Re: [PATCH 1/7] ubi: block: Refactor sg list processing for highmem

From: Christoph Hellwig
Date: Thu Aug 10 2023 - 12:21:53 EST


On Thu, Aug 10, 2023 at 06:15:36PM +0200, Richard Weinberger wrote:
> >> The followup patches in this series will switch to kmap_sg()
> >> and we can remove our own helper and the bounce buffer.
> >
> > Please just use kmap_local and avoid the bounce buffering.
>
> Patch 6 does this.

But why add the bounce buffering first if you can avoid it from the
very beginning by just using kmap_local instead of adding a new
caller for the deprecate kmap_atomic?