On Fri, Dec 20, 2024 at 04:03:44PM +0100, David Hildenbrand wrote: > On 20.12.24 12:08, Kirill A. Shutemov wrote: > > On Fri, Dec 13, 2024 at 08:55:18AM -0700, Jens Axboe wrote: > > > Add a folio flag that file IO can use to indicate that the cached IO > > > being done should be dropped from the page cache upon completion. > > > > > > Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> > > > > Reviewed-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > > > > + David, Vlastimil. > > > > I think we should consider converting existing folio_set_reclaim() / > > SetPageReclaim() users to the new flag. From a quick scan, all of them > > would benefit from dropping the page after writeback is complete instead > > of leaving the folio on the LRU. > > I wonder of there are some use cases where we write a lot of data to then > only consume it read-only from that point on (databases? fancy AI stuff? no > idea :) ). Do we use PG_reclaim for such cases? -- Kiryl Shutsemau / Kirill A. Shutemov
