On Wed, Jun 08, 2022 at 01:02:22AM -0700, Christoph Hellwig wrote: > On Sun, Jun 05, 2022 at 08:38:47PM +0100, Matthew Wilcox (Oracle) wrote: > > If the folio is large, it may overlap the beginning or end of the > > unused range. If it does, we need to avoid invalidating it. > > It's never going to be larger for ext4, is it? But either way, > those precautions looks fine. I don't want to say "never". Today, it's not, but if ext4 ever does gain support for large folios, then this is a precaution it will need to take. I'm trying not to leave traps when I do conversions. > Reviewed-by: Christoph Hellwig <hch@xxxxxx>
