Messages in this thread | | | Date | Sun, 15 Aug 2004 18:56:44 -0700 | From | "David S. Miller" <> | Subject | Re: page fault fastpath: Increasing SMP scalability by introducing pte locks? |
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On Sun, 15 Aug 2004 17:11:53 -0700 (PDT) Christoph Lameter <clameter@sgi.com> wrote:
> pgd/pmd walking should be possible always even without the vma semaphore > since the CPU can potentially walk the chain at anytime.
munmap() can destroy pmd and pte tables. somehow we have to protect against that, and currently that is having the VMA semaphore held for reading, see free_pgtables().
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