On Tue, 02 Apr 2019, Andrew Morton wrote:
Also, we didn't remove any down_write(mmap_sem)s from core code so I'm thinking that the benefit of removing a few mmap_sem-takings from a few obscure drivers (sorry ;)) is pretty small.
afaik porting the remaining incorrect users of locked_vm to pinned_vm was the next step before this one, which made converting locked_vm to atomic hardly worth it. Daniel? Thanks, Davidlohr
