00:00