Re: [PATCH v2 0/3] mm: improve write performance with RWF_DONTCACHE

Christoph Hellwig
2026-04-09T06:06:52Z

On Wed, Apr 08, 2026 at 02:45:32PM -0400, Jeff Layton wrote:
> > Assuming that looks OK, I'll probably send a v3. Original cover letter
> > from v1 follows:
> >
>
> Actually, that version regressed performance in a couple of cases.
> I think v2 is probably the best approach, on balance.

Limiting writeback to a specific inode has many downsides as I explained
before, so this is not surprising.

> Maybe we can get this into -next so that it can make v7.2?

If you want to target 7.2 we're not in any rush. If you were trying to
say 7.1 we're way to close too the merge window. We also haven't
heard from Jens at all, whom I'd really like to look over this.