On Tue, Jan 15, 2019 at 01:12:07PM -0800, Matthew Wilcox wrote:
> On Tue, Jan 15, 2019 at 08:53:16PM +0000, Jason Gunthorpe wrote:
> > > - new_pinned = atomic_long_read(&mm->pinned_vm) + npages;
> > > + new_pinned = atomic_long_add_return(npages, &mm->pinned_vm);
> > > if (new_pinned > lock_limit && !capable(CAP_IPC_LOCK)) {
> >
> > I thought a patch had been made for this to use check_overflow...
>
> That got removed again by patch 1 ...
Well, that sure needs a lot more explanation. :(
Jason
