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The wipe_known_signatures fn now wraps the _wipe_signature fn that is called
for each known signature (currently md, swap and luks). This patch makes the
code more readable, not repeating the same sequence when used anywhere in the
code. We're going to reuse this code later...
If the refresh fails for any reason before autoactivation, let's not
make this a stopper for autoactivation itself - just log the error
message if it appears.
The reason is that in some rare situations, we can still hit the
problem with the suspend call to fail (as already described in
commit d8085edf65, also
https://bugzilla.redhat.com/show_bug.cgi?id=1027314). The refresh
itself is done for only one reason - to refresh any dm tables
for LVs for which the underlying PVs got unplugged/disconnected
and then plugged/connected back (see also
https://bugzilla.redhat.com/show_bug.cgi?id=954061 for more info).
In this case, the major:minor pair is changed and we need to
update dm tables for LVs accordingly.
Now if refresh fails, the error is still logged, but autoactivation
continues.
If using lv/vgchange --sysinit -aay and lvmetad is enabled, we'd like to
avoid the direct activation and rely on autoactivation instead so
it fits system initialization scripts.
But if we're calling lv/vgchange --sysinit -aay too early when even
lvmetad service is not started yet, we just need to do the direct
activation instead without printing any error messages (while
trying to connect to lvmetad and not finding its socket).
This patch adds two helper functions - "lvmetad_socket_present" and
"lvmetad_used" which can be used to check for this condition properly
and avoid these lvmetad connections when the socket is not present
(and hence lvmetad is not yet running).
Whole struct will be set to 0, just
if the first member is array, gcc gives warning
we should initialized this element as array,
so pick any later simple type.
It will likely not fail to duplicate empty string, but
just keep the test of result of this function consistent.
Also on error path restore extent_size if in some
case someone would still use that variable.
Put common printf() case into a function and use
the string with text format as direct arg to make
the compile time validation of args easier and
code shorter.
Switch log_error() to log_warn(), since 'return 0'
doesn't cause any failure here.
Revert 4777eb6872 which put
target_present check into init_snapshot_merge(). However
this function is also used when parsing metadata. So we would
get this present test performed even when target is not really
needed. So move this target_present test directly into lvconvert.
Changed naming of methods from camel case to all lower case with
underscores per guidelines. Changed any methods that can be
static methods to static.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
The error buffer will stack error messages which is fine. However,
once you retrieve the error messages it doesn't make sense to keep
appending for each additional error message when running in the
context of a library call.
This patch clears and resets the buffer after the user retrieves
the error message.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Add a PV create which takes a paramters object that
has get/set method to configure PV creation.
Current get/set operations include:
- size
- pvmetadatacopies
- pvmetadatasize
- data_alignment
- data_alignment_offset
- zero
Reference: https://bugzilla.redhat.com/show_bug.cgi?id=880395
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Replace the code with the refactored vgreduce_single instead
of calling its own implementation.
Corrects bug: https://bugzilla.redhat.com/show_bug.cgi?id=989174
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Moving the core functionality of vgreduce single into
lib/metadata/vg.c so that the command line and lvm2app library
can call the same core functionality. New function is
vgreduce_single.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
In a previous commit we added the ability for the library to do garbage
collection, to free all the memory used by the library handle buffer by closing
and re-opening the library handle. When we introduced this functionality we
also opened up the opportunity that the user of the python bindings to have
an object that references the old library handle. In this case if the user
tried to use the old object a segmentation fault could occur because the
memory had been previously freed.
This patch tries to mitigate this by storing a copy of the library handle that
was used when the object was created so that it can compare the current in
use pointer with what existed when the object was created. In the case where
they match the operation is permitted to continue, otherwise an exception is
throw, thus avoiding a segmentation fault.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
3.12.0 kernel prevents raid test to be usable,
leaving unremovable devices in table.
This needs to be fixed ASAP, meanwhile disable test to make
test machines at least usable.
Add 'can_use_16T' to detect systems where we could
safely use 16T devices without causing system deadlocks.
16T size leads on those to endless loops in udevd
- it calls blkid which tries cached read from such device
- this ends in endless loop.
Related problems:
https://bugzilla.redhat.com/show_bug.cgi?id=1015028
