Re: [v4 PATCH] mm: introduce arg_lock to protect arg_start|end and env_start|end in mm_struct

[Yang Shi]

On 4/18/18 2:40 AM, Cyrill Gorcunov wrote:
> On Wed, Apr 18, 2018 at 11:03:14AM +0200, Michal Hocko wrote:
> > > > What about something like the following?
> > > > "
> > > > arg_lock protects concurent updates but we still need mmap_sem for read
> > > > to exclude races with do_brk.
> > > > "
> > > > Acked-by: Michal Hocko <mhocko@xxxxxxxx>
> > > Yes, thanks! Andrew, could you slightly update the changelog please?
> > No, I meant it to be a comment in the _code_.
> Ah, I see. Then small patch on top should do the trick.

Will send out an incremental patch soon.