Alexander Duyck 1a83e0b9c4 virtio-balloon: Add locking to prevent possible race when starting hinting ... There is already locking in place when we are stopping free page hinting but there is not similar protections in place when we start. I can only assume this was overlooked as in most cases the page hinting should not be occurring when we are starting the hinting, however there is still a chance we could be processing hints by the time we get back around to restarting the hinting so we are better off making sure to protect the state with the mutex lock rather than just updating the value with no protections. Based on feedback from Peter Maydell this issue had also been spotted by Coverity: CID 1430269 Acked-by: David Hildenbrand <david@redhat.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Message-Id: <20200720175122.21935.78013.stgit@localhost.localdomain> Cc: qemu-stable@nongnu.org Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2020-07-22 07:57:07 -04:00
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Kconfig	virtio-mem: Paravirtualized memory hot(un)plug	2020-07-03 07:57:04 -04:00
Makefile.objs	vhost-vdpa: introduce vhost-vdpa backend	2020-07-07 07:59:51 -04:00
trace-events	virtio,acpi: features, fixes, cleanups.	2020-07-07 17:37:44 +01:00
vhost-backend.c	vhost-vdpa: introduce vhost-vdpa backend	2020-07-07 07:59:51 -04:00
vhost-scsi-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
vhost-stub.c	vhost-user: simplify vhost_user_init/vhost_user_cleanup	2019-03-12 21:22:31 -04:00
vhost-user-blk-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
vhost-user-fs-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
vhost-user-fs.c	qdev: Unrealize must not fail	2020-05-15 07:08:14 +02:00
vhost-user-input-pci.c	qom: Drop parameter @errp of object_property_add() & friends	2020-05-15 07:07:58 +02:00
vhost-user-scsi-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
vhost-user-vsock-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
vhost-user-vsock.c	virtio: add vhost-user-vsock base device	2020-06-12 10:17:06 -04:00
vhost-user.c	Stop vhost-user sending uninitialized mmap_offsets	2020-06-24 17:18:28 -04:00
vhost-vdpa.c	vhost-vdpa: fix the compile issue without kvm	2020-07-08 06:16:48 -04:00
vhost-vsock-common.c	vhost-vsock: add vhost-vsock-common abstraction	2020-06-12 10:17:06 -04:00
vhost-vsock-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
vhost-vsock.c	vhost-vsock: add vhost-vsock-common abstraction	2020-06-12 10:17:06 -04:00
vhost.c	vhost: implement vhost_force_iommu method	2020-07-03 07:57:04 -04:00
virtio-9p-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
virtio-balloon-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
virtio-balloon.c	virtio-balloon: Add locking to prevent possible race when starting hinting	2020-07-22 07:57:07 -04:00
virtio-blk-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
virtio-bus.c	virtio: notify virtqueue via host notifier when available	2019-11-06 06:35:00 -05:00
virtio-crypto-pci.c	virtio: Drop broken and superfluous object_property_set_link()	2020-07-22 07:57:07 -04:00
virtio-crypto.c	qom: Change object_get_canonical_path_component() not to malloc	2020-07-21 16:23:43 +02:00
virtio-input-host-pci.c	Include qemu/module.h where needed, drop it from qemu-common.h	2019-06-12 13:18:33 +02:00
virtio-input-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
virtio-iommu-pci.c	qom: Put name parameter before value / visitor parameter	2020-07-10 15:18:08 +02:00
virtio-iommu.c	virtio-iommu: Fix coverity issue in virtio_iommu_handle_command()	2020-07-13 14:36:08 +01:00
virtio-mem-pci.c	qom: Put name parameter before value / visitor parameter	2020-07-10 15:18:08 +02:00
virtio-mem-pci.h	virtio-pci: Send qapi events when the virtio-mem size changes	2020-07-03 07:57:04 -04:00
virtio-mem.c	qom: Change object_get_canonical_path_component() not to malloc	2020-07-21 16:23:43 +02:00
virtio-mmio.c	qdev: set properties with device_class_set_props()	2020-01-24 20:59:15 +01:00
virtio-net-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
virtio-pci.c	virtio-pci: implement queue_enabled method	2020-07-03 07:57:04 -04:00
virtio-pci.h	virtio-pci: Add Function Level Reset support	2019-09-04 06:33:10 -04:00
virtio-pmem-pci.c	qom: Put name parameter before value / visitor parameter	2020-07-10 15:18:08 +02:00
virtio-pmem-pci.h	virtio-pci: Proxy for virtio-pmem	2019-07-04 17:00:32 -04:00
virtio-pmem.c	qom: Change object_get_canonical_path_component() not to malloc	2020-07-21 16:23:43 +02:00
virtio-rng-pci.c	virtio: Drop broken and superfluous object_property_set_link()	2020-07-22 07:57:07 -04:00
virtio-rng.c	error: Eliminate error_propagate() with Coccinelle, part 1	2020-07-10 15:18:08 +02:00
virtio-scsi-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
virtio-serial-pci.c	qdev: Convert uses of qdev_set_parent_bus() with Coccinelle	2020-06-15 22:05:08 +02:00
virtio.c	virtio-bus: introduce queue_enabled method	2020-07-03 07:57:04 -04:00