On Tue, Aug 15, 2023 at 09:59:08AM +0200, David Hildenbrand wrote: > On 15.08.23 05:26, Matthew Wilcox (Oracle) wrote: > > Store the folio order in the low byte of the flags word in the first > > tail page. This frees up the word that was being used to store the > > order and dtor bytes previously. > > > > Is there still a free flag in page[1] after this change? I need one, at > least for a prototype I'm working on. (could fallback to page[2], though > eventually, though) There are only ~13 flags used in page[1] at this point. Plenty of space.
