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When mirror/raid called copy_percent function to return,
when 100% was supposed to be returned, wrong float 100.0 value
could have been reported back instead of dm_percent_t DM_PERCENT_100.
There is broken API somewhere, since the function here rely on
actively being modifid VG content even when doing 'lvs' operation.
(extents_copies)
Add support for active cache LV.
Handle --cachemode args validation during command line processing.
Rework some lvm2 internal to use lvm2 defined CACHE_MODE enums
indepently on libdm defines and use enum around the code instead
of passing and comparing strings.
Support parsing --chunksize option also when converting.
Now user can use cache pool created with i.e. 32K chunksize,
while in caching user can select 512K blocks.
Tool is supposed to validate cache metadata size is big enough
to support such chunk size. Otherwise error is shown.
If there's an activation volume_filter, it might not be possible
to activate the rmeta LVs to wipe them. At least inherit any
LV tags from the parent LV while attempting this.
Before executing modprobe for given module name, just check
if the module is not already present in /sys/module.
Useful when checking dm-cache-policy modules as we do not
having matching interface like for targets.
Patch 74e704bb4465960b361711c890733cbae1f06e42 missed to update
error path. Since now we just need to 'return_0' as 'dmt is NULL
and thus may not be destroyed.
Commit 52e0d0db4460d90172e9bd45b9ef30e7f4f75ae7 introduced regression
as code may access buf[0 - 1].
Reorder code to first remove '\n' and then check buffer size for
empty.
vg/snapshotN should not appear anywhere.
No code should be showing this, but it was noticed in some logs last
week and we can deal with it in display_lvname().
To recognize in runtime if we are merging or not
to make consistent decision between suspend and resume
add function to parse thin table line when add
merging thin device to the table.
A snapshot merge into its origin cannot be initiated while the devices
are in use. If there is outside interference (such as from udev),
the suspend (preload) and resume stages can reach conflicting decisions
about whether or not to proceed.
Try to make the logic more robust by checking the inactive or live
table during resume. (This is still not perfect.)
Commit 971ab733b74e0ffecc3f9f60af48628cd3fba1db ("thin: activation of
merging thin snapshot") also added an incorrect deactivation attempt
for non-thin LVs: find_snapshot(lv)->lv is not designed to be
activated and any attempt to deactivate it is incorrect.
When not obtaining device from udev, we are doing deep devdir scan,
and at the same time we try to insert everything what /sys/dev/block
knows about. However in case lvm2 is configured to use nonstardard
devdir this way it will see (and scan) devices from a real system.
lvm2 test suite is using its own test devdir with its
own device nodes. To avoid touching real /dev devices, validate
the device node exist in give dir and do not insert such device
into a cache.
With obtain list from udev this patch has no effect
(the normal user path).
We have _insert_dirs() for udev and non-udev compilation.
Compiling without udev missed to call dev_cache_index_devs().
Move the call after _insert_dirs() call so both compilation
gets it.
When scanning if device is being usable as PV,
we call STATUS - but this status should not cause
any flushing.
Skip also open_count information as it's not needed.
Devices without "LVM-" uuid prefix have been generated by very old
version of lvm2 2.00 and 2.01.
Since version 2.02 all lvm2 devices are using prefix "LVM-".
However checking for present of ancient non prefixed devices does
take extra IOCTL per every call and for majority of todays user
it will not find anything new.
So use the assumption that users with kernel 3.X and newer are not
really using such old versions of lvm2 (year <2005) and with their
new kernel they are also using new version of lvm2 and skip
checking for them.
This change also makes trace logs more readable.
This is hotfix for RHBZ: https://bugzilla.redhat.com/1324537
However already the %FREE is not a good fit and we need something
better. Meanwhile make -l%PVS work at least as good as %FREE
for thin-pool.
TODO: this needs rework - it should be allocator to do all the size
decisions at one place.
This reverts commit fc7dacaa4c6bf0af4c5a457c098da26d7cc71f9c.
Let's put this information into a separate field. It doesn't meet the
definition of the existing field.
Use meta% to expose highest mapped sector in thinLV.
so showing there 100.00% means thinLV maps latest sector.
Currently using a 'trick' with total_numerator to pass-in
device size when 'seg==NULL'
TODO: Improve device status API per target - current 'percentage'
is not really extensible.
Previous fix missed the fact the we do query for 'percent' with
seg value either set or unset (API overload...)
When 'seg' was unset, we still issue flush with status.
Fix it by cheking segtype by target_type.
As we check for segtype - we could also skip whole percentage
if the 'segtype' is unknown by code directly.
Reported-by: Ming-Hung Tsai <mingnus gmail com
It's correct to have a DM device that has no DM UUID assigned
so no need to issue error message in this case. Also, if the
device doesn't have DM UUID, it's also clear it's not an LVM LV
(...when looking for VGID/LVID while creating VGID/LVID indices
in dev cache).
For example:
$ dmsetup create test --table "0 1 linear /dev/sda 0"
And there's no PV in the system.
Before this patch (spurious error message issued):
$ pvs
_get_sysfs_value: /sys/dev/block/253:2/dm/uuid: no value
With this patch applied (no spurious error message):
$ pvs
