> [...] >> >> Sorry for the confusion. I wanted to say that if the pages which are >> being mlocked are on caches of remote cpus then lru_add_drain_all will >> move them to their corresponding LRUs and then remaining functionality >> of mlock will move them again from their evictable LRUs to unevictable >> LRU. > > yes, but the point is that we are draining pages which might be not > directly related to pages which _will_ be mlocked by the syscall. In > fact those will stay on the cache. This is the primary reason why this > draining doesn't make much sense. > > Or am I still misunderstanding what you are saying here? >
lru_add_drain_all() will drain everything irrespective if those pages are being mlocked or not.
