linux-kernel - Re: vvar, gup && coredump

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Message-ID: <20150312180520.GB13711@redhat.com>
Date:	Thu, 12 Mar 2015 19:05:20 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Jan Kratochvil <jan.kratochvil@...hat.com>,
	Sergio Durigan Junior <sergiodj@...hat.com>,
	GDB Patches <gdb-patches@...rceware.org>,
	Pedro Alves <palves@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: vvar, gup && coredump

On 03/12, Andy Lutomirski wrote:
>
> On Thu, Mar 12, 2015 at 10:46 AM, Oleg Nesterov <oleg@...hat.com> wrote:
> > On 03/12, Oleg Nesterov wrote:
> >>
> >> Yes, this is true. OK, lets not dump it.
> >
> > OTOH. We can probably add ->access() into special_mapping_vmops, this
> > way __access_remote_vm() could work even if gup() fails ?
>
> Let's wait until my special_mapping vmops rework lands to do that.
> I'll dust it off and resubmit it.

OK. Please CC me. Not that I think I can help, just I want to understand
what you are going to do.

Although currently I do not even read most of emails I get ;)

Oleg.

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