On Tue, Nov 23, 2021 at 8:57 AM David Hildenbrand <david@xxxxxxxxxx> wrote: > [...] > >> > >> I do wonder which these locking contexts are exactly, and if we could > >> also do the same thing on ordinary munmap -- because I assume it can be > >> similarly problematic for some applications. > > > > This is a good question regarding munmap. One main difference is > > munmap takes mmap_lock in write mode and usually performance critical > > applications avoid such operations. > > Maybe we can extend it too most page zapping, if that makes things simpler. > Do you mean doing sync THP split for most of page zapping functions (but only if that makes things simpler)?
