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

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



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