Re: [PATCH 6/7] mm: kill vma flag VM_EXECUTABLE

[Konstantin Khlebnikov]

Cyrill Gorcunov wrote:
> On Mon, Apr 02, 2012 at 01:46:03PM +0400, Konstantin Khlebnikov wrote:
> > Cyrill Gorcunov wrote:
> > > On Sat, Mar 31, 2012 at 10:13:24PM +0200, Oleg Nesterov wrote:
> > > > Add Cyrill. This conflicts with
> > > > c-r-prctl-add-ability-to-set-new-mm_struct-exe_file.patch in -mm.
> > >
> > > Thanks for CC'ing, Oleg. I think if thise series go in it won't
> > > be a problem to update my patch accordingly.
> >
> > In this patch I leave mm->exe_file lockless.
> > After exec/fork we can change it only for current task and only if mm->mm_users == 1.
> >
> > something like this:
> >
> > task_lock(current);
> > if (atomic_read(&current->mm->mm_users) == 1)
> > 	set_mm_exe_file(current->mm, new_file);
> > else
> > 	ret = -EBUSY;
> > task_unlock(current);
> >
> > task_lock() protect this code against get_task_mm()
>
> I see. Konstantin, the question is what is more convenient way to update the
> patch in linux-next. The c-r-prctl-add-ability-to-set-new-mm_struct-exe_file.patch
> is in -mm already, so I either should wait until Andrew pick your series up and
> send updating patch on top, or I could fetch your series, update my patch and
> send it here as reply. Hmm?

Let's wait for Andrew's response. And maybe somebody disagree with my changes.
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