Re: [PATCH 1/4] fs/splice: enhance direct pipe & splice for moving pages in kernel

Miklos Szeredi
2023-02-14T15:39:19Z

On Tue, 14 Feb 2023 at 15:35, Ming Lei <ming.lei@redhat.com> wrote:

> I understand it isn't one issue from block device driver viewpoint at
> least, since the WRITE to buffer in sink end can be thought as DMA
> to buffer from device, and it is the upper layer(FS)'s responsibility
> for updating page flag. And block driver needn't to handle page
> status update.

The block device still needs to know when the DMA is finished, right?

Thanks,
Miklos