Re: [PATCH v6 2/6] mm: use vma_start_write_killable() in mm syscalls

[Lorenzo Stoakes (Oracle)]

On Tue, Mar 31, 2026 at 01:14:51PM -0700, Suren Baghdasaryan wrote:
> On Tue, Mar 31, 2026 at 11:47 AM Lorenzo Stoakes (Oracle)
> <ljs@xxxxxxxxxx> wrote:
> >
> > On Tue, Mar 31, 2026 at 11:29:21AM -0700, Andrew Morton wrote:
> > > On Tue, 31 Mar 2026 08:01:11 -0700 Suren Baghdasaryan <surenb@xxxxxxxxxx> wrote:
> > >
> > > > > Instead? That is, assuming we really need to care about this at all.
> > > > >
> > > > > But I think I don't like this change at all?
> > > >
> > > > Yeah, this was the part I wasn't sure if it's worth adding. With your
> > > > vote confirming my scepticism I'll go ahead and remove the parts I
> > > > added to avoid extra vma_start_write_killable() call (3 instances in
> > > > all) and will post v7.
> > >
> > > Thanks.  I'll remove v6 from mm.git and shall await Lorenzo's advice on
> > > v7.
> > >
> >
> > Ack, if we just drop the problematic bits we might still be fine for 7.1 :)
>
> Let's get your cleanup first and then see where we are. I also hate
> the way I have to report a fake error code, so with that cleanup the
> patchset should be much nicer.

Ack, yeah it's horrid, + _my fault_ :)

I can put something together now perhaps that can potentially be queued up for
7.2 at 7.1-rc1.

Cheers, Lorenzo