- 23 2月, 2020 2 次提交
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由 Daniel Henrique Barboza 提交于
Previous patch moved all duplicated code that were setting and getting BlkioDevice parameters to vircgroup.c. We can turn them into static and spare a few symbols in libvirt_private.syms. Signed-off-by: NDaniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: NJán Tomko <jtomko@redhat.com> Reviewed-by: NJán Tomko <jtomko@redhat.com>
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由 Daniel Henrique Barboza 提交于
The current use of the functions that set and get BlkioDevice attributes is doing a set(), followed by a get() of the same parameter right after. This is done because there is no guarantee that the kernel will accept the desired value given by the set() call, thus we need to execute a get() right after to get the actual value. This patch adds helpers inside vircgroup.c to execute these operations. Next patch will use these helpers to reduce code repetition in LXC and QEMU files. Signed-off-by: NDaniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: NJán Tomko <jtomko@redhat.com> Reviewed-by: NJán Tomko <jtomko@redhat.com>
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- 17 1月, 2020 1 次提交
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由 Daniel P. Berrangé 提交于
G_STATIC_ASSERT() is a drop-in functional equivalent of the GNULIB verify() macro. Reviewed-by: NPavel Hrdina <phrdina@redhat.com> Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>
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- 25 7月, 2019 1 次提交
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由 Jim Fehlig 提交于
Some VM configurations may result in a large number of threads created by the associated qemu process which can exceed the system default limit. The maximum number of threads allowed per process is controlled by the pids cgroup controller and is set to 16k when creating VMs with systemd's machined service. The maximum number of threads per process is recorded in the pids.max file under the machine's pids controller cgroup hierarchy, e.g. $cgrp-mnt/pids/machine.slice/machine-qemu\\x2d1\\x2dtest.scope/pids.max Maximum threads per process is controlled with the TasksMax property of the systemd scope for the machine. This patch adds an option to qemu.conf which can be used to override the maximum number of threads allowed per qemu process. If the value of option is greater than zero, it will be set in the TasksMax property of the machine's scope after creating the machine. Signed-off-by: NJim Fehlig <jfehlig@suse.com> Reviewed-by: NDaniel P. Berrangé <berrange@redhat.com>
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- 19 6月, 2019 1 次提交
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由 Jonathon Jongsma 提交于
Signed-off-by: NJonathon Jongsma <jjongsma@redhat.com> Reviewed-by: NJán Tomko <jtomko@redhat.com> Signed-off-by: NJán Tomko <jtomko@redhat.com>
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- 10 4月, 2019 1 次提交
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由 Peter Krempa 提交于
virutil.(c|h) is a very gross collection of random code. Remove the enum handlers from there so we can limit the scope where virtutil.h is used. Signed-off-by: NPeter Krempa <pkrempa@redhat.com> Reviewed-by: NJán Tomko <jtomko@redhat.com>
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- 14 12月, 2018 2 次提交
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由 Daniel P. Berrangé 提交于
Require that all headers are guarded by a symbol named LIBVIRT_$FILENAME where $FILENAME is the uppercased filename, with all characters outside a-z changed into '_'. Note we do not use a leading __ because that is technically a namespace reserved for the toolchain. Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>
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由 Daniel P. Berrangé 提交于
In many files there are header comments that contain an Author: statement, supposedly reflecting who originally wrote the code. In a large collaborative project like libvirt, any non-trivial file will have been modified by a large number of different contributors. IOW, the Author: comments are quickly out of date, omitting people who have made significant contribitions. In some places Author: lines have been added despite the person merely being responsible for creating the file by moving existing code out of another file. IOW, the Author: lines give an incorrect record of authorship. With this all in mind, the comments are useless as a means to identify who to talk to about code in a particular file. Contributors will always be better off using 'git log' and 'git blame' if they need to find the author of a particular bit of code. This commit thus deletes all Author: comments from the source and adds a rule to prevent them reappearing. The Copyright headers are similarly misleading and inaccurate, however, we cannot delete these as they have legal meaning, despite being largely inaccurate. In addition only the copyright holder is permitted to change their respective copyright statement. Reviewed-by: NErik Skultety <eskultet@redhat.com> Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>
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- 25 9月, 2018 2 次提交
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由 Pavel Hrdina 提交于
Once we introduce cgroup v2 support we need to handle processes and threads differently. Reviewed-by: NFabiano Fidêncio <fidencio@redhat.com> Reviewed-by: NJán Tomko <jtomko@redhat.com> Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
In cgroup v2 we need to handle processes and threads differently, following patch will introduce virCgroupAddThread. Reviewed-by: NFabiano Fidêncio <fidencio@redhat.com> Reviewed-by: NJán Tomko <jtomko@redhat.com> Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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- 27 8月, 2018 1 次提交
