On Fri, Nov 08, 2024 at 10:43:26AM -0700, Jens Axboe wrote: > Add a page flag that file IO can use to indicate that the IO being done > is uncached, as in it should not persist in the page cache after the IO > has been completed. Flag bits are precious resource. It would be nice to re-use an existing bit if possible. PG_reclaim description looks suspiciously close to what you want. I wounder if it would be valid to re-define PG_reclaim behaviour to drop the page after writeback instead of moving to the tail of inactive list. -- Kiryl Shutsemau / Kirill A. Shutemov
