> +/*
> + * This must only be called once all bios have been issued so that the
> refcount
> + * can only decrease. This just waits for all bios to complete.
> + * Returns the length of bytes copied or error
> + */
> +static ssize_t blkdev_copy_wait_io_completion(struct blkdev_copy_io *cio)
Hi, N
On Fri, Sep 22, 2023 at 06:56:50PM +0900, Jinyoung Choi wrote:
> > +/*
> > + * This must only be called once all bios have been issued so that the
> > refcount
> > + * can only decrease. This just waits for all bios to complete.
> > + * Returns the length of bytes copied or error
> > + */
> > +sta
Introduce blkdev_copy_offload to perform copy offload.
Issue REQ_OP_COPY_SRC with source info along with taking a plug.
This flows till request layer and waits for dst bio to arrive.
Issue REQ_OP_COPY_DST with destination info and this bio reaches request
layer and merges with src request.
For any
