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libvirt/src/conf
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Daniel P. Berrangé 008abeb03c nodedev: fix race in API usage vs initial device enumeration 
During startup the udev node device driver impl uses a background thread
to populate the list of devices to avoid blocking the daemon startup
entirely. There is no synchronization to the public APIs, so it is
possible for an application to start calling APIs before the device
initialization is complete.

This was not a problem in the old approach where libvirtd was started
on boot, as initialization would easily complete before any APIs were
called.

With the use of socket activation, however, APIs are invoked from the
very moment the daemon starts. This is easily seen by doing a

  'virsh -c nodedev:///system list'

the first time it runs it will only show one or two devices. The second
time it runs it will show all devices. The solution is to introduce a
flag and condition variable for APIs to synchronize against before
returning any data.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-03-16 17:35:04 +00:00
..
backup_conf.c
Remove checking of return value of virHashNew
2020-01-31 14:28:28 +01:00
backup_conf.h
conf: backup: Allow configuration of names exported via NBD
2020-01-24 13:40:48 +01:00
capabilities.c
virsh: include virutil.h where used
2020-02-24 23:15:50 +01:00
capabilities.h
Add a space before ending a comment
2020-01-30 12:32:03 +01:00
checkpoint_conf.c
conf: drop virCapsPtr param from snapshot & checkpoint APIs
2019-12-09 10:17:27 +00:00
checkpoint_conf.h
conf: drop virCapsPtr param from snapshot & checkpoint APIs
2019-12-09 10:17:27 +00:00
cpu_conf.c
cpu_conf: Format vendor_id for host-model CPUs
2020-02-19 15:11:40 +01:00
cpu_conf.h
Remove virutil.h from all header files
2020-02-24 23:15:50 +01:00
device_conf.c
Introducing new address type='unassigned' for PCI hostdevs
2019-12-18 13:08:27 -05:00
device_conf.h
Remove virutil.h from all header files
2020-02-24 23:15:50 +01:00
domain_addr.c
virhash: Fix the expectations of virHashKeyEqual implementations
2020-02-04 13:45:33 +01:00
domain_addr.h
conf: domain: use #pragma once in headers
2019-06-13 17:05:08 +02:00
domain_audit.c
src: assume sys/sysmacros.h always exists on Linux
2020-02-04 14:00:45 +00:00
domain_audit.h
conf: domain: use #pragma once in headers
2019-06-13 17:05:08 +02:00
domain_capabilities.c
conf: domaincaps: Add 'backup' feature flag
2019-12-10 12:41:58 +01:00
domain_capabilities.h
conf: domaincaps: Add 'backup' feature flag
2019-12-10 12:41:58 +01:00
domain_conf.c
conf: Add support for setting timeout and readahead size for network disks
2020-03-16 15:51:44 +01:00
domain_conf.h
conf: add virtiofs-related elements and attributes
2020-03-04 12:08:50 +01:00
domain_event.c
conf: remove NULL check from virDomainQemuMonitorEventNew
2019-11-21 12:44:23 +01:00
domain_event.h
conf: remove NULL check from virDomainQemuMonitorEventNew
2019-11-21 12:44:23 +01:00
domain_nwfilter.c
conf: use g_strdup instead of VIR_STRDUP
2019-10-21 12:51:56 +02:00
domain_nwfilter.h
conf: domain: use #pragma once in headers
2019-06-13 17:05:08 +02:00
interface_conf.c
conf: remove unneeded labels
2020-01-07 16:40:41 +01:00
interface_conf.h
Remove virutil.h from all header files
2020-02-24 23:15:50 +01:00
Makefile.inc.am
backup: Parse and output backup XML
2019-12-10 12:41:56 +01:00
moment_conf.c
src: replace clock_gettime()/gettimeofday() with g_get_real_time()
2020-01-03 15:42:13 +00:00
moment_conf.h
snapshot: Store both config and live XML in the snapshot domain
