linux-kernel - Re: [PATCH v2 1/2] mm: mmap: Add new /proc tunable for mmap

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Message-ID: <877flxo9j5.fsf@x220.int.ebiederm.org>
Date:	Wed, 04 Nov 2015 13:21:34 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Michal Hocko <mhocko@...nel.org>
Cc:	Daniel Cashman <dcashman@...roid.com>,
	linux-kernel@...r.kernel.org, linux@....linux.org.uk,
	akpm@...ux-foundation.org, keescook@...omium.org, mingo@...nel.org,
	linux-arm-kernel@...ts.infradead.org, corbet@....net,
	dzickus@...hat.com, xypron.glpk@....de, jpoimboe@...hat.com,
	kirill.shutemov@...ux.intel.com, n-horiguchi@...jp.nec.com,
	aarcange@...hat.com, mgorman@...e.de, tglx@...utronix.de,
	rientjes@...gle.com, linux-mm@...ck.org, linux-doc@...r.kernel.org,
	salyzyn@...roid.com, jeffv@...gle.com, nnk@...gle.com,
	dcashman <dcashman@...gle.com>
Subject: Re: [PATCH v2 1/2] mm: mmap: Add new /proc tunable for mmap_base ASLR.

Michal Hocko <mhocko@...nel.org> writes:

> On Tue 03-11-15 10:10:03, Daniel Cashman wrote:
> [...]
>> +This value can be changed after boot using the
>> +/proc/sys/kernel/mmap_rnd_bits tunable
>
> Why is this not sitting in /proc/sys/vm/ where we already have
> mmap_min_addr. These two sound like they should sit together, no?

Ugh.  Yes.  Moving that file before it becomes part of the ABI sounds
like a good idea.  Daniel when you get around to v3 please move the
file.

Thank you,
Eric
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