Re: [PATCH 11/13] iomap: make buffered writes work with RWF_UNCACHED
From: Matthew Wilcox
Date: Fri Nov 08 2024 - 13:47:03 EST
On Fri, Nov 08, 2024 at 10:43:34AM -0700, Jens Axboe wrote:
> +++ b/fs/iomap/buffered-io.c
> @@ -959,6 +959,8 @@ static loff_t iomap_write_iter(struct iomap_iter *iter, struct iov_iter *i)
> }
> if (iter->iomap.flags & IOMAP_F_STALE)
> break;
> + if (iter->flags & IOMAP_UNCACHED)
> + folio_set_uncached(folio);
This seems like it'd convert an existing page cache folio into being
uncached? Is this just leftover from a previous version or is that a
design decision you made?