Peter Rajnoha [Mon, 27 Oct 2014 10:25:08 +0000 (11:25 +0100)]
report: selection: fix selection criteria to not match reserved values when using >, <, >=, <
Some values are reserved for special purpose like 'undefined', 'unmanaged' etc.
When using >, <, >= and < comparison operators where the range is considered,
do not include reserved values as proper values in this range which
would otherwise result in not so obvious criteria match (as the reserved value is
actually transparent for the user). It's incorrect.
However, we still need to fix situaton where the reserved value may be
included in resulting range:
Before this patch:
$ vgs -o vg_name,vg_mda_copies vg1 vg2 -S 'vg_mda_copies >= 1'
VG #VMdaCps
vg1 1
vg2 unmanaged
With this patch applied:
$ vgs -o vg_name,vg_mda_copies vg1 vg2 -S 'vg_mda_copies >= 1'
VG #VMdaCps
vg1 1
From the examples above, we can see that without this patch applied,
the vg_mda_copies >= 1 also matched the reserved value 18446744073709551615
(which is represented by the "unamanged" string on report). When
applying the operators, such values must be skipped! They're meant to
be matched only against their string representation only, e.g.:
Zdenek Kabelac [Sun, 26 Oct 2014 07:13:59 +0000 (08:13 +0100)]
thin: simplify thin volume creation
Move code for creation of thin volume into a single place
out of lv_extend(). This allows to drop extra pool arg
for alloc_lv_segment() && lv_extend() and makes code
more easier to read and follow.
Zdenek Kabelac [Sun, 26 Oct 2014 17:17:59 +0000 (18:17 +0100)]
cache: apply chunk rounding also for cache creation.
When we create volumes with chunk size bigger then extent size
we try to round up to some nearest chunk boundary.
Until now we did this for thins - use same logic for
cache volumes.
Zdenek Kabelac [Fri, 24 Oct 2014 13:26:41 +0000 (15:26 +0200)]
lvcreate: new validation code
Refactor lvcreate code.
Prefer to use arg_outside_list_is_set() so we get automatic 'white-list'
validation of supported options with different segment types.
Drop used lp->cache, lp->cache and use seg_is_cache(), seg_is_thin()
Draw clear border where is the last moment we could change create
segment type.
When segment type is given with --type - do not allow it to be changed
later.
Put together tests related to individual segment types.
Finish cache conversion at proper part of lv_manip code after
the vg_metadata are written - so we could correcly clean-up created
stripe LV for cache volume.
Zdenek Kabelac [Sat, 18 Oct 2014 08:58:30 +0000 (10:58 +0200)]
options: introduce pooldatasize option
Introduce new option to specify pool data size.
This will be user to create i.e. cache & cachepool at once.
And possible for thin external origin snapshot.
This is only very basic patch to enable options, the
real working code will come later.
Zdenek Kabelac [Wed, 22 Oct 2014 12:30:33 +0000 (14:30 +0200)]
tools: refactor reporter code
Use new libdm macro DM_LIST_HEAD_INIT().
Embeded 'free' segment type (so it's not needed in the list)
Drop assignments of 0,NULL since they are defaults.
Peter Rajnoha [Thu, 23 Oct 2014 13:03:04 +0000 (15:03 +0200)]
report: fix selection on {vg,lv}_permissions fields to properly match selection criteria
There was a bug in value and their synonym definition for these two fields
causing selections on these fields to not work correctly - nothing matched
against vg/lv_permissions fields even if selection criteria should have
matched.
Peter Rajnoha [Fri, 17 Oct 2014 11:55:06 +0000 (13:55 +0200)]
liblvm2cmd: recognize quotes properly when splitting cmd line string into argv array fields
Fix lvm_split that is called when cmd line string is separated into
argv fields to recognize quote chars ('\'" and '"') properly and
when these quotes are used, consider the text within quotes as one
argument, do not separate it based on space characters inside.
The lvm_split is used during processing lvm shell command line or
when calling lvm commands through cmdlib (e.g. dmeventd plugins).
For example, the lvm shell scenario:
Before this patch:
$lvm
lvm> lvs --config 'global{ suffix=0 }'
Parse error at byte 9 (line 1): unexpected token
Failed to set overridden configuration entries.
David Teigland [Wed, 15 Oct 2014 20:45:38 +0000 (15:45 -0500)]
toollib: remove dead code
Because of the recent change to process_each_pv(), the vg is always
provided when the pv is in a vg. is_pv(pv) means the pv is in a vg,
which means that the vg arg will not be NULL, which means the removed
block of code is not needed.
Peter Rajnoha [Tue, 14 Oct 2014 07:56:58 +0000 (09:56 +0200)]
systemd: remove workaround for lvm2-monitor.service's ExecStop line
Bug https://bugzilla.redhat.com/show_bug.cgi?id=843587 is handled better
now - the hang does not occur anymore. There are still error messages
issued though during shutdown if someone stops lvm2-lvmetad.service
manually that lvm2-monitor.service depends on (even during shutdown).
These errors are correct though and will point to incorrect
configuration (still having use_lvmetad=1 in lvm.conf and stopping
lvm2-lvmetad.service manually).
The workaround to prevent the hang is not needed now. So the
'--config "global{use_lvmetad=0}"' is now removed from the
lvm2-monitor.service's ExecStop line.
Peter Rajnoha [Wed, 8 Oct 2014 08:57:44 +0000 (10:57 +0200)]
filter-usable: filter out blocked and suspended devices firmly when scanning for lvmetad
We can't hang on blocked or suspended devices when the scan is done
for lvmetad update - when the device gets unblocked or resumed, there's
always CHANGE event generated which will fire the udev rule to run
extra pvscan --cache for that device which makes sure that lvmetad
is up-to-date.
Zdenek Kabelac [Tue, 7 Oct 2014 13:41:54 +0000 (15:41 +0200)]
lvcreate: regression fix on lv name limits
When we are given an existing LV name - it needs to be allowed
to pass in even restricted name as the LV could have existed
long before we introduced some new restriction on prefix/suffix.i
Fix the regression on name limits and drop restriction to be applied
on any existing LVs - only the new created LV names have to be
complient with current name restrictions.
FIXME: we are currently using restricted names incorrectly in few
other places - device_is_usable() skips restricted names,
and udev flags are also incorrectly set for restricted names
so these LVs are not getting links properly.
Peter Rajnoha [Tue, 7 Oct 2014 06:58:51 +0000 (08:58 +0200)]
metadata: add internal error if PV has no existing device attached during find_pv_in_vg
find_pv_in_vg fn iterates over the list of PVs covered by the VG and
each PV's pvl->pv->dev is compared with device acquired from device
cache. However, in case pvl->pv->dev is NULL as well as device cache
returns NULL (e.g. when device is filtered), we'll get incorrect match
and the code calling find_pv_in_vg uses incorrect PV (as it thinks
it's the exact PV with the pv_name). The INTERNAL_ERROR covers this
situation and errors out immediately.
David Teigland [Tue, 7 Oct 2014 00:04:09 +0000 (01:04 +0100)]
metadata: Use flags to control warnings.
The warnings arg was used to enable logging of warnings
when reading a PV. This arg is turned into a set of flags
with the WARN_PV_READ flag matching the existing behavior.
A new flag WARN_INCONSISTENT is added that will cause
vg_read_internal() to log the "VG is not consistent"
warning so the various callers do not need to log
this warning themselves.
A new vg_read flag READ_WARN_INCONSISTENT is used from
reporting to enable the WARN_INCONSISTENT flag in
vg_read_internal.
[Committed by agk with cosmetic changes and tweaks.]
David Teigland [Mon, 6 Oct 2014 23:34:04 +0000 (00:34 +0100)]
toollib: Rewrite process_each_pv.
Process PVs by iterating through VGs, then iterating through
devices if the command needs to process non-PV devices.
The process_single function can always use the VG and PV args.
[Committed by agk with cosmetic changes and tweaks.]