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mke2fs: Add support for [devices] stanza in mke2fs.conf 

Add the [devices] stanza which allows device-specific defaults to be
specified in the mke2fs.conf file.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
bitmap-optimize
Theodore Ts'o 2011-06-14 14:17:56 -04:00
parent 8f36e6925f
commit 4c2b28ab67
2 changed files with 29 additions and 5 deletions
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18
misc/mke2fs.c
View File

@ -1190,8 +1190,8 @@ static void PRS(int argc, char *argv[])
errcode_t retval;
char * oldpath = getenv("PATH");
char * extended_opts = 0;
const char * fs_type = 0;
const char * usage_types = 0;
char * fs_type = 0;
char * usage_types = 0;
blk64_t dev_size;
blk64_t fs_blocks_count = 0;
#ifdef __linux__
@ -1448,10 +1448,10 @@ profile_error:
super_only = 1;
break;
case 't':
fs_type = optarg;
fs_type = strdup(optarg);
break;
case 'T':
usage_types = optarg;
usage_types = strdup(optarg);
break;
case 'U':
fs_uuid = optarg;
@ -1589,6 +1589,13 @@ profile_error:
proceed_question();
}
if (!fs_type)
profile_get_string(profile, "devices", device_name,
"fs_type", 0, &fs_type);
if (!usage_types)
profile_get_string(profile, "devices", device_name,
"usage_types", 0, &usage_types);
/*
* We have the file system (or device) size, so we can now
* determine the appropriate file system types so the fs can
@ -1946,6 +1953,9 @@ profile_error:
*/
ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
ext2fs_blocks_count(&fs_param) / 100.0);
free(fs_type);
free(usage_types);
}
static int should_do_undo(const char *name)

16
misc/mke2fs.conf.5.in
View File

@ -65,7 +65,7 @@ file. They will be described in more detail in future sections of this
document.
.TP
.I [defaults]
Contains relations which define the default parameters
Contains relations which define the default parameters
used by
.BR mke2fs (8).
In general, these defaults may be overridden by a definition in the
@ -395,6 +395,20 @@ on a per-filesystem type basis.
This relation is a boolean which specifies whether the
.BR mke2fs (8)
should attempt to discard device prior to filesystem creation.
.SH THE [devices] STANZA
Each tag in the
.I [devices]
stanza names device name so that per-device defaults can be specified.
.TP
.I fs_type
This relation specifies the default parameter for the
.B \-t
option, if this option isn't specified on the command line.
.TP
.I usage_types
This relation specifies the default parameter for the
.B \-T
option, if this option isn't specified on the command line.
.SH FILES
.TP
.I /etc/mke2fs.conf