On Wed, Jun 08, 2022 at 05:32:34PM +0100, Matthew Wilcox wrote: > On Wed, Jun 08, 2022 at 01:07:32AM -0700, Christoph Hellwig wrote: > > On Sun, Jun 05, 2022 at 08:38:52PM +0100, Matthew Wilcox (Oracle) wrote: > > > Change the guts of check_move_unevictable_pages() over to use folios > > > and add check_move_unevictable_pages() as a wrapper. > > > > The changes here look fine, but please also add patches for converting > > the two callers (which looks mostly trivial to me). > > I do want to get rid of pagevecs entirely, but that conversion isn't > going to happen in time for the next merge window. for_each_sgt_page() > is a little intimidating. for_each_sgt_page, just like other creative scatterlist abuse in the gpu code is a beast. But, instead of doing a for_each_sgt_page to add pages to the pagevec and then do a loop over the pagevec to add to the folio batch it should be pretty trivial to just cut out the middle man.