| History log of /src/sbin/mount_lfs/mount_lfs.8 |
| Revision | | Date | Author | Comments |
| 1.15 |
| 31-Mar-2005 |
wiz | Add -i to SYNOPSIS.
|
| 1.14 |
| 31-Mar-2005 |
xtraeme | Add -i option, it's just the same than -f in lfs_cleanerd(8), ok'ed
thorpej@.
|
| 1.13 |
| 31-Jan-2005 |
erh | Fix PR#3617 and PR#3205: call realpath to convert mount points and paths to
device nodes into absolute paths before using them.
|
| 1.12 |
| 10-Jun-2004 |
uebayasi | Fix SEE ALSO; remove .sp; put .Pp before sentences.
|
| 1.11 |
| 07-Aug-2003 |
agc | Move UCB-licensed code from 4-clause to 3-clause licence.
Patches provided by Joel Baker in PR 22308, verified by myself.
|
| 1.10 |
| 25-Feb-2003 |
wiz | .Nm does not need a dummy argument ("") before punctuation or
for correct formatting of the SYNOPSIS any longer.
|
| 1.9 |
| 05-Jun-2001 |
wiz | Drop arguments of .Os.
|
| 1.8 |
| 08-Nov-2000 |
hubertf | xref dump_lfs(8), newfs_lfs(8) in SEE ALSO
|
| 1.7 |
| 09-Sep-2000 |
perseant | Various bug-fixes to LFS, to wit:
Kernel:
* Add runtime quantity lfs_ravail, the number of disk-blocks reserved
for writing. Writes to the filesystem first reserve a maximum amount
of blocks before their write is allowed to proceed; after the blocks
are allocated the reserved total is reduced by a corresponding amount.
If the lfs_reserve function cannot immediately reserve the requested
number of blocks, the inode is unlocked, and the thread sleeps until
the cleaner has made enough space available for the blocks to be
reserved. In this way large files can be written to the filesystem
(or, smaller files can be written to a nearly-full but thoroughly
clean filesystem) and the cleaner can still function properly.
* Remove explicit switching on dlfs_minfreeseg from the kernel code; it
is now merely a fs-creation parameter used to compute dlfs_avail and
dlfs_bfree (and used by fsck_lfs(8) to check their accuracy). Its
former role is better assumed by a properly computed dlfs_avail.
* Bounds-check inode numbers submitted through lfs_bmapv and lfs_markv.
This prevents a panic, but, if the cleaner is feeding the filesystem
the wrong data, you are still in a world of hurt.
* Cleanup: remove explicit references of DEV_BSIZE in favor of
btodb()/dbtob().
lfs_cleanerd:
* Make -n mean "send N segments' blocks through a single call to
lfs_markv". Previously it had meant "clean N segments though N calls
to lfs_markv, before looking again to see if more need to be cleaned".
The new behavior gives better packing of direct data on disk with as
little metadata as possible, largely alleviating the problem that the
cleaner can consume more disk through inefficient use of metadata than
it frees by moving dirty data away from clean "holes" to produce
entirely clean segments.
* Make -b mean "read as many segments as necessary to write N segments
of dirty data back to disk", rather than its former meaning of "read
as many segments as necessary to free N segments worth of space". The
new meaning, combined with the new -n behavior described above,
further aids in cleaning storage efficiency as entire segments can be
written at once, using as few blocks as possible for segment summaries
and inode blocks.
* Make the cleaner take note of segments which could not be cleaned due
to error, and not attempt to clean them until they are entirely free
of dirty blocks. This prevents the case in which a cleanerd running
with -n 1 and without -b (formerly the default) would spin trying
repeatedly to clean a corrupt segment, while the remaining space
filled and deadlocked the filesystem.
* Update the lfs_cleanerd manual page to describe all the options,
including the changes mentioned here (in particular, the -b and -n
flags were previously undocumented).
fsck_lfs:
* Check, and optionally fix, lfs_avail (to an exact figure) and
lfs_bfree (within a margin of error) in pass 5.
newfs_lfs:
* Reduce the default dlfs_minfreeseg to 1/20 of the total segments.
* Add a warning if the sgs disklabel field is 16 (the default for FFS'
cpg, but not usually desirable for LFS' sgs: 5--8 is a better range).
* Change the calculation of lfs_avail and lfs_bfree, corresponding to
the kernel changes mentioned above.
mount_lfs:
* Add -N and -b options to pass corresponding -n and -b options to
lfs_cleanerd.
* Default to calling lfs_cleanerd with "-b -n 4".
[All of these changes were largely tested in the 1.5 branch, with the
idea that they (along with previous un-pulled-up work) could be applied
to the branch while it was still in ALPHA2; however my test system has
experienced corruption on another filesystem (/dev/console has gone
missing :^), and, while I believe this unrelated to the LFS changes, I
cannot with good conscience request that the changes be pulled up.]
|
| 1.6 |
| 07-Mar-1999 |
mycroft | branches: 1.6.10;
Clean up SYNOPSIS formatting.
|
| 1.5 |
| 06-Feb-1998 |
perry | macroize BSD, NetBSD, FreeBSD and misc cleanup
|
| 1.4 |
| 15-Sep-1997 |
lukem | * update for WARNS=1
* getopt returns -1 not EOF
* fix .Nm usage
|
| 1.3 |
| 29-May-1997 |
cgd | Fix broken uses of Dd. Both the mdoc and mdoc.samples pages agree:
.Dd is supposed to be invoked like:
.Dd month day, year
e.g. ".Dd January 25, 1989", rather than:
.Dd "month day, year"
which is what these pages did.
|
| 1.2 |
| 18-Mar-1995 |
cgd | convert to new RCS Id conventions; reduce my headache
|
| 1.1 |
| 08-Jun-1994 |
mycroft | branches: 1.1.1;
Update from 4.4-Lite, with local changes.
|
| 1.1.1.1 |
| 13-Jun-1994 |
mycroft | Import 4.4-Lite version.
|
| 1.6.10.1 |
| 14-Sep-2000 |
perseant | Pull up LFS userland changes to correspond with the previous commit's
kernel changes (approved by thorpej):
[basesrc/libexec/lfs_cleanerd:]
cleanerd.c, 1.20--1.22 (MIN_FREE_SEG -> lfs_minfreeseg ;
read bfree/avail from CLEANERINFO ;
changes to definition of -n and -b)
lfs_cleanerd.8, 1.7 (update man page to current behavior)
library.c, 1.16 (fix comment)
[basesrc/sbin/fsck_lfs:]
pass5.c, 1.6 (calculate/fix lfs_avail and lfs_bfree)
[basesrc/sbin/newfs_lfs:]
config.h, 1.2--1.5 (MINFREE=20, remove FFS cruft ;
add DFL_MIN_FREE_SEGS=8 and MINFREE=10 ;
set DFL_MIN_FREE_SEGS=10 ;
set DFL_MIN_FREE_SEGS=20)
extern.h, 1.2 (correct function declaration for make_lfs)
newfs.c, 1.4 (add -M flag)
lfs.c, 1.13--1.14, 1.16--1.18 (change lfs_bfree initialization ;
MIN_FREE_SEG -> lfs_minfreeseg ;
only 10 superblocks and print nicely ;
correct init calculation of
lfs_bfree/lfs_avail to allow fs to
fill ;
make -N dtrt)
[basesrc/sbin/mount_lfs:]
mount_lfs.8, 1.7 (document -N, -b flags)
mount_lfs.c, 1.10 (default cleanerd to -b -n 4; add -N,
-b flags)
[basesrc/usr.sbin/dumplfs:]
dumplfs.c, 1.15 (print only the SEGUSEs specified with -s)
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