RE: Prefetch mmap_sem in ia64_do_page_fault()

From: Christoph Lameter <clameter_at_sgi.com>
Date: 2006-03-30 13:06:07
On Tue, 28 Mar 2006, Chen, Kenneth W wrote:

> One other caveat with this is that if you have a tlb miss on mm->mmap_sem,
> it won't prefetch anything because alt_dtlb_miss handler will nuke the
> ld8.s or lfetch instruction :-(

Still no harm done. It is likely (especially in contended situations) that 
we have the tlb already. 

Maybe we could modify the patch to prefetch the tlb somehow?


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Received on Thu Mar 30 13:06:45 2006

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