On Mon, Aug 01, 2022 at 11:31:50AM -0400, Johannes Weiner wrote: > XFS hasn't had a ->writepage call for a while. After LSF I internally > tested dropping btrfs' callback, and the results looked good: no OOM > kills with dirty/writeback pages remaining, performance parity. Then I > went on vacation and Christoph beat me to the patch :) To avoid duplicating work with you or Christoph ... it seems like the plan is to kill ->writepage entirely soon, so there's no point in me doing a sweep of all the filesystems to convert ->writepage to ->write_folio, correct? I assume the plan for filesystems which have a writepage but don't have a ->writepages (9p, adfs, affs, bfs, ecryptfs, gfs2, hostfs, jfs, minix, nilfs2, ntfs, ocfs2, reiserfs, sysv, ubifs, udf, ufs, vboxsf) is to give them a writepages, modelled on iomap_writepages(). Seems that adding a block_writepages() might be a useful thing for me to do?
