From: Andi Kleen <ak@muc.de>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Andi Kleen <ak@muc.de>, linux-mm@kvack.org
Subject: Re: Shared mmaps
Date: Mon, 5 Mar 2001 23:52:14 +0100 [thread overview]
Message-ID: <20010305235214.A15922@fred.local> (raw)
In-Reply-To: <20010305175001.P1865@parcelfarce.linux.theplanet.co.uk>; from matthew@wil.cx on Mon, Mar 05, 2001 at 06:50:01PM +0100
On Mon, Mar 05, 2001 at 06:50:01PM +0100, Matthew Wilcox wrote:
> 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?
ATM yes, but LinuxThreads will eventually need to allocate memory blocks
<4GB too (due to the way the x86-64 context switch works it is much cheaper
to put thread local data pointed to by fs in <4GB)
-Andi
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next prev parent reply other threads:[~2001-03-05 22:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-04 21:10 Matthew Wilcox
2001-03-05 0:59 ` Rik van Riel
2001-03-05 10:52 ` Andi Kleen
2001-03-05 17:50 ` Matthew Wilcox
2001-03-05 22:52 ` Andi Kleen [this message]
2001-03-05 0:20 Matthew Wilcox
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