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Re: Shared mmaps

To: Andi Kleen <ak@muc.de>
Subject: Re: Shared mmaps
From: Matthew Wilcox <matthew@wil.cx>
Date: Mon, 5 Mar 2001 17:50:01 +0000
Cc: Matthew Wilcox <matthew@wil.cx>, linux-mm@kvack.org
In-Reply-To: <20010305115219.A573@fred.local>; from ak@muc.de on Mon, Mar 05, 2001 at 11:52:19AM +0100
References: <20010304211053.F1865@parcelfarce.linux.theplanet.co.uk> <20010305115219.A573@fred.local>
Sender: owner-linux-mm@kvack.org
User-Agent: Mutt/1.2.5i

On Mon, Mar 05, 2001 at 11:52:19AM +0100, Andi Kleen wrote:
> With some extensions I would also find it useful for x86-64 for the 32bit
> mmap emulation (currently it's using a current-> hack)
> For that flags would need to be passed to TASK_UNMAPPED_BASE.

Don't you simply check current->personality to determine whether or not
this is a 32-bit task?

get_unmapped_area is already (optionally) an arch-specific function, so
you can make all the changes you need to that function.

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Follow-Ups:
- Re: Shared mmaps
  - From: Andi Kleen <ak@muc.de>

References:
- Shared mmaps
  - From: Matthew Wilcox <matthew@wil.cx>
- Re: Shared mmaps
  - From: Andi Kleen <ak@muc.de>
- Re: Shared mmaps
  - From: Andi Kleen <ak@muc.de>

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