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

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Message-ID: <CALCETrVN7SY_LgD_3JA0dHC3UQTJs4ptKZG0Xu9J_JNrn-Bnkw@mail.gmail.com>
Date:	Thu, 12 Mar 2015 10:54:43 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Oleg Nesterov <oleg@...hat.com>
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 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.

>
> Jan, Sergio. How much do we want do dump this area ? The change above
> should be justified.
>
> Oleg.
>



-- 
Andy Lutomirski
AMA Capital Management, LLC
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