Re: [PATCH v6 06/27] mm: Add put_folio

Looks good, Reviewed-by: Christoph Hellwig

[PATCH v6 06/27] mm: Add put_folio

If we know we have a folio, we can call put_folio() instead of put_page() and save the overhead of calling compound_head(). Also skips the devmap checks. This commit looks like it should be a no-op, but actually saves 1312 bytes of text with the distro-derived config that I'm testing. Some funct