Messages in this thread | | | Date | Tue, 13 Nov 2007 18:03:51 -0800 (PST) | From | Christoph Lameter <> | Subject | Re: [patch 01/28] cpu alloc: The allocator |
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On Tue, 13 Nov 2007, David Miller wrote:
> From: Christoph Lameter <clameter@sgi.com> > Date: Tue, 13 Nov 2007 17:57:15 -0800 (PST) > > > Hmmmm. cpu_alloc really does not need zeroed data. Just an address > > fixed by the compiler where stuff can be put. Can the loader do that > > somehow? > > Yes, and I think IA64 uses such a scheme for it's 64KB fixed > per-cpu TLB mapping thing doesn't it?
The per cpu TLB mapping is virtually mapped. The real memory allocation behind it occurs dynamically from bootmem.
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