2019-09-11 13:09:45 +02:00
netdev_bandwidth_conf.c
conf: do not pass vm object to virDomainClearNetBandwidth
2020-02-25 17:50:47 +01:00
netdev_bandwidth_conf.h
conf: do not pass vm object to virDomainClearNetBandwidth
2020-02-25 17:50:47 +01:00
netdev_vlan_conf.c
Always put _LAST enums on second line of VIR_ENUM_IMPL
2019-04-11 12:47:23 -04:00
netdev_vlan_conf.h
conf: network: use #pragma once in headers
2019-06-13 17:05:09 +02:00
netdev_vport_profile_conf.c
conf: return a const from virDomainNetGetActualVirtPortProfile
2019-11-25 15:29:56 -05:00
netdev_vport_profile_conf.h
conf: return a const from virDomainNetGetActualVirtPortProfile
2019-11-25 15:29:56 -05:00
network_conf.c
conf: parse/format <port isolated='yes|no'/>
2020-02-20 23:09:27 -05:00
network_conf.h
conf: parse/format <port isolated='yes|no'/>
2020-02-20 23:09:27 -05:00
network_event.c
Require a semicolon for VIR_ONCE_GLOBAL_INIT calls
2019-02-03 17:46:29 -05:00
network_event.h
conf: network: use #pragma once in headers
2019-06-13 17:05:09 +02:00
networkcommon_conf.c
conf: remove unneeded labels
2020-01-07 16:40:41 +01:00
networkcommon_conf.h
conf: network: use #pragma once in headers
2019-06-13 17:05:09 +02:00
node_device_conf.c
src: replace mdir_name() with g_path_get_dirname()
2020-01-03 15:42:13 +00:00
node_device_conf.h
Remove virutil.h from all header files
2020-02-24 23:15:50 +01:00
node_device_event.c
Require a semicolon for VIR_ONCE_GLOBAL_INIT calls
2019-02-03 17:46:29 -05:00
node_device_event.h
conf: node device: use #pragma once in headers
2019-06-13 17:05:09 +02:00
node_device_util.c
virsh: include virutil.h where used
2020-02-24 23:15:50 +01:00
node_device_util.h
conf: node device: use #pragma once in headers
2019-06-13 17:05:09 +02:00
numa_conf.c
numa_conf: add virDomainNumaNodesDistancesAreBeingSet() helper
2019-12-16 17:50:31 -05:00
numa_conf.h
Remove virutil.h from all header files
2020-02-24 23:15:50 +01:00
nwfilter_conf.c
conf: remove unneeded labels
2020-01-07 16:40:41 +01:00
nwfilter_conf.h
conf: nwfilter: use #pragma once in headers
2019-06-13 17:05:09 +02:00
nwfilter_ipaddrmap.c
conf: use g_strdup instead of VIR_STRDUP
2019-10-21 12:51:56 +02:00
nwfilter_ipaddrmap.h
conf: nwfilter: use #pragma once in headers
2019-06-13 17:05:09 +02:00
nwfilter_params.c
conf: remove unneeded labels
2020-01-07 16:40:41 +01:00
nwfilter_params.h
conf: nwfilter: use #pragma once in headers
2019-06-13 17:05:09 +02:00
object_event_private.h
conf: misc: use #pragma once in headers
2019-06-13 17:05:09 +02:00
object_event.c
conf: use g_strdup instead of VIR_STRDUP
2019-10-21 12:51:56 +02:00
object_event.h
conf: misc: use #pragma once in headers
2019-06-13 17:05:09 +02:00
secret_conf.c
util: buffer: Remove virBufferCheckError
2019-10-24 19:35:34 +02:00
secret_conf.h
Remove virutil.h from all header files
2020-02-24 23:15:50 +01:00
secret_event.c
Require a semicolon for VIR_ONCE_GLOBAL_INIT calls
2019-02-03 17:46:29 -05:00
secret_event.h
conf: misc: use #pragma once in headers
2019-06-13 17:05:09 +02:00
snapshot_conf_priv.h
conf: snapshot: Provide a function to free virDomainSnapshotDiskDefPtr
2019-07-18 17:59:34 +02:00
snapshot_conf.c
conf: Always format storage source auth and encryption under <source> for backing files
2020-01-13 12:53:58 +01:00
snapshot_conf.h
src: replace verify(expr) with G_STATIC_ASSERT(expr)
2020-01-17 10:02:01 +00:00
storage_adapter_conf.c
conf: make virPCIDeviceAddressFormat void
2019-02-19 15:59:38 +00:00
storage_adapter_conf.h
conf: storage: use #pragma once in headers
2019-06-13 17:05:09 +02:00
storage_capabilities.c
conf: storagecaps: Fix broken attempt at being const-correct