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由 Pavel Hrdina 提交于
The case where we need path of any controller is only for internal use so move it out to a different function. Reviewed-by: NJán Tomko <jtomko@redhat.com> Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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- 13 8月, 2018 7 次提交
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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- 30 7月, 2018 2 次提交
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由 Michal Privoznik 提交于
This reverts commit 0f80c718. Turns out, our code relies on virCgroupFree(&var) setting var = NULL. Conflicts: src/util/vircgroup.c: context because 94f1855f is not reverted. Signed-off-by: NMichal Privoznik <mprivozn@redhat.com> Reviewed-by: NPavel Hrdina <phrdina@redhat.com>
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由 Michal Privoznik 提交于
This reverts commit 4da4a9fe. Turns out, our code relies on virCgroupFree(&var) setting var = NULL. Signed-off-by: NMichal Privoznik <mprivozn@redhat.com> Reviewed-by: NPavel Hrdina <phrdina@redhat.com>
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- 27 7月, 2018 2 次提交
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由 Sukrit Bhatnagar 提交于
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in src/util/viralloc.h, define a new wrapper around an existing cleanup function which will be called when a variable declared with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant viralloc.h include, since that has moved from the source module into the header. When a variable of type virCgroupPtr is declared using VIR_AUTOPTR, the function virCgroupFree will be run automatically on it when it goes out of scope. This commit also adds an intermediate typedef for virCgroup type for use with the cleanup macros. Signed-off-by: NSukrit Bhatnagar <skrtbhtngr@gmail.com> Reviewed-by: NErik Skultety <eskultet@redhat.com>
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由 Sukrit Bhatnagar 提交于
Modify virCgroupFree function signature to take a value of type virCgroupPtr instead of virCgroupPtr * as the parameter. Change the argument type in all calls to virCgroupFree function from virCgroupPtr * to virCgroupPtr. This is a step towards having consistent function signatures for Free helpers so that they can be used with VIR_AUTOPTR cleanup macro. Signed-off-by: NSukrit Bhatnagar <skrtbhtngr@gmail.com> Reviewed-by: NErik Skultety <eskultet@redhat.com>
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- 25 7月, 2017 1 次提交
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由 Martin Kletzander 提交于
It is more related to a domain as we might use it even when there is no systemd and it does not use any dbus/systemd functions. In order not to use code from conf/ in util/ pass machineName in cgroups code as a parameter. That also fixes a leak of machineName in the lxc driver and cleans up and de-duplicates some code. Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>
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- 09 1月, 2017 1 次提交
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由 Daniel P. Berrange 提交于
Currently when spawning containers with systemd, the container PID 1 will get moved into the systemd machine slice. Libvirt then manually moves the libvirt_lxc and qemu-nbd processes into the cgroups associated with the slice, but skips the systemd controller cgroup. This means that from systemd's POV, libvirt_lxc and qemu-nbd are still part of the libvirtd.service unit. On systemctl daemon-reload, it will notice that libvirt_lxc & qemu-nbd are in the libvirtd.service unit for the systemd controller, but in the machine cgroups for resources. Systemd will thus move them back into the libvirtd.service resource cgroups next time libvirtd is restarted. This causes libvirtd to kill off the container due to incorrect cgroup placement. The solution is to ensure that when moving libvirt_lxc & qemu-nbd, we also move the systemd cgroup controller placement. Normally this is not something we ever want todo, but this is a special case as we are intentionally wanting to move them to a different systemd unit. Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
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- 25 8月, 2016 1 次提交
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由 Peter Krempa 提交于
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- 01 3月, 2016 1 次提交
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由 Henning Schild 提交于
qemuProcessSetupEmulator runs at a point in time where there is only the qemu main thread. Use virCgroupAddTask to put just that one task into the emulator cgroup. That patch makes virCgroupMoveTask and virCgroupAddTaskStrController obsolete. Signed-off-by: NHenning Schild <henning.schild@siemens.com>
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- 17 2月, 2016 2 次提交
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由 Peter Krempa 提交于
When adding disk images to ACL we may call those functions on NFS shares. In that case we might get an EACCES, which isn't really relevant since NFS would not hold a block device. This patch adds a flag that allows to stop reporting an error on EACCES to avoid spaming logs. Currently there's no functional change.
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由 Peter Krempa 提交于
Since commit 47e5b5ae virCgroupAllowDevice allows to pass -1 as either the minor or major device number and it automatically uses '*' in place of that. Reuse the new approach through the code and drop the duplicated functions.
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- 08 2月, 2016 1 次提交
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由 Peter Krempa 提交于
Pass a bitmap of enabled guest vCPUs to virCgroupGetPercpuStats so that non-continuous vCPU topologies can be used.
