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LVSINFO is exactly the same as existing LVS report type,
but it has the "struct lvinfo" populated in addition for
use - this is useful for fields that display the status
of the LV device itself (e.g. suspended state, tables
present/missing...).
Currently, such properties are reported within the "lv_attr"
field so separation is unnecessary - the "lvinfo" call
to populate the "struct lvinfo" is directly a part of the
field reporting function - _lvstatus_disp/lv_attr_dup.
With upcoming patches, we'd like the lv_attr field bits
to be separated into their own fields. To avoid calling
"lvinfo" fn as many times as there are fields requiring
the "lv_info" structure to be populated while reporting
one row related to one LV, we're separating former LVS
into LVS and LVSINFO report type. With this, there's
just one "lvinfo" call for one report row and LV reporting
fields will take the info needed from this struct then,
hence reusing it and not calling "lvinfo" fn on their own.
Add internal devtypes reporting command to display built-in recognised
block device types. (The output does not include any additional
types added by a configuration file.)
> lvm devtypes -o help
Device Types Fields
-------------------
devtype_all - All fields in this section.
devtype_name - Name of Device Type exactly as it appears in /proc/devices.
devtype_max_partitions - Maximum number of partitions. (How many device minor numbers get reserved for each device.)
devtype_description - Description of Device Type.
> lvm devtypes
DevType MaxParts Description
aoe 16 ATA over Ethernet
ataraid 16 ATA Raid
bcache 1 bcache block device cache
blkext 1 Extended device partitions
...
Add thin and thin pool lv creation support to lvm library
This is Mohan's thinp patch, re-worked to include suggestions
from Zdenek and Mohan.
V2: Remove const lvm_lv_params_create_thin
Add const lvm_lv_params_skip_zero_get
V3: Changed get/set to use generic functions like current
property
V4: Corrected macro in properties.c
V5: Fixed a bug in liblvm/lvm_lv.c function lvm_lv_create.
incorrectly used pool instead of lv_name when doing the
find_lv_in_vg call.
Based on work done by M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Tony Asleson <tasleson@redhat.com>
When reporting explicitly label attributes (pv_uuid for example), we do not
need to read metadata.
This patch separate the label fileds and removes scan_vgs_for_pvs
in process_each_pv() if not needed.
(There should be no user visible change in output.)