2019-11-12 14:37:57 +01:00
storage_capabilities.h
conf: storagecaps: Fix broken attempt at being const-correct
2019-11-12 14:37:57 +01:00
storage_conf.c
virsh: include virutil.h where used
2020-02-24 23:15:50 +01:00
storage_conf.h
Add a space before ending a comment
2020-01-30 12:32:03 +01:00
storage_event.c
Require a semicolon for VIR_ONCE_GLOBAL_INIT calls
2019-02-03 17:46:29 -05:00
storage_event.h
conf: storage: use #pragma once in headers
2019-06-13 17:05:09 +02:00
virchrdev.c
virchrdev: Drop needless 'cleanup' label in virChrdevLockFileCreate()
2020-01-16 14:13:47 +01:00
virchrdev.h
conf: misc: use #pragma once in headers
2019-06-13 17:05:09 +02:00
virconftypes.h
backup: Parse and output backup XML
2019-12-10 12:41:56 +01:00
virdomaincheckpointobjlist.c
src: replace verify(expr) with G_STATIC_ASSERT(expr)
2020-01-17 10:02:01 +00:00
virdomaincheckpointobjlist.h
backup: Allow for lists of checkpoint objects
2019-07-26 16:48:58 -05:00
virdomainmomentobjlist.c
util: consolidate on one free callback for hash data
2019-11-22 14:21:28 +00:00
virdomainmomentobjlist.h
backup: Allow for lists of checkpoint objects
2019-07-26 16:48:58 -05:00
virdomainobjlist.c
conf: drop virCapsPtr param from domain obj list APIs
2019-12-09 10:17:27 +00:00
virdomainobjlist.h
conf: drop virCapsPtr param from domain obj list APIs
2019-12-09 10:17:27 +00:00
virdomainsnapshotobjlist.c
Use G_N_ELEMENTS instead of ARRAY_CARDINALITY
2019-10-15 16:14:19 +02:00
virdomainsnapshotobjlist.h
snapshot: Don't leak moment obj list metaroot to callers
2019-07-24 17:03:34 -05:00
virinterfaceobj.c
conf: use g_strdup instead of VIR_STRDUP
2019-10-21 12:51:56 +02:00
virinterfaceobj.h
conf: misc: use #pragma once in headers
2019-06-13 17:05:09 +02:00
virnetworkobj.c
conf: fix use after free
2020-02-24 17:24:49 +00:00
virnetworkobj.h
Use G_GNUC_WARN_UNUSED_RESULT instead of ATTRIBUTE_RETURN_CHECK
2019-10-15 11:25:22 +02:00
virnetworkportdef.c
virNetworkPortDefSaveStatus: Fix potentially uninitialized 'path' by refactoring cleanup
2020-03-05 16:21:47 +01:00
virnetworkportdef.h
conf: reduce includes in virnetworkportdef.h
2020-02-25 17:50:47 +01:00
virnodedeviceobj.c
conf: use g_strdup instead of VIR_STRDUP
2019-10-21 12:51:56 +02:00
virnodedeviceobj.h
nodedev: fix race in API usage vs initial device enumeration
2020-03-16 17:35:04 +00:00
virnwfilterbindingdef.c
util: buffer: Remove virBufferCheckError
2019-10-24 19:35:34 +02:00
virnwfilterbindingdef.h
conf: virnwfilterbindingdef: include virxml.h
2020-02-25 17:46:45 +01:00
virnwfilterbindingobj.c
virsh: include virutil.h where used
2020-02-24 23:15:50 +01:00
virnwfilterbindingobj.h
conf: nwfilter: use #pragma once in headers
2019-06-13 17:05:09 +02:00
virnwfilterbindingobjlist.c
conf: use G_GNUC_UNUSED
2019-10-15 11:25:22 +02:00
virnwfilterbindingobjlist.h
conf: nwfilter: use #pragma once in headers
2019-06-13 17:05:09 +02:00
virnwfilterobj.c
conf: use g_strdup instead of VIR_STRDUP
2019-10-21 12:51:56 +02:00
virnwfilterobj.h
nwfilter: acquire a pidfile in the driver root directory
2019-07-11 12:46:20 +01:00
virsavecookie.c
util: buffer: Remove virBufferCheckError
2019-10-24 19:35:34 +02:00
virsavecookie.h
conf: misc: use #pragma once in headers
2019-06-13 17:05:09 +02:00
virsecretobj.c
conf: remove unneeded cleanup labels
2019-11-12 17:54:01 +01:00
virsecretobj.h
conf: misc: use #pragma once in headers
2019-06-13 17:05:09 +02:00
virstorageobj.c
conf: Use g_strdup_printf() instead of virAsprintf()
2019-11-12 16:15:58 +01:00
virstorageobj.h
storage_driver: Protect pool def during startup and build
2019-08-23 09:32:26 +02:00