vringh: implement vringh_kiov_advance()

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In some cases, it may be useful to provide a way to skip a number
of bytes in a vringh_kiov.

Let's implement vringh_kiov_advance() for this purpose, reusing the
code from vringh_iov_xfer().
We replace that code calling the new vringh_kiov_advance().

Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20210315163450.254396-6-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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Stefano Garzarella 2021-03-15 17:34:41 +01:00 • committed by Michael S. Tsirkin

parent 69c13c58bd

commit b8c06ad4d6

2 changed files with 31 additions and 12 deletions

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41

drivers/vhost/vringh.c

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2

include/linux/vringh.h

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