On Tue, Apr 10, 2018 at 12:33:35PM -0700, Yang Shi wrote: ... > > The race condition is just valid when protecting start_brk, brk, start_data > and end_data with the new lock, but keep using mmap_sem in brk path. > > So, we should just need make a little tweak to have mmap_sem protect > start_brk, brk, start_data and end_data, then have the new lock protect > others so that we still can remove mmap_sem in proc as the patch is aimed to > do. +1. Sounds like a plan.
