On Mon, Jul 11, 2022 at 04:49:43PM +0800, Huang Ying wrote: > Before commit b5bade978e9b ("mm: migrate: fix the return value of > migrate_pages()"), the tail pages of THP will be put in the "from" > list directly. So one of the loop cursors (page2) needs to be reset, > as is done in try_split_thp() via list_safe_reset_next(). But after > the commit, the tail pages of THP will be put in a dedicated > list (thp_split_pages). That is, the "from" list will not be changed > during splitting. So, it's unnecessary to call list_safe_reset_next() > anymore. > > This is a code cleanup, no functionality changes are expected. > > Signed-off-by: "Huang, Ying" <ying.huang@xxxxxxxxx> > Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> > Cc: Zi Yan <ziy@xxxxxxxxxx> > Cc: Yang Shi <shy828301@xxxxxxxxx> Reviewed-by: Oscar Salvador <osalvador@xxxxxxx> -- Oscar Salvador SUSE Labs