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(parent: b89a07c) | patch
virtio: document virtio_config_ops restrictions
authorCornelia Huck <cohuck@redhat.com>
Thu, 3 Jan 2019 16:08:04 +0000 (17:08 +0100)
committerMichael S. Tsirkin <mst@redhat.com>
Tue, 15 Jan 2019 01:15:17 +0000 (20:15 -0500)
commitd1c1dad89e7a8be2cfdc7b92deca2c8048f0d263
treee597a3da2ffd8a936ff932d9e19f74ce9f3653a1tree | snapshot
parentb89a07c4373b27321b1f6d4b4fdc369fd45ef79dcommit | diff
virtio: document virtio_config_ops restrictions

Some transports (e.g. virtio-ccw) implement virtio operations that
seem to be a simple read/write as something more involved that
cannot be done from an atomic context.

Give at least a hint about that.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
include/linux/virtio_config.h diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)