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Before:
thin_disabled_features = ""
Now:
thin_disabled_features = []
Which is a more correct and consistent way of specifying void array
though parses can handle both forms.
Smallest supported size for swap device is 40KB, however current
test skipped devices smaller then 4096 sectors (2MB).
Since page is in bytes, convert it to sectors before comparing
with device size (in sectors).
We have to close cluster in some predicatable way,
otherwise we may access released memory from different
threads.
So move closedown till the point we know all thread
are closed. New messages from cluster are discarded.
When multiple threads act on the same 'quit' variable
the order of exit becomes unpredictable.
So let the main_loop() finish first and then clean up
all queued lvm jobs.
Do not add any new work, when lvm_thread_exit is set.
Properly clean 'client' structure only for LOCAL_SOCK type.
(Fixes bug from commit 460c19df62)
(in release fix)
Also cleanup-up associated pthreads by using cleanup_zombie() function.
Since this function may change the list, restart scanning always from
the list header.
Note: couple following patches are necessary to make this working properly.
When daemon releases memory and it is still in critical
section, issue an error message and drop memory.
We cannot do anything better for now and we at least
release allocated resource.
FIXME:
This code is triggered when i.e. clvmd is killed while
some LVs are suspend - in this case suspended devices leak,
so if this happens during i.e. clvmd upgrade we have
unresolved problem - even locked rootfs...
This function is typically called for cmd context refresh or destroy.
On the non-clustered case we already unlocked all messages,
however when i.e. 'clvmd' gets break signal it may have
still couple messages queued.
For now just report an error.
Recent debug tracing commit introduce read of uninitialized memory,
since VGID is not really a proper string which ends with '\0'.
Enforce at most 32 (ID_LEN) chars are read from vgid.
(in release fix)
Since commit f12ee43f2e call destroy,
it start to check all VGs are unlocked. However when we become_daemon,
we simply reset locking (since lock is still kept by parent process).
So implement a simple 'reset' flag.
There are two types of CPG communications in a corosync cluster:
messages and state transitions. Cmirrord processes the state
transitions first.
When a cluster mirror issues a POSTSUSPEND, it signals the end of
cluster communication with the rest of the nodes in the cluster.
The POSTSUSPEND marks the last communication of the 'message'
type that will go around the cluster. The node then calls
cpg_leave which causes a final 'state transition' communication to
all of the nodes. Once the out-going node receives its own state
transition notice from the cluster, it finalizes the leave. At this
point, the state of the log is 'INVALID'; but it is possible that
there remains some cluster trafic that was queued up behind the
state transition that still wants to be processed. It is harmless
to attempt to dispatch any remaining messages - they won't be
delivered because the node is no longer in the cluster. However,
there was a warning message that was being printed in this case
that is now removed by this patch. The failure of the dispatch
created a false positive condition that triggered the message.
pvscan --uuid was broken since it was using only 128 char buffers
without checking any write size, so any longer device path leads to
crash.
Also ansure format is properly aligned into columns with this option.
The PV size is displayed in sectors, not kilobytes
for 'pvdisplay -c'
Signed-off-by: Thomas Fehr <fehr@suse.de>
Acked-by: Hannes Reinecke <hare@suse.de>
Instead of sending repeatedly LOCAL_SYNC commands to clvmds
like 'lvs', rememeber the last sent commmand, and if there was no other
clvmd command, drop this redundant SYNC call message.
The problem has started with commit:
56cab8cc03
This introduced correct synchronisation of name, when user requests to know
open_count (needs to wait for udev), however it is also executed for
read-only cases like 'lvs' command.
For now implement very simple solution, which is only monitoring
outgoing clvmd command, and when sequence of LOCAL sync names are
recognized, they are skipped automatically.
TODO:
Future solution might move this variable info 'cmd_context' and
use 'needs_sync' flag also i.e. in file locking code.
