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When traversing through the QOM tree, we're looking for
a link to a device, e.g.:
link<virtio-balloon-pci>
Introduce a helper that will format the link name at the start,
instead of doing it every time while recursing through the tree.
Ref service passed as a parameter to the callback. And don't unref the
socket that is part of the service being passed at another point in code.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Append privateData of the client only if there are any, otherwise the
previous value (socket data) will get there again.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
When building without avahi support, we used VIR_DEBUG() to note that to
the user. However, functions that fail because of that (return NULL/-1)
did not set the error message. This was the only file that forgot to do
such thing.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1181087
The virStorageBackendFileSystemIsMounted is called from three source paths
checkPool, startPool, and stopPool. Both start and stop validate the FS
fields before calling *IsMounted; however the check path there is no call.
This could lead the code into returning a true in "isActive" if for some
reason the target path for the pool was mounted. The assumption being
that if it was mounted, then we believe we started/mounted it.
It's also of note that commit id '81165294' added an error message for
the start/mount path regarding that the target is already mounted so
fail the start. That check was adjusted by commit id '13fde7ce' to
only message if actually mounted.
At one time this led to the libvirtd restart autostart code to declare
that the pool was active even though the startPool would inhibit startup
and the stopPool would inhibit shutdown. The autostart path changed as
of commit id '2a31c5f0' as part of the keep storage pools started between
libvirtd restarts.
This patch adds the same check made prior to start/mount and stop/unmount
to ensure we have a valid configuration before attempting to see if the
target is already mounted to declare "isActive" or not. Finding an improper
configuration will now cause an error at checkPool, which should make it
so we can no longer be left in a situation where the pool was started and
we have no way to stop it.
https://bugzilla.redhat.com/show_bug.cgi?id=1181087
Currently the assumption on the error message is that there are
no source device paths defined when the number of devices check
fails, but in reality the XML could have had none or it could have
had more than the value supported. Adjust the error message accordingly
to make it clearer what the error really is.
Commit 1882c0bd accidentally used ',' instead of ';'; oddly
enough, the result was still syntactically valid (yes, C is
a fun language). But it made me do a double take; it's better
to use idiomatic syntax.
* daemon/remote.c (remoteRelayDomainEventDeviceAdded): Fix
harmless typo.
Signed-off-by: Eric Blake <eblake@redhat.com>
In qemuDomainUpdateCurrentMemorySize I misplaced the actual update of
the balloon size to a place where it may not be initialized. Move it a
few lines above.
Coverity rightfully determined that in commit 3d021381c7
I made a mistake in the first check if @persDef is not NULL is
dereferencing it rather than checking.
Additionally if the vm is online the code would set @liveDef twice
rather than modifying @persDef. Fix both mistakes.
When getting block device I/O tuning data there is no check for whether
QEMU supports such options and the call fails on
qemuMonitorGetBlockIoThrottle() when getting the particular throttle
data. So try reporting a better error when blkdeviotune is not
supported.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1224053
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
virDomainLiveConfigHelperMethod that is used for this job now does
modify the flags but still requires the callers to extract the correct
definition objects.
In addition coverity and other static analyzers are usually unhappy as
they don't grasp the fact that @flags are upadted according to the
correct def to be present.
To work this issue around and simplify the calling chain let's add a new
helper that will work only on drivers that always copy the persistent
def to a transient at start of a vm. This will allow to drop a few
arguments. The new function syntax will also fill two definition
pointers rather than modifying the @flags parameter.
The vCPU pinning definition gets removed when the domain definition is
being freed later. If there is no next configuration it would remove the
configured pinning.
This reverts commit 01692bb167.
Quoting the original commit message:
"Not sure if it's the correct way to add cputune xml for xend driver..."
It is not. The defition created that is converted from the internal xend
structures would also be leaked since it isn't used any more.
Revert the commit since it does not make sense to keep the info
internally.
In the pre-NUMA ages pinning a vCPU to all pCPUs was eaqual to deleting
the pinning info. Now it does not entirely work that way. Pinning a vCPU
to all pCPUs might be a desired operation. Additionally removal of the
pinning will result into using the default pinning information at the
next boot which might be different from all vcpus.
This patch removes the false assumption that we should remove the
pinning after pinning to all vCPUs and tweaks the documentation for
virsh.
A later patch will implement a new flag for the virDomainPinVcpuFlags
API that will allow to remove the pinning in a sane way.
While we probably won't see machines with more than 65536 cpus for a
while lets store the cpu count as an integer so that we can avoid quite
a lot of overflow checks in our code.
Since the returned structure uses "unsigned long" for memory sizes add a
few overflow checks to notify the user in case we are not able to
represent given values.
When qemu does not support the balloon event the current memory size
needs to be queried. Since there are two places that implement the same
logic, split it out into a function and reuse.
After libvirt issues the balloon resize command, the current balloon
size needs to be changed to the maximum memory size since the vCPUs were
not started and thus the balloon driver could not return the memory.
Since GetXMLDesc and other APIs return the balloon size without updating
it in case they are not able to obtain the job and the memory balloon
does not support the asynchronous event the sizing might be incorrect.
We have been formatting the first serial device also
as a console device, but only if there were no other consoles.
If there is a <serial> device present in the XML, but no serial
<console>, or if there isn't any <console> at all but the domain
definition hasn't gone through a parse->format->parse round-trip,
the <console> device would not be formatted.
Change the code to always add the stub device for the first
serial device.
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1089914
Console/channel devices have their pty devices assigned when the emulator is
actually started. If time is spent in guest preparation, someone attempts
to open the console/channel, the libvirt crashes in virChrdevLockFilePath().
The patch attempts to fix the crash by adding a check before attempting to
open.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
There was a couple of problems with the style fixes applied to the original
patch:
1.) virFileReadAllQuiet comparison was incorrectly parenthesized when moved
into a condition, causing the len to be set to the result of comparison. This,
together with the removed underflow check would underflow the phy buffer.
2.) The logic was broken. Failure to call "ip" would abort the function, thus
the "iw" branch would never be reached.
This aims to fix the issues and work around possible style complains :)
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Refactor the function to return the bitmap instead of an integer and the
inner workings so that they make more sense.
This patch also fixes possible segfault on old systems that was
introduced by commit:
commit f1a43a8e41
Author: Hu Tao <hutao@cn.fujitsu.com>
Date: Fri Sep 14 15:46:59 2012 +0800
use virBitmap to store cpu affinity info
Since commit 55ace7c478, the sockettest
fails without VIR_TEST_DEBUG set. The problem is found by test number
42 (co-incidence?), which tests range '192.168.122.1' -
'192.168.122.255' in network '192.168.122.0/24'. That is supposed to
fail because the end address is equal to the broadcast address.
When comparing these two in 'virSocketAddrEqual(end, &broadcast)',
there is a check for sin_addr as well as for sin_port. That port,
however, is different when we do not enable test debugging. With the
testing enabled, the port is 0 (correctly initialized), but without that
it has a random number there. And that's because the structure is not
initialized anywhere.
By zeroing the structure before filling in the info, we make sure we
return only the address and not any information that was not requested.
And the test work once again.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
