OpenCloudOS-Kernel/drivers/virtio
David Hildenbrand f55484fd7b virtio-mem: check if the config changed before fake offlining memory
If we repeatedly fail to fake offline memory to unplug it, we won't be
sending any unplug requests to the device. However, we only check if the
config changed when sending such (un)plug requests.

We could end up trying for a long time to unplug memory, even though
the config changed already and we're not supposed to unplug memory
anymore. For example, the hypervisor might detect a low-memory situation
while unplugging memory and decide to replug some memory. Continuing
trying to unplug memory in that case can be problematic.

So let's check on a more regular basis.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20230713145551.2824980-5-david@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-08-10 15:51:46 -04:00
..
Kconfig virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
Makefile virtio: replace restricted mem access flag with callback 2022-08-01 07:42:49 +02:00
virtio.c driver core: make struct bus_type.uevent() take a const * 2023-01-27 13:45:52 +01:00
virtio_anchor.c virtio: replace restricted mem access flag with callback 2022-08-01 07:42:49 +02:00
virtio_balloon.c mm, treewide: redefine MAX_ORDER sanely 2023-04-05 19:42:46 -07:00
virtio_dma_buf.c dma-buf: move dma-buf symbols into the DMA_BUF module namespace 2021-10-25 14:53:08 +02:00
virtio_input.c virtio: wrap config->reset calls 2022-01-14 18:50:52 -05:00
virtio_mem.c virtio-mem: check if the config changed before fake offlining memory 2023-08-10 15:51:46 -04:00
virtio_mmio.c virtio-mmio: don't break lifecycle of vm_dev 2023-08-10 15:24:27 -04:00
virtio_pci_common.c virtio-pci: Fix legacy device flag setting error in probe 2023-08-10 15:24:28 -04:00
virtio_pci_common.h virtio_pci: Optimize virtio_pci_device structure size 2023-06-27 10:47:08 -04:00
virtio_pci_legacy.c virtio-pci: Fix legacy device flag setting error in probe 2023-08-10 15:24:28 -04:00
virtio_pci_legacy_dev.c virtio/virtio_pci_legacy_dev: ensure the correct return value 2022-01-14 18:50:53 -05:00
virtio_pci_modern.c virtio: add VIRTIO_F_NOTIFICATION_DATA feature support 2023-04-21 03:02:35 -04:00
virtio_pci_modern_dev.c virtio: allow caller to override device DMA mask in vp_modern 2023-06-27 10:47:08 -04:00
virtio_ring.c virtio: add VIRTIO_F_NOTIFICATION_DATA feature support 2023-04-21 03:02:35 -04:00
virtio_vdpa.c virtio-vdpa: Fix cpumask memory leak in virtio_vdpa_find_vqs() 2023-08-10 15:24:28 -04:00