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When running the -m option to generate a newfs(8) command suitable for

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recreating the filesystem, check for and output the -i, -k, and -l
options if appropriate.

Note the remaining deficiencies of the -m option in the dumpfs(8)
manual page. Specifically that newfs(8) options -E, -R, -S, and -T
options are not handled and that -p is not useful so is omitted.
Also document that newfs(8) options -n and -r are neither checked
for nor output but should be. The -r flag is needed if the filesystem
uses gjournal(8).

PR:           bin/163992
Reported by:  Dieter <freebsd@sopwith.solgatos.com>
Submitted by: Andy Kosela <akosela@andykosela.com>
MFC after:    1 week
This commit is contained in:
Kirk McKusick 2013-05-16 20:07:08 +00:00
parent c96e8c3222
commit 9d384d4d3d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=250710
2 changed files with 27 additions and 3 deletions
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23
sbin/dumpfs/dumpfs.8
View File

@ -28,7 +28,7 @@
.\" @(#)dumpfs.8 8.1 (Berkeley) 6/5/93
.\" $FreeBSD$
.\"
.Dd Jul 14, 2011
.Dd May 16, 2013
.Dt DUMPFS 8
.Os
.Sh NAME
@ -76,6 +76,27 @@ is specified, a
.Xr newfs 8
command is printed that can be used to generate a new file system
with equivalent settings.
Please note that
.Xr newfs 8
options
.Fl E ,
.Fl R ,
.Fl S ,
and
.Fl T
are not handled and
.Fl p
is not useful in this case so is omitted.
.Xr Newfs 8
options
.Fl n
and
.Fl r
are neither checked for nor output but should be.
The
.Fl r
flag is needed if the filesystem uses
.Xr gjournal 8 .
.Sh SEE ALSO
.Xr disktab 5 ,
.Xr fs 5 ,

7
sbin/dumpfs/dumpfs.c
View File

@ -417,12 +417,15 @@ marshal(const char *name)
printf("-f %d ", fs->fs_fsize);
printf("-g %d ", fs->fs_avgfilesize);
printf("-h %d ", fs->fs_avgfpdir);
/* -i is dumb */
printf("-i %jd ", fragroundup(fs, lblktosize(fs, fragstoblks(fs,
fs->fs_fpg)) / fs->fs_ipg));
if (fs->fs_flags & FS_SUJ)
printf("-j ");
if (fs->fs_flags & FS_GJOURNAL)
printf("-J ");
/* -k..l unimplemented */
printf("-k %jd ", fs->fs_metaspace);
if (fs->fs_flags & FS_MULTILABEL)
printf("-l ");
printf("-m %d ", fs->fs_minfree);
/* -n unimplemented */
printf("-o ");