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Allow pvchange and pvresize to process exported VGs,
and have them check for the exported state in their
single function.
Previously, the exported VG state would trigger a
failure in vg_read()/ignore_vg() because the VGs are
being read with READ_FOR_UPDATE. Because these commands
read all VGs to search for the intended PVs, any
exported VG would trigger a failure, even if it was
not related to the intended PV.
Use <> around user entered option parameters to make it visually
different (just like we use Italic style in man page).
TODO:
In the future we should consistently provide such notation and
possibly generate it automagically from some internal data structures.
Preferably for man pages as well so we report actual set of supported
options.
Recent kernel (4.4) start to report values smaller then sector size
(but in reporting size for SSD which support data zeroing on discard).
For now log warning and assume it really means 1 sector.
Addressing RHBZ:
https://bugzilla.redhat.com/show_bug.cgi?id=1313377
Continuing with lvconvert style updates.
Minimize usage of '\:' as zero-width break space, since html renderers
do not handle this groff sign well (some of them seems to even render
':' there).
But since we do not want see badly rendered man pages itself, prefer
the 'man visual' appearence over html page generation (man2html should
be actually fixed).
Start to use 'user input option' with Capitals more consistently.
Fixing vpath usage as it has been checking for existance of
generated file also in the $(scrdir) e.g.:
No need to remake target '10-dm.rules.in'; using VPATH name '...'
If the $(srcdir) had been also $(builddir) and contained already
generated rules file, it's been used instead generating new
one.
(See: http://make.mad-scientist.net/papers/how-not-to-use-vpath/)
Commit abd9618dd8 tried to improve
parsing of vg name from logical path - but still missed couple
corner cases.
This patch further improves the logic and reuses
validate_lvname_param() for parsing of lv_name.
Also explicitly checks for LVM_VG_NAME in the right case.
So now also properly parses cases like:
'lvconvert --repairt vg/'
and will provide correct error message.
There's a window between doing VG read and checking PV device size
against real device size. If the device is removed in this window,
the dev cache still holds struct device and pv->dev still references
that and that PV is not marked as missing. However, if we're trying
to get size for such device, the open fails because that device
doesn't exists anymore.
We called existing pv_dev_size in _check_pv_dev_sizes fn. But
pv_dev_size assigned a size of 0 if the dev_get_size it called failed
(because the device is gone).
So call the dev_get_size directly and check for the return code
in _check_pv_dev_sizes and go further only if we really know the
device size. This is to avoid confusing warning messages like:
Device /dev/sdd1 has size of 0 sectors which is smaller than corresponding PV size of 31455207 sectors. Was device resized?
One or more devices used as PVs in VG helter_skelter have changed sizes.
While running on F24 a number of warnings were being emitted from using the
deprecated GObject instead of GLib. Tested on python 3.4 and 3.5.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Python 3.5 in F24 was throwing the following exception:
Traceback (most recent call last):
File "/usr/lib/python3.5/site-packages/lvmdbusd/main.py", line 73, in process_request
req.run_cmd()
File "/usr/lib/python3.5/site-packages/lvmdbusd/request.py", line 73, in run_cmd
self.register_error(-1, st)
File "/usr/lib/python3.5/site-packages/lvmdbusd/request.py", line 123, in register_error
self._reg_ending(None, error_rc, error)
File "/usr/lib/python3.5/site-packages/lvmdbusd/request.py", line 115, in _reg_ending
self.cb_error(self._rc_error)
File "/usr/lib64/python3.5/site-packages/dbus/service.py", line 669, in <lambda>
keywords[error_callback] = lambda exception: _method_reply_error(connection, message, exception)
File "/usr/lib64/python3.5/site-packages/dbus/service.py", line 293, in _method_reply_error
exception))
File "/usr/lib64/python3.5/traceback.py", line 136, in format_exception_only
return list(TracebackException(etype, value, None).format_exception_only())
File "/usr/lib64/python3.5/traceback.py", line 442, in __init__
if (exc_value and exc_value.__cause__ is not None
AttributeError: 'str' object has no attribute '__cause__'
This was caused because we were calling the dbus error callback with a
string instead of an actual exception. On python 3.4 this was apparently
OK, but not with 3.5. Corrected to pass the exception to error callback.
Change tested on both python 3.4 and 3.5.
Reported-by: Vratislav Podzimek <vpodzime@redhat.com>
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Specifying an output width of 0 now leads to a default minimum width
taken from the width of the column heading. (Most fields should use
this.)
Components of field names are generally separated by underscores (which
are optional at run-time). (Dropped 3 duplicate fields now covered by
this rule.)
Each field heading must be unique and generally doesn't have spaces
between words (which get capitalised) unless they are already short and
the fields are normally longer or clarity demands it.
With the recent conversion of pvcreate/pvremove to the
common toollib processing function, skipping in-use PVs
in _process_pvs_in_vg prevented them from being protected
as intended by the in-use flag.
The processing code for pvcreate/pvremove checks for the
in-use state itself and prevents using an in-use PV.
If a PV is skipped, it looks like an unused device and
is not protected from being used in pvcreate/pvremove.
This command option can be used to trigger a D-Bus
notification independent of the usual notifications
that are sent from other commands as an effect of
changes to PV/VG/LV state. If lvm is not built with
dbus notification support or if notify_dbus is disabled
in the config, this command will exit with an error.
When a command modifies a PV or VG, or changes the
activation state of an LV, it will send a dbus
notification when the command is finished. This
can be enabled/disabled with a config setting.
The code in _print_historical_lv function works with temporary
"descendants_buffer" that is allocated and freed within this
function.
When printing text out, we used "outf" macro which called
"out_text" fn and it checked return value and if failed,
the macro called "return_0" automatically. But since we
use the temporary buffer, if any of the out_text calls
fails, we need to deallocate this buffer properly - that's
the "goto_out", otherwise we'll be leaking memory.
So add new "outfgo" helper macro which does the same as "outf",
but it calls "goto_out" instead of "return_0" so we can jump
to a cleanup hook at the end.
- stdout/stderr for test output
- debug.log* for daemon output
- use install instead of cp for DBus config
- use system bus
- DBus reloads on new file. Better having it created with correct
permissions.
Notes:
- Squashed commits from mcsontos development branch
- Still disabled at this time
Signed-off-by: Tony Asleson <tasleson@redhat.com>