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- 06 2月, 2016 1 次提交
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由 John Ferlan 提交于
Commit id 'c3bd0019' removed arg3, but forgot to adjust the numbers for NONNULL - caused build failure for coverity
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- 05 2月, 2016 1 次提交
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由 Martin Kletzander 提交于
So, systemd-machined has this philosophy that machine names are like hostnames and hence should follow the same rules. But we always allowed international characters in domain names. Thus we need to modify the machine name we are passing to systemd. In order to change some machine names that we will be passing to systemd, we also need to call TerminateMachine at the end of a lifetime of a domain. Even for domains that were started with older libvirt. That can be achieved thanks to virSystemdGetMachineNameByPID(). And because we can change machine names, we can get rid of the inconsistent and pointless escaping of domain names when creating machine names. So this patch modifies the naming in the following way. It creates the name as <drivername>-<id>-<name> where invalid hostname characters are stripped out of the name and if the resulting name is longer, it truncates it to 64 characters. That way we can start domains we couldn't start before. Well, at least on systemd. To make it work all together, the machineName (which is needed only with systemd) is saved in domain's private data. That way the generation is moved to the driver and we don't need to pass various unnecessary arguments to cgroup functions. The only thing this complicates a bit is the scope generation when validating a cgroup where we must check both old and new naming, so a slight modification was needed there. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1282846Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>
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- 27 1月, 2016 1 次提交
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由 Daniel P. Berrange 提交于
On the host when we start a container, it will be placed in a cgroup path of /machine.slice/machine-lxc\x2ddemo.scope under /sys/fs/cgroup/* Inside the containers' namespace we need to setup /sys/fs/cgroup mounts, and currently will bind mount /machine.slice/machine-lxc\x2ddemo.scope on the host to appear as / in the container. While this may sound nice, it confuses applications dealing with cgroups, because /proc/$PID/cgroup now does not match the directory in /sys/fs/cgroup This particularly causes problems for systems and will make it create repeated path components in the cgroup for apps run in the container eg /machine.slice/machine-lxc\x2ddemo.scope/machine.slice/machine-lxc\x2ddemo.scope/user.slice/user-0.slice/session-61.scope This also causes any systemd service that uses sd-notify to fail to start, because when systemd receives the notification it won't be able to identify the corresponding unit it came from. In particular this break rabbitmq-server startup Future kernels will provide proper cgroup namespacing which will handle this problem, but until that time we should not try to play games with hiding parent cgroups. Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
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- 19 8月, 2015 1 次提交
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由 Martin Kletzander 提交于
Since now they were not needed, but I sense they will be in a short while. Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>
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- 22 7月, 2015 1 次提交
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由 Peter Krempa 提交于
The scope name, even according to our docs is "machine-$DRIVER\x2d$VMNAME.scope" virSystemdMakeScopeName would use the resource partition name instead of "machine-" if it was specified thus creating invalid scope paths. This makes libvirt drop cgroups for a VM that uses custom resource partition upon reconnecting since the detected scope name would not match the expected name generated by virSystemdMakeScopeName. The error is exposed by the following log entry: debug : virCgroupValidateMachineGroup:302 : Name 'machine-qemu\x2dtestvm.scope' for controller 'cpu' does not match 'testvm', 'testvm.libvirt-qemu' or 'machine-test-qemu\x2dtestvm.scope' for a "/machine/test" resource and "testvm" vm. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1238570
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- 10 4月, 2015 2 次提交
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由 John Ferlan 提交于
Replace the virCgroupNew{Vcpu|Emulator|IOThread} calls with the common virCgroupNewThread API Signed-off-by: NJohn Ferlan <jferlan@redhat.com>
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由 John Ferlan 提交于
Create a new common API to replace the virCgroupNew{Vcpu|Emulator|IOThread} API's using an emum to generate the cgroup name Signed-off-by: NJohn Ferlan <jferlan@redhat.com>
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- 08 4月, 2015 1 次提交
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由 Michal Privoznik 提交于
This new internal API checks if given CGroup controller is available. It is going to be needed later when we need to make a decision whether pin domain memory onto NUMA nodes using cpuset CGroup controller or using numa_set_membind(). Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
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- 30 3月, 2015 1 次提交
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由 Michal Privoznik 提交于
Throughout our code, the virCgroupController enum is used in two ways. First as an index to an array of cgroup controllers: struct virCgroup { char *path; struct virCgroupController controllers[VIR_CGROUP_CONTROLLER_LAST]; }; Second way is that when calling virCgroupNew() a bitmask of the enum items can be passed to selectively detect only some controllers. For instance: int virCgroupNewVcpu(virCgroupPtr domain, int vcpuid, bool create, virCgroupPtr *group) { ... controllers = ((1 << VIR_CGROUP_CONTROLLER_CPU) | (1 << VIR_CGROUP_CONTROLLER_CPUACCT) | (1 << VIR_CGROUP_CONTROLLER_CPUSET)); if (virCgroupNew(-1, name, domain, controllers, group) < 0) goto cleanup; } Even though it's highly unlikely that so many new controllers will be invented so that we would overflow when constructing the bitmask, it doesn't hurt to check at compile time either. Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
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- 20 3月, 2015 1 次提交
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由 Martin Kletzander 提交于
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>
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- 15 1月, 2015 1 次提交
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由 Daniel P. Berrange 提交于
systemd-machined introduced a new method CreateMachineWithNetwork that obsoletes CreateMachine. It expects to be given a list of VETH/TAP device indexes for the host side device(s) associated with a container/machine. This falls back to the old CreateMachine method when the new one is not supported.
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