Matthew Wilcox (Oracle) <wi...@infradead.org> wrote: > The migration code used to be able to migrate dirty 9p folios by writing > them back using writepage. When the writepage method was removed, > we neglected to add a migrate_folio method, which means that dirty 9p > folios have been unmovable ever since. This reduced our success at > defragmenting memory on machines which use 9p heavily. > > Fixes: 80105ed2fd27 (9p: Use netfslib read/write_iter) > Cc: sta...@vger.kernel.org > Cc: David Howells <dhowe...@redhat.com> > Cc: v...@lists.linux.dev > Signed-off-by: Matthew Wilcox (Oracle) <wi...@infradead.org>
Reviewed-by: David Howells <dhowe...@redhat.com>