On Sat, 16 Apr 2022 16:14:16 +0800 Miaohe Lin <linmiaohe@xxxxxxxxxx> wrote: > We can't assume pte_offset_map_lock will return same orig_pte value. So > it's necessary to reacquire the orig_pte or pte_unmap_unlock will unmap > the stale pte. hm, where did you learn this info about pte_offset_map_lock()? I assume this is from code inspection only? No observed runtime failures?
