search for: virtio_balloon_read_cmd_id_receiv

...(vb); > } > + spin_unlock_irqrestore(&vb->stop_update_lock, flags); > } > > static void update_balloon_size(struct virtio_balloon *vb) > @@ -609,6 +609,16 @@ static int get_free_page_and_send(struct virtio_balloon *vb) > return 0; > } > > +static void virtio_balloon_read_cmd_id_received(struct virtio_balloon *vb) > +{ > + if (!test_and_clear_bit(VIRTIO_BALLOON_CONFIG_READ_CMD_ID, > + &vb->config_read_bitmap)) > + return; > + > + virtio_cread(vb->vdev, struct virtio_balloon_config, > + free_page_report_cmd_id, &vb->cmd_id_received);...

...(vb); > } > + spin_unlock_irqrestore(&vb->stop_update_lock, flags); > } > > static void update_balloon_size(struct virtio_balloon *vb) > @@ -609,6 +609,16 @@ static int get_free_page_and_send(struct virtio_balloon *vb) > return 0; > } > > +static void virtio_balloon_read_cmd_id_received(struct virtio_balloon *vb) > +{ > + if (!test_and_clear_bit(VIRTIO_BALLOON_CONFIG_READ_CMD_ID, > + &vb->config_read_bitmap)) > + return; > + > + virtio_cread(vb->vdev, struct virtio_balloon_config, > + free_page_report_cmd_id, &vb->cmd_id_received);...

Since virtio-ccw doesn't work with accessing to the config space inside an interrupt context, this patch series avoids that issue by moving the config register accesses to the related workqueue contexts. v1->v2 ChangeLog: - add config_read_bitmap to indicate to the workqueue callbacks about the necessity of reading the related config fields. Wei Wang (2): virtio-balloon: tweak

...size_work); + virtio_balloon_queue_free_page_work(vb); } + spin_unlock_irqrestore(&vb->stop_update_lock, flags); } static void update_balloon_size(struct virtio_balloon *vb) @@ -609,6 +609,16 @@ static int get_free_page_and_send(struct virtio_balloon *vb) return 0; } +static void virtio_balloon_read_cmd_id_received(struct virtio_balloon *vb) +{ + if (!test_and_clear_bit(VIRTIO_BALLOON_CONFIG_READ_CMD_ID, + &vb->config_read_bitmap)) + return; + + virtio_cread(vb->vdev, struct virtio_balloon_config, + free_page_report_cmd_id, &vb->cmd_id_received); +} + static int send_free_pages(s...

..._free_pages(struct virtio_balloon *vb) { > > int err; > > @@ -620,6 +630,7 @@ static int send_free_pages(struct virtio_balloon *vb) > > * stop the reporting. > > */ > > cmd_id_active = virtio32_to_cpu(vb->vdev, vb- > >cmd_id_active); > > + virtio_balloon_read_cmd_id_received(vb); [1] > > if (cmd_id_active != vb->cmd_id_received) > > break; > > > > @@ -637,11 +648,9 @@ static int send_free_pages(struct virtio_balloon > *vb) > > return 0; > > } > > > > -static void report_free_page_func(struct work_st...