Commit Graph

31 Commits

Author SHA1 Message Date
Matthew Dillon
5941e412ca Add a caching option to dump. Use -C. Note that NetBSD has a caching option
called -r but it takes 512 byte blocks instead of megabytes, and I felt a
megabytes specification would be far more useful so I did not use the same
option character.

This will *greatly* improve dump performance at the cost of possibly
missing filesystem changes that occur between passes, and does a fairly
good job making up for the loss of buffered block devices.  Caching is disabled
by default to retain historical behavior.

In tests, dump performance improved by about 40% when dumping / or /usr.

Beware that dump forks and the cache may wind up being larger then you
specify, but a more complex shared memory implementation would not produce
results that are all that much better so I kept it simple for now.

MFC after:	3 days
2003-01-13 19:42:41 +00:00
Kirk McKusick
6bfd0bdc80 Correct the estimated block count calculated by dump to account
for the minimal amount of space used by a snapshot.

Sponsored by:   DARPA & NAI Labs.
2002-12-03 05:12:53 +00:00
Kirk McKusick
69becf4a5e Properly handle UFS2 sparsely allocated inodes. The UFS2 filesystem
only preallocates a small number of inodes. The dump program tries
to scan through all the allocated inodes on a filesystem which
causes bad behavior if they have never been allocated. Thus dump
must calculate the set of inodes that have actually been allocated
and scan only those inodes.

Sponsored by:   DARPA & NAI Labs.
2002-12-03 05:10:07 +00:00
Kirk McKusick
be5b142531 Mark snapshots so that dump will dump them as zero length
regular files rather than trying to interpret the snapshot.

Sponsored by:   DARPA & NAI Labs.
2002-11-30 23:28:22 +00:00
Mike Barcroft
89fdc4e117 Use the standardized CHAR_BIT constant instead of NBBY in userland. 2002-09-25 04:06:37 +00:00
Philippe Charnier
7fed38d0a0 Replace various spelling with FALLTHROUGH which is lint()able 2002-08-25 13:10:45 +00:00
Tom Rhodes
ce66ddb763 s/filesystem/file system/g as discussed on -developers 2002-08-21 18:11:48 +00:00
Kirk McKusick
fb36a3d847 Change utimes to set the file creation time (for filesystems that
support creation times such as UFS2) to the value of the
modification time if the value of the modification time is older
than the current creation time. See utimes(2) for further details.

Sponsored by:	DARPA & NAI Labs.
2002-07-17 02:03:19 +00:00
Ian Dowse
7680e41ce2 Oops, the previous revision (1.22) introduced a potential alignment
issue, since the MAXBSIZE-sized buffers are accessed as arrays of
block pointers, but were declared as char[] arrays. Use a union to
avoid this, which also makes a number of casts unnecessary.

Pointed out by:	bde
Reviewed by:		bde
2002-07-08 23:53:21 +00:00
Ian Dowse
1e0276afb3 Use a fixed MAXBSIZE-size auto array instead of a static pointer
to a malloc'd buffer in dmpindir() and dirindir(). These functions
recursively call themselves to handle deeper levels of indirect
blocks, so a single static buffer was not suitable.

Bug tracked down by:	Don Lewis <dl-freebsd@catspoiler.org>
Approach suggested by:	bde
2002-07-08 01:25:54 +00:00
Ian Dowse
617dbd3c84 Replace the use of %qd with intmax_t/%jd and fix a number of -Wall
and -Wformat warnings:
 o Include timeconv.h for the time conversion functions.
 o Remove unused variables.
 o Correct a few cases where %d was used when printing longs.
2002-07-08 00:29:23 +00:00
Ian Dowse
325167c3a5 Fix some printf format errors.
Submitted by:	Don Lewis <dl-freebsd@catspoiler.org>
2002-07-07 12:30:20 +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
Poul-Henning Kamp
d266a28647 s/daddr_t/ufs_daddr_t/g
This should fix the issues which cropped up after daddr_t grew up.

Sponsored by:	DARPA & NAI Labs.
2002-06-06 19:59:46 +00:00
Warner Losh
2db673ab00 o remove __P
o Use ANSI function definitions
o unifdef -D__STDC__
2002-03-20 22:49:40 +00:00
David E. O'Brien
016298551c Files in subdirectories of directories that have the nodump flag set
are sometimes incorrectly being dumped.

The problem arises because the subdirectory only gets its entry
cleared from usedinomap if it is also present in dumpinomap, and it is
the absence of a directory in usedinomap that internally indicates
that the directory is under the effects of UF_NODUMP (either directly
or inherited).

PR:		32414
Submitted by:	David C Lawrence <tale@dd.org>
2001-12-05 20:42:52 +00:00
Ian Dowse
d2334e27e9 Zap a number of #ifdef sunos blocks, and all of the `register'
keywords.
2001-11-17 00:06:55 +00:00
Mike Heffner
be1bf707c9 Convert two instances of a lseek()+read() combination to a pread().
PR:		bin/17640
MFC after:	2 weeks
2001-07-01 04:46:20 +00:00
Jordan K. Hubbard
2c8094f344 Fix bogon with the nodump flag.
Submitted by:	Dima Dorfman <dima@unixfreak.org>
2001-04-19 01:39:27 +00:00
David E. O'Brien
801382fa98 Support inheritance of the "nodump" flag down a hierarchy.
Submitted by:	Dima Dorfman <dima@unixfreak.org>
Obtained from:	NetBSD
2001-03-03 11:35:50 +00:00
Warner Losh
37736675d1 Add include of errno.h where needed, remove extern int errno where not.
These commits were inspired by a similar commit to netbsd.
2000-04-14 06:15:01 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Bill Fumerola
16c4e40827 Fix nested if/else within an if 1999-07-08 22:27:00 +00:00
Dima Ruban
97b465b142 64bit fixes.
(Note: ``dump'' doesn't work on alpha yet. Apparently there's a problem
somewhere is the physio() area)

Submitted by:	myself && Matt Dillon.
1998-10-27 04:01:19 +00:00
Philippe Charnier
7580ffbbbd Correct use of .Nm. Add rcsid. Remove unused #includes. 1998-06-15 06:58:13 +00:00
Peter Wemm
a37c38b8d8 Merge Lite2 changes (rather bigish, the dump/restore folks should check) 1997-03-11 12:09:50 +00:00
Jordan K. Hubbard
28ebf21479 Update CHANGEDSINCE macro to conform to -current dinode.h 1997-02-16 22:16:08 +00:00
Nate Williams
45808359e6 ts_sec -> tv_sec
ts_nsec -> tv_nsec
1996-09-20 04:56:09 +00:00
Joerg Wunsch
d195e6deec When using dump/rdump on large filesytems (my case 3 GB), the lseek
claims multiple times to have failed. The problem is a off_t is
converted into a int and checked for a negative. A true lseek check
should be checking if the off_t is equal to -1 for failure.

(Suggested fix from PR #bin/461)

Submitted by:	mark tinguely <tinguely@opus.cs.ndsu.NoDak.edu>
1995-06-24 17:07:21 +00:00
Rodney W. Grimes
5ebc7e6281 Remove trailing whitespace. 1995-05-30 06:12:45 +00:00
Rodney W. Grimes
8fae3551ec BSD 4.4 Lite sbin Sources
Note:  XNSrouted and routed NOT imported here, they shall be imported with
usr.sbin.
1994-05-26 06:35:07 +00:00