Re: [PATCH v21 0/6] block: Use page pinning

From: David Howells
Date: Wed May 24 2023 - 03:36:56 EST

Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:

> > Applied, thanks!
> This ended up on the for-6.5/block branch, but I think it needs to be
> on the splice one, as that is pre-requisite unless I'm missing
> something.

Indeed. As I noted in the cover note:

This requires the splice-read patchset to have been applied first,
otherwise reversion of the ITER_PAGE iterator can race with truncate and
return pages to the allocator whilst they're still undergoing DMA[2].