On Fri, Aug 10, 2018 at 07:36:01AM +0800, Yang Shi wrote: > +/* > + * Zap pages with read mmap_sem held > + * > + * uf is the list for userfaultfd > + */ > +static int do_munmap_zap_rlock(struct mm_struct *mm, unsigned long start, > + size_t len, struct list_head *uf) I don't like the name here. We aren't zapping rlocks, we're zapping pages. Not sure what to call it though ...