Let's be able to distinguish if the device or if memory is busy. Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx> Cc: Pankaj Gupta <pankaj.gupta.linux@xxxxxxxxx> Signed-off-by: David Hildenbrand <david@xxxxxxxxxx> --- drivers/virtio/virtio_mem.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c index a719e1a04ac7..abd93b778a26 100644 --- a/drivers/virtio/virtio_mem.c +++ b/drivers/virtio/virtio_mem.c @@ -893,7 +893,7 @@ static int virtio_mem_send_plug_request(struct virtio_mem *vm, uint64_t addr, case VIRTIO_MEM_RESP_NACK: return -EAGAIN; case VIRTIO_MEM_RESP_BUSY: - return -EBUSY; + return -ETXTBSY; case VIRTIO_MEM_RESP_ERROR: return -EINVAL; default: @@ -919,7 +919,7 @@ static int virtio_mem_send_unplug_request(struct virtio_mem *vm, uint64_t addr, vm->plugged_size -= size; return 0; case VIRTIO_MEM_RESP_BUSY: - return -EBUSY; + return -ETXTBSY; case VIRTIO_MEM_RESP_ERROR: return -EINVAL; default: @@ -941,7 +941,7 @@ static int virtio_mem_send_unplug_all_request(struct virtio_mem *vm) atomic_set(&vm->config_changed, 1); return 0; case VIRTIO_MEM_RESP_BUSY: - return -EBUSY; + return -ETXTBSY; default: return -ENOMEM; } @@ -1557,11 +1557,15 @@ static void virtio_mem_run_wq(struct work_struct *work) * or we have too many offline memory blocks. */ break; - case -EBUSY: + case -ETXTBSY: /* * The hypervisor cannot process our request right now - * (e.g., out of memory, migrating) or we cannot free up - * any memory to unplug it (all plugged memory is busy). + * (e.g., out of memory, migrating); + */ + case -EBUSY: + /* + * We cannot free up any memory to unplug it (all plugged memory + * is busy). */ case -ENOMEM: /* Out of memory, try again later. */ -- 2.25.3
