Re: Shared mmaps

[Andi Kleen <ak@muc.de>]

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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