Re: [RFC PATCH v1 1/7] virtio/vsock: add 'VIRTIO_VSOCK_SEQ_EOM' bit

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On Mon, Jul 26, 2021 at 07:33:04PM +0300, Arseny Krasnov wrote:
This bit is used to mark end of messages('EOM' - end of message), while
'VIRIO_VSOCK_SEQ_EOR' is used to pass MSG_EOR.

Signed-off-by: Arseny Krasnov <arseny.krasnov@xxxxxxxxxxxxx>
---
include/uapi/linux/virtio_vsock.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h
index 3dd3555b2740..1de3211a2988 100644
--- a/include/uapi/linux/virtio_vsock.h
+++ b/include/uapi/linux/virtio_vsock.h
@@ -98,6 +98,7 @@ enum virtio_vsock_shutdown {
/* VIRTIO_VSOCK_OP_RW flags values */
enum virtio_vsock_rw {
	VIRTIO_VSOCK_SEQ_EOR = 1,
+	VIRTIO_VSOCK_SEQ_EOM = 2,
};

Already said, but I'll repeat it for completeness.

It's better to rename the flag 1 and use it in the same way we did before, so it's backward compatible.

Obviously we have to update the specifications too, explaining the difference between the two :-)

Thanks,
Stefano




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