On Wed, May 15, 2024 at 02:45:06PM +0800, Kefeng Wang wrote: > All folio_undo_large_rmappable() callers will check folio_test_large() > which already checked by folio_order(), so only add the check This commit message is a little misleading. The folio_order() check in folio_undo_large_rmappable() is primarily for catching order-1 folios, not to check folio_test_large(). You can read more about it in commit: 8897277acfef7f70fdecc. Aside from that, I like the patch. It should make this code easier to maintain.
