Re: [PATCH] xfs: add CONFIG_MMU dependency

[Christoph Hellwig]

On Mon, Sep 09, 2024 at 03:42:19PM +0200, Jan Kara wrote:
> Thanks! I've noticed the error from 0-day over the weekend as well. At this
> point I'd rather handle this in a similar way as e.g. filemap_fault() is
> handled in NOMMU case. I agree users of XFS (or bcachefs for that matter)
> with !CONFIG_MMU are unlikely but fsnotify_filemap_fault() can grow more
> users over time and providing the stub is easy enough. I'll push out fixed
> version of the patch.

Yes, the stub is the right fix for this.