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man/help: poolmetadatasize option can take relative value

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In lvcreate/lvconvert, --poolmetdatasize can only be an
absolute value, but in lvresize/lvextend, --poolmetadatasize
can be given a + relative value.

The val types only currently support relative values that
go in both directions +|-.  Further work is needed to add
val types that can be relative in only one direction, and
switching various option values to one those depending on
the command name.  Then poolmetdatasize will not appear
with a +|- option in lvcreate/lvconvert, and will
appear with only the + option in lvresize/lvextend.
This commit is contained in:
David Teigland 2017-03-03 15:57:51 -06:00
parent c5b6c9ad44
commit b6c4b7cfb0
3 changed files with 23 additions and 8 deletions
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11
tools/args.h
View File

@ -414,8 +414,15 @@ arg(pooldatasize_ARG, '\0', "pooldatasize", sizemb_VAL, 0, 0, NULL)
arg(poolmetadata_ARG, '\0', "poolmetadata", lv_VAL, 0, 0,
"The name of a an LV to use for storing pool metadata.\n")
arg(poolmetadatasize_ARG, '\0', "poolmetadatasize", sizemb_VAL, 0, 0,
"The size of the pool metadata LV created by the command.\n")
arg(poolmetadatasize_ARG, '\0', "poolmetadatasize", ssizemb_VAL, 0, 0,
"#lvcreate\n"
"#lvconvert\n"
"Specifies the size of the new pool metadata LV.\n"
"#lvresize\n"
"#lvextend\n"
"Specifies the new size of the pool metadata LV.\n"
"The plus prefix \\fB+\\fP can be used, in which case\n"
"the value is added to the current size.\n")
arg(poolmetadataspare_ARG, '\0', "poolmetadataspare", bool_VAL, 0, 0,
"Enable or disable the automatic creation and management of a\n"

12
tools/command-lines.in
View File

@ -307,7 +307,7 @@ RULE: all not LV_thinpool LV_cachepool
OO_LVCONVERT_RAID: --mirrors SNumber, --stripes_long Number,
--stripesize SizeKB, --regionsize RegionSize, --interval Number
OO_LVCONVERT_POOL: --poolmetadata LV, --poolmetadatasize SizeMB,
OO_LVCONVERT_POOL: --poolmetadata LV, --poolmetadatasize SSizeMB,
--poolmetadataspare Bool, --readahead Readahead, --chunksize SizeKB
OO_LVCONVERT_CACHE: --cachemode CacheMode, --cachepolicy String,
@ -702,7 +702,7 @@ OO_LVCREATE: --addtag Tag, --alloc Alloc, --autobackup Bool, --activate Active,
OO_LVCREATE_CACHE: --cachemode CacheMode, --cachepolicy String, --cachesettings String,
--chunksize SizeKB
OO_LVCREATE_POOL: --poolmetadatasize SizeMB, --poolmetadataspare Bool, --chunksize SizeKB
OO_LVCREATE_POOL: --poolmetadatasize SSizeMB, --poolmetadataspare Bool, --chunksize SizeKB
OO_LVCREATE_THIN: --discards Discards, --errorwhenfull Bool
@ -1148,7 +1148,7 @@ ID: lvdisplay_general
lvextend --size SSizeMB LV
OO: --alloc Alloc, --autobackup Bool, --force, --mirrors SNumber,
--nofsck, --nosync, --noudevsync, --reportformat ReportFmt, --resizefs,
--stripes Number, --stripesize SizeKB, --poolmetadatasize SizeMB,
--stripes Number, --stripesize SizeKB, --poolmetadatasize SSizeMB,
--type SegType
OP: PV ...
ID: lvextend_by_size
@ -1162,7 +1162,7 @@ OO: --alloc Alloc, --autobackup Bool, --force, --mirrors SNumber,
ID: lvextend_by_pv
DESC: Extend an LV by specified PV extents.
lvextend --poolmetadatasize SizeMB LV_thinpool
lvextend --poolmetadatasize SSizeMB LV_thinpool
OO: --alloc Alloc, --autobackup Bool, --force, --mirrors SNumber,
--nofsck, --nosync, --noudevsync,
--reportformat ReportFmt, --stripes Number, --stripesize SizeKB,
@ -1220,7 +1220,7 @@ ID: lvrename_lv_lv
lvresize --size SSizeMB LV
OO: --alloc Alloc, --autobackup Bool, --force,
--nofsck, --nosync, --noudevsync, --reportformat ReportFmt, --resizefs,
--stripes Number, --stripesize SizeKB, --poolmetadatasize SizeMB,
--stripes Number, --stripesize SizeKB, --poolmetadatasize SSizeMB,
--type SegType
OP: PV ...
ID: lvresize_by_size
@ -1234,7 +1234,7 @@ OO: --alloc Alloc, --autobackup Bool, --force,
ID: lvresize_by_pv
DESC: Resize an LV by specified PV extents.
lvresize --poolmetadatasize SizeMB LV_thinpool
lvresize --poolmetadatasize SSizeMB LV_thinpool
OO: --alloc Alloc, --autobackup Bool, --force,
--nofsck, --nosync, --noudevsync,
--reportformat ReportFmt, --stripes Number, --stripesize SizeKB,

8
tools/command.c
View File

@ -1596,6 +1596,10 @@ static void print_val_usage(struct command *cmd, int val_enum)
* lvcreate does not take a relative [+|-] value
* for --size or --extents.
* Should we also squash - for lvextend and + for lvreduce?
*
* Should also squash +|- in front of poolmetadatasize value
* in lvcreate and lvconvert, and squash - in front of
* poolmetadatasize value in lvresize/lvextend.
*/
squash_sign_prefix = !strcmp(cmd->name, "lvcreate");
@ -2070,6 +2074,10 @@ static void print_val_man(struct command_name *cname, int val_enum)
* lvcreate does not take a relative [+|-] value
* for --size or --extents.
* Should we also squash - for lvextend and + for lvreduce?
*
* Should also squash +|- in front of poolmetadatasize value
* in lvcreate and lvconvert, and squash - in front of
* poolmetadatasize value in lvresize/lvextend.
*/
squash_sign_prefix = !strcmp(cname->name, "lvcreate